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Sequence · 2009-09-29

M 8.1 · Observed seismic cluster · 2009 Samoa Earthquake

Explore clusters of M4.5+ events observed around significant earthquakes. These clusters are descriptive and are not presented as earthquake predictions.

M4.5+ events in cluster231
M6+4
Analysis radius516 km
Observation window14 days
Largest secondary eventM 6.1
Quake Pulse · Major sequence

What the sequence shows

After the M 8.1 reference event, Quake Pulse counts 124 M4+ event(s) in the first 24 hours and 208 in the first 7 days. Fourteen-day M4.5+ activity is about 44.0× the average equivalent derived from the previous year. The largest secondary event is M 2.0 below the reference event.

94/100Sequence score
Events in the previous 24 h0
In the first hour26
In the first 24 hours124
In the first 7 days208
Within 14 days231
Peak one-hour count26

Local historical context

Descriptive comparison with M4.5+ events observed in the same radius during the 365 days before the sequence.

M4.5+ events / 365 d137Average 14-day equivalent5.3Activity / baseline ratio44.0×

A ratio above 1 means denser M4.5+ activity than the average equivalent derived from the previous 365 days. It is not a risk measure or a forecast.

Reference event

Largest secondary eventM 6.1Magnitude gapM 2.0Observed duration11.7 d

Earlier events are shown as context only. They are not labelled precursors and should not be interpreted as predictive signals.

Evolving sequence map

Shows M4+ cluster events according to elapsed time after the reference event.

1 hour24 hours7 days14 days
2009 Samoa Earthquake · 516 kmInteractive 3D view of earthquakes within 516 km of 2009 Samoa Earthquake.2009 Samoa EarthquakeM 6.0 · 95 km NE of Hihifo, Tonga · 115.0 kmM 5.6 · 73 km ENE of Hihifo, Tonga · 116.3 kmM 5.4 · 31 km ENE of Hihifo, Tonga · 157.3 kmM 5.1 · 226 km E of Hihifo, Tonga · 94.3 kmM 5.3 · Tonga · 125.2 kmM 5.1 · 78 km E of Hihifo, Tonga · 118.9 kmM 5.2 · 21 km N of Hihifo, Tonga · 184.5 kmM 5.6 · 173 km SSW of Matavai, Samoa · 11.4 kmM 5.0 · 113 km N of Hihifo, Tonga · 187.8 kmM 5.1 · 71 km SE of Hihifo, Tonga · 153.7 kmM 5.1 · 76 km E of Hihifo, Tonga · 119.9 kmM 5.1 · 79 km ESE of Hihifo, Tonga · 128.7 kmM 5.4 · 91 km NE of Hihifo, Tonga · 123.7 kmM 5.6 · 198 km SSW of Vailoatai, American Samoa · 68.4 kmM 5.1 · 102 km E of Hihifo, Tonga · 100.7 kmM 5.8 · 92 km ESE of Hihifo, Tonga · 123.4 kmM 5.7 · 60 km ESE of Hihifo, Tonga · 143.6 kmM 4.8 · 86 km E of Hihifo, Tonga · 117.9 kmM 5.1 · 67 km E of Hihifo, Tonga · 123.9 kmM 4.9 · 92 km NE of Hihifo, Tonga · 129.6 kmM 5.2 · 124 km SSW of Lotofag?, Samoa · 71.4 kmM 5.0 · Samoa Islands region · 72.3 kmM 5.5 · Tonga · 123.5 kmM 5.3 · 135 km SE of Hihifo, Tonga · 179.3 kmM 5.1 · 130 km SSW of Lotofag?, Samoa · 42.7 kmM 5.1 · Tonga · 126.7 kmM 4.7 · 69 km E of Hihifo, Tonga · 131.6 kmM 5.1 · 87 km ESE of Hihifo, Tonga · 120.6 kmM 4.5 · 114 km ESE of Hihifo, Tonga · 131.4 kmM 4.5 · 176 km SSW of Matavai, Samoa · 14.5 kmM 4.8 · 116 km N of Hihifo, Tonga · 186.0 kmM 4.5 · 113 km S of Lotofag?, Samoa · 56.1 kmM 4.7 · 77 km NNE of Hihifo, Tonga · 156.7 kmM 5.1 · 156 km SE of Hihifo, Tonga · 175.6 kmM 5.1 · 110 km ENE of Hihifo, Tonga · 79.8 kmM 4.7 · 41 km SW of Hihifo, Tonga · 228.9 kmM 4.5 · Samoa Islands region · 138.6 kmM 4.9 · 54 km E of Hihifo, Tonga · 140.5 kmM 4.7 · 87 km SE of Hihifo, Tonga · 171.5 kmM 4.5 · Samoa Islands region · 88.8 kmM 4.8 · 115 km NE of Hihifo, Tonga · 113.9 kmM 4.6 · 89 km ENE of Hihifo, Tonga · 100.3 kmM 4.6 · 157 km ESE of Hihifo, Tonga · 125.6 kmM 4.8 · 117 km NNE of Hihifo, Tonga · 151.8 kmM 4.6 · Tonga · 145.7 kmM 4.9 · 127 km ESE of Hihifo, Tonga · 140.0 kmM 4.7 · 108 km N of Hihifo, Tonga · 175.6 kmM 4.6 · 193 km ESE of Mata-Utu, Wallis and Futuna · 312.1 kmM 4.9 · 90 km E of Hihifo, Tonga · 110.2 kmM 4.6 · 67 km E of Hihifo, Tonga · 131.5 kmM 4.9 · 78 km ESE of Hihifo, Tonga · 140.0 kmM 4.7 · Tonga · 207.2 kmM 4.6 · 112 km NNE of Hihifo, Tonga · 145.9 kmM 4.6 · 50 km E of Hihifo, Tonga · 140.4 kmM 4.6 · 100 km ESE of Hihifo, Tonga · 124.8 kmM 4.6 · 134 km SSW of Lotofag?, Samoa · 65.6 kmM 4.7 · 106 km N of Hihifo, Tonga · 182.0 kmM 4.6 · 81 km ENE of Hihifo, Tonga · 110.9 kmM 4.8 · Tonga · 102.9 kmM 4.5 · 92 km ENE of Hihifo, Tonga · 96.7 kmM 4.6 · 91 km NE of Hihifo, Tonga · 122.4 kmM 4.5 · 74 km E of Hihifo, Tonga · 115.8 kmM 4.8 · 99 km ENE of Hihifo, Tonga · 91.4 kmM 4.9 · 130 km ESE of Hihifo, Tonga · 106.3 kmM 4.6 · 59 km E of Hihifo, Tonga · 131.6 kmM 4.9 · 131 km ESE of Hihifo, Tonga · 94.5 kmM 4.6 · 100 km E of Hihifo, Tonga · 94.1 kmM 5.1 · 79 km NE of Hihifo, Tonga · 136.1 kmM 4.9 · 114 km NE of Hihifo, Tonga · 113.1 kmM 4.9 · 98 km NNE of Hihifo, Tonga · 157.0 kmM 5.5 · 59 km NE of Hihifo, Tonga · 137.4 kmM 4.8 · Samoa Islands region · 68.8 kmM 5.3 · 67 km NE of Hihifo, Tonga · 132.9 kmM 4.8 · 128 km SSW of Lotofag?, Samoa · 41.8 kmM 4.5 · 140 km E of Hihifo, Tonga · 89.8 kmM 6.0 · 134 km E of Hihifo, Tonga · 62.0 kmM 4.9 · 148 km SSW of Matavai, Samoa · 19.5 kmM 4.9 · Samoa Islands region · 73.6 kmM 4.9 · 71 km NNE of Hihifo, Tonga · 144.3 kmM 4.8 · 125 km N of Hihifo, Tonga · 215.2 kmM 4.6 · 96 km E of Hihifo, Tonga · 103.2 kmM 4.8 · 98 km NE of Hihifo, Tonga · 113.8 kmM 5.0 · 107 km ENE of Hihifo, Tonga · 89.1 kmM 5.1 · 111 km NNE of Hihifo, Tonga · 146.9 kmM 4.9 · 117 km ESE of Hihifo, Tonga · 113.5 kmM 5.0 · 103 km N of Hihifo, Tonga · 172.2 kmM 4.9 · 151 km ENE of Hihifo, Tonga · 41.4 kmM 4.5 · 142 km ESE of Hihifo, Tonga · 111.0 kmM 4.7 · 159 km SSW of Matavai, Samoa · 11.0 kmM 4.7 · 148 km ENE of Hihifo, Tonga · 45.7 kmM 5.0 · 78 km ENE of Hihifo, Tonga · 117.3 kmM 4.5 · 139 km SSW of Lotofag?, Samoa · 33.1 kmM 4.6 · 71 km NNE of Hihifo, Tonga · 152.0 kmM 4.7 · 79 km E of Hihifo, Tonga · 122.9 kmM 4.9 · 73 km SE of Hihifo, Tonga · 172.7 kmM 4.6 · 71 km SSE of Hihifo, Tonga · 194.2 kmM 5.0 · 74 km E of Hihifo, Tonga · 115.5 kmM 4.6 · 111 km ESE of Hihifo, Tonga · 105.1 kmM 4.7 · 148 km ESE of Hihifo, Tonga · 135.1 kmM 4.5 · 84 km SE of Hihifo, Tonga · 151.7 kmM 4.6 · 85 km NNE of Hihifo, Tonga · 141.7 kmM 4.9 · 58 km ENE of Hihifo, Tonga · 132.8 kmM 4.8 · 176 km ESE of Hihifo, Tonga · 99.0 kmM 5.3 · 86 km NE of Hihifo, Tonga · 129.4 kmM 5.3 · 64 km NE of Hihifo, Tonga · 136.7 kmM 4.6 · 94 km NE of Hihifo, Tonga · 127.7 kmM 4.5 · 63 km NNE of Hihifo, Tonga · 153.9 kmM 4.8 · 130 km SE of Hihifo, Tonga · 154.2 kmM 4.9 · 103 km NNE of Hihifo, Tonga · 132.1 kmM 4.6 · 93 km NNE of Hihifo, Tonga · 145.6 kmM 4.6 · 93 km SE of Hihifo, Tonga · 157.2 kmM 4.6 · 142 km ESE of Hihifo, Tonga · 139.6 kmM 5.3 · 145 km ESE of Hihifo, Tonga · 137.8 kmM 4.6 · 116 km ESE of Hihifo, Tonga · 109.2 kmM 5.0 · 94 km ESE of Hihifo, Tonga · 115.9 kmM 4.6 · 166 km SSW of Matavai, Samoa · 6.5 kmM 4.7 · 94 km NNE of Hihifo, Tonga · 140.7 kmM 4.6 · 100 km NNE of Hihifo, Tonga · 156.2 kmM 5.3 · 152 km ESE of Hihifo, Tonga · 139.6 kmM 4.7 · 125 km SE of Hihifo, Tonga · 161.7 kmM 5.1 · 100 km NNE of Hihifo, Tonga · 150.2 kmM 4.6 · 108 km NNE of Hihifo, Tonga · 159.4 kmM 5.1 · 192 km S of Mata-Utu, Wallis and Futuna · 404.6 kmM 5.1 · 75 km NE of Hihifo, Tonga · 125.1 km
2009 Samoa Earthquake516 km124 Recent earthquakes

Detailed timeline

Dots represent M4+ events retained by the sequence detector. Dot size depends on magnitude.

0 h24 h7 d14 d

Sequences are descriptive groupings based on spatial and temporal proximity. Quake Pulse does not establish a causal link between every event here and does not provide earthquake forecasts.

Quake Pulse

Main-event impact

66 Felt reports · Shallow

64/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 8.12009 Samoa Earthquake18.0 km2009-09-29 17:48:10 UTCView event →
M 6.095 km NE of Hihifo, Tonga10.0 km2009-09-29 17:56:05 UTCView event →
M 5.673 km ENE of Hihifo, Tonga10.0 km2009-09-29 17:57:26 UTCView event →
M 5.431 km ENE of Hihifo, Tonga10.0 km2009-09-29 18:00:14 UTCView event →
M 5.1226 km E of Hihifo, Tonga10.0 km2009-09-29 18:01:00 UTCView event →
M 5.3Tonga10.0 km2009-09-29 18:03:22 UTCView event →
M 5.178 km E of Hihifo, Tonga10.0 km2009-09-29 18:05:37 UTCView event →
M 5.221 km N of Hihifo, Tonga10.0 km2009-09-29 18:07:24 UTCView event →
M 5.6173 km SSW of Matavai, Samoa10.0 km2009-09-29 18:08:21 UTCView event →
M 5.0113 km N of Hihifo, Tonga10.0 km2009-09-29 18:09:39 UTCView event →
M 5.171 km SE of Hihifo, Tonga10.0 km2009-09-29 18:13:02 UTCView event →
M 5.176 km E of Hihifo, Tonga10.0 km2009-09-29 18:13:34 UTCView event →
M 5.179 km ESE of Hihifo, Tonga10.0 km2009-09-29 18:14:52 UTCView event →
M 5.491 km NE of Hihifo, Tonga10.0 km2009-09-29 18:17:32 UTCView event →
M 5.6198 km SSW of Vailoatai, American Samoa10.0 km2009-09-29 18:19:35 UTCView event →
M 5.1102 km E of Hihifo, Tonga10.0 km2009-09-29 18:21:12 UTCView event →
M 5.892 km ESE of Hihifo, Tonga10.0 km2009-09-29 18:21:42 UTCView event →
M 5.760 km ESE of Hihifo, Tonga10.0 km2009-09-29 18:22:13 UTCView event →
M 4.886 km E of Hihifo, Tonga10.0 km2009-09-29 18:27:50 UTCView event →
M 5.167 km E of Hihifo, Tonga10.0 km2009-09-29 18:29:26 UTCView event →
M 4.992 km NE of Hihifo, Tonga10.0 km2009-09-29 18:31:41 UTCView event →
M 5.2124 km SSW of Lotofag?, Samoa10.0 km2009-09-29 18:34:29 UTCView event →
M 5.0Samoa Islands region10.0 km2009-09-29 18:36:30 UTCView event →
M 5.5Tonga2.3 km2009-09-29 18:40:09 UTCView event →
M 5.3135 km SE of Hihifo, Tonga10.0 km2009-09-29 18:43:12 UTCView event →
M 5.1130 km SSW of Lotofag?, Samoa10.0 km2009-09-29 18:44:31 UTCView event →
M 5.1Tonga10.0 km2009-09-29 18:46:02 UTCView event →
M 4.769 km E of Hihifo, Tonga10.0 km2009-09-29 18:51:45 UTCView event →
M 5.187 km ESE of Hihifo, Tonga10.0 km2009-09-29 18:57:58 UTCView event →
M 4.5114 km ESE of Hihifo, Tonga10.0 km2009-09-29 19:03:47 UTCView event →
M 4.5176 km SSW of Matavai, Samoa10.0 km2009-09-29 19:05:51 UTCView event →
M 4.8116 km N of Hihifo, Tonga10.0 km2009-09-29 19:11:44 UTCView event →
M 4.5113 km S of Lotofag?, Samoa10.0 km2009-09-29 19:12:03 UTCView event →
M 4.777 km NNE of Hihifo, Tonga10.0 km2009-09-29 19:13:25 UTCView event →
M 5.1156 km SE of Hihifo, Tonga10.0 km2009-09-29 19:18:52 UTCView event →
M 5.1110 km ENE of Hihifo, Tonga10.0 km2009-09-29 19:19:59 UTCView event →
M 4.741 km SW of Hihifo, Tonga10.0 km2009-09-29 19:20:49 UTCView event →
M 4.5Samoa Islands region10.0 km2009-09-29 19:28:57 UTCView event →
M 4.954 km E of Hihifo, Tonga10.0 km2009-09-29 19:33:12 UTCView event →
M 4.787 km SE of Hihifo, Tonga10.0 km2009-09-29 19:37:24 UTCView event →
M 4.5Samoa Islands region10.0 km2009-09-29 19:40:50 UTCView event →
M 4.8115 km NE of Hihifo, Tonga10.0 km2009-09-29 19:44:16 UTCView event →
M 4.689 km ENE of Hihifo, Tonga10.0 km2009-09-29 19:47:45 UTCView event →
M 4.6157 km ESE of Hihifo, Tonga10.0 km2009-09-29 19:51:50 UTCView event →
M 4.8117 km NNE of Hihifo, Tonga10.0 km2009-09-29 19:56:36 UTCView event →
M 4.6Tonga10.0 km2009-09-29 19:57:45 UTCView event →
M 4.9127 km ESE of Hihifo, Tonga10.0 km2009-09-29 19:59:40 UTCView event →
M 4.7108 km N of Hihifo, Tonga10.0 km2009-09-29 20:05:40 UTCView event →
M 4.6193 km ESE of Mata-Utu, Wallis and Futuna10.0 km2009-09-29 20:11:10 UTCView event →
M 4.990 km E of Hihifo, Tonga10.0 km2009-09-29 20:13:00 UTCView event →
M 4.667 km E of Hihifo, Tonga10.0 km2009-09-29 20:16:02 UTCView event →
M 4.978 km ESE of Hihifo, Tonga10.0 km2009-09-29 20:19:26 UTCView event →
M 4.7Tonga10.0 km2009-09-29 20:20:46 UTCView event →
M 4.6112 km NNE of Hihifo, Tonga10.0 km2009-09-29 20:24:27 UTCView event →
M 4.650 km E of Hihifo, Tonga10.0 km2009-09-29 20:31:06 UTCView event →
M 4.6100 km ESE of Hihifo, Tonga10.0 km2009-09-29 20:33:50 UTCView event →
M 4.6134 km SSW of Lotofag?, Samoa10.0 km2009-09-29 20:37:00 UTCView event →
M 4.7106 km N of Hihifo, Tonga10.0 km2009-09-29 20:40:21 UTCView event →
M 4.681 km ENE of Hihifo, Tonga10.0 km2009-09-29 20:44:44 UTCView event →
M 4.8Tonga10.0 km2009-09-29 20:47:04 UTCView event →
M 4.592 km ENE of Hihifo, Tonga10.0 km2009-09-29 20:49:07 UTCView event →
M 4.691 km NE of Hihifo, Tonga10.0 km2009-09-29 20:54:13 UTCView event →
M 4.574 km E of Hihifo, Tonga10.0 km2009-09-29 21:01:49 UTCView event →
M 4.899 km ENE of Hihifo, Tonga10.0 km2009-09-29 21:14:31 UTCView event →
M 4.9130 km ESE of Hihifo, Tonga10.0 km2009-09-29 21:29:01 UTCView event →
M 4.659 km E of Hihifo, Tonga10.0 km2009-09-29 21:31:13 UTCView event →
M 4.9131 km ESE of Hihifo, Tonga10.0 km2009-09-29 21:50:59 UTCView event →
M 4.6100 km E of Hihifo, Tonga10.0 km2009-09-29 21:52:25 UTCView event →
M 5.179 km NE of Hihifo, Tonga10.0 km2009-09-29 22:08:30 UTCView event →
M 4.9114 km NE of Hihifo, Tonga10.0 km2009-09-29 22:10:05 UTCView event →
M 4.998 km NNE of Hihifo, Tonga10.0 km2009-09-29 22:41:44 UTCView event →
M 5.559 km NE of Hihifo, Tonga10.0 km2009-09-29 23:11:51 UTCView event →
M 4.8Samoa Islands region10.0 km2009-09-29 23:31:23 UTCView event →
M 5.367 km NE of Hihifo, Tonga10.0 km2009-09-29 23:32:56 UTCView event →
M 4.8128 km SSW of Lotofag?, Samoa10.0 km2009-09-29 23:36:33 UTCView event →
M 4.5140 km E of Hihifo, Tonga10.0 km2009-09-29 23:37:40 UTCView event →
M 6.0134 km E of Hihifo, Tonga10.0 km2009-09-29 23:45:03 UTCView event →
M 4.9148 km SSW of Matavai, Samoa10.0 km2009-09-29 23:51:42 UTCView event →
M 4.9Samoa Islands region10.0 km2009-09-30 00:11:36 UTCView event →
M 4.971 km NNE of Hihifo, Tonga10.0 km2009-09-30 00:22:37 UTCView event →
M 4.8125 km N of Hihifo, Tonga10.0 km2009-09-30 00:27:50 UTCView event →
M 4.696 km E of Hihifo, Tonga10.0 km2009-09-30 00:28:34 UTCView event →
M 4.898 km NE of Hihifo, Tonga10.0 km2009-09-30 00:35:43 UTCView event →
M 5.0107 km ENE of Hihifo, Tonga10.0 km2009-09-30 00:40:52 UTCView event →
M 5.1111 km NNE of Hihifo, Tonga10.0 km2009-09-30 01:05:33 UTCView event →
M 4.9117 km ESE of Hihifo, Tonga10.0 km2009-09-30 01:05:54 UTCView event →
M 5.0103 km N of Hihifo, Tonga10.0 km2009-09-30 01:09:29 UTCView event →
M 4.9151 km ENE of Hihifo, Tonga10.0 km2009-09-30 01:16:16 UTCView event →
M 4.5142 km ESE of Hihifo, Tonga10.0 km2009-09-30 01:24:44 UTCView event →
M 4.7159 km SSW of Matavai, Samoa10.0 km2009-09-30 01:25:55 UTCView event →
M 4.7148 km ENE of Hihifo, Tonga10.0 km2009-09-30 01:30:40 UTCView event →
M 5.078 km ENE of Hihifo, Tonga10.0 km2009-09-30 01:39:50 UTCView event →
M 4.5139 km SSW of Lotofag?, Samoa10.0 km2009-09-30 01:56:46 UTCView event →
M 4.671 km NNE of Hihifo, Tonga10.0 km2009-09-30 02:03:20 UTCView event →
M 4.779 km E of Hihifo, Tonga10.0 km2009-09-30 02:11:30 UTCView event →
M 4.973 km SE of Hihifo, Tonga10.0 km2009-09-30 02:29:33 UTCView event →
M 4.671 km SSE of Hihifo, Tonga10.0 km2009-09-30 02:39:05 UTCView event →
M 5.074 km E of Hihifo, Tonga10.0 km2009-09-30 02:47:26 UTCView event →
M 4.6111 km ESE of Hihifo, Tonga10.0 km2009-09-30 02:54:10 UTCView event →
M 4.7148 km ESE of Hihifo, Tonga10.0 km2009-09-30 03:18:07 UTCView event →
M 4.584 km SE of Hihifo, Tonga10.0 km2009-09-30 03:31:14 UTCView event →
M 4.685 km NNE of Hihifo, Tonga10.0 km2009-09-30 03:37:11 UTCView event →
M 4.958 km ENE of Hihifo, Tonga10.0 km2009-09-30 04:03:11 UTCView event →
M 4.8176 km ESE of Hihifo, Tonga10.0 km2009-09-30 04:46:21 UTCView event →
M 5.386 km NE of Hihifo, Tonga10.0 km2009-09-30 05:24:51 UTCView event →
M 5.364 km NE of Hihifo, Tonga10.0 km2009-09-30 05:25:47 UTCView event →
M 4.694 km NE of Hihifo, Tonga10.0 km2009-09-30 06:06:03 UTCView event →
M 4.563 km NNE of Hihifo, Tonga10.0 km2009-09-30 06:49:29 UTCView event →
M 4.8130 km SE of Hihifo, Tonga10.0 km2009-09-30 07:13:46 UTCView event →
M 4.9103 km NNE of Hihifo, Tonga10.0 km2009-09-30 07:32:14 UTCView event →
M 4.693 km NNE of Hihifo, Tonga10.0 km2009-09-30 07:33:10 UTCView event →
M 4.693 km SE of Hihifo, Tonga10.0 km2009-09-30 08:23:11 UTCView event →
M 4.6142 km ESE of Hihifo, Tonga10.0 km2009-09-30 08:24:11 UTCView event →
M 5.3145 km ESE of Hihifo, Tonga10.0 km2009-09-30 08:24:58 UTCView event →
M 4.6116 km ESE of Hihifo, Tonga10.0 km2009-09-30 08:49:10 UTCView event →
M 5.094 km ESE of Hihifo, Tonga10.0 km2009-09-30 09:05:12 UTCView event →
M 4.6166 km SSW of Matavai, Samoa10.0 km2009-09-30 09:53:38 UTCView event →
M 4.794 km NNE of Hihifo, Tonga10.0 km2009-09-30 13:06:37 UTCView event →
M 4.6100 km NNE of Hihifo, Tonga10.0 km2009-09-30 13:31:08 UTCView event →
M 5.3152 km ESE of Hihifo, Tonga10.0 km2009-09-30 13:57:11 UTCView event →
M 4.7125 km SE of Hihifo, Tonga10.0 km2009-09-30 14:41:37 UTCView event →
M 5.1100 km NNE of Hihifo, Tonga10.0 km2009-09-30 15:20:15 UTCView event →
M 4.6108 km NNE of Hihifo, Tonga10.0 km2009-09-30 15:57:08 UTCView event →
M 5.1192 km S of Mata-Utu, Wallis and Futuna10.0 km2009-09-30 17:17:25 UTCView event →
M 5.175 km NE of Hihifo, Tonga10.0 km2009-09-30 17:47:17 UTCView event →
M 5.271 km NE of Hihifo, Tonga10.0 km2009-09-30 19:43:52 UTCView event →
M 5.0150 km SE of Hihifo, Tonga10.0 km2009-09-30 21:22:54 UTCView event →
M 4.9166 km ESE of Hihifo, Tonga10.0 km2009-10-01 00:30:22 UTCView event →
M 4.737 km ENE of Hihifo, Tonga10.0 km2009-10-01 03:41:57 UTCView event →
M 4.593 km SE of Hihifo, Tonga10.0 km2009-10-01 04:50:23 UTCView event →
M 5.885 km NE of Hihifo, Tonga14.0 km2009-10-01 06:13:33 UTCView event →
M 4.991 km NNE of Hihifo, Tonga10.0 km2009-10-01 06:31:45 UTCView event →
M 5.181 km NNE of Hihifo, Tonga10.0 km2009-10-01 07:24:07 UTCView event →
M 4.686 km ENE of Hihifo, Tonga10.0 km2009-10-01 08:39:45 UTCView event →
M 4.984 km SE of Hihifo, Tonga10.0 km2009-10-01 08:49:59 UTCView event →
M 5.0104 km NE of Hihifo, Tonga10.0 km2009-10-01 09:47:32 UTCView event →
M 5.5176 km SE of Hihifo, Tonga10.0 km2009-10-01 10:51:07 UTCView event →
M 4.5156 km SE of Hihifo, Tonga10.0 km2009-10-01 12:34:56 UTCView event →
M 4.6157 km SE of Hihifo, Tonga10.0 km2009-10-01 12:38:51 UTCView event →
M 4.596 km E of Hihifo, Tonga10.0 km2009-10-01 13:11:11 UTCView event →
M 5.154 km NE of Hihifo, Tonga10.0 km2009-10-01 13:33:43 UTCView event →
M 4.962 km NE of Hihifo, Tonga10.0 km2009-10-01 13:38:14 UTCView event →
M 4.6125 km ESE of Hihifo, Tonga10.0 km2009-10-01 15:25:36 UTCView event →
M 5.264 km SE of Hihifo, Tonga10.0 km2009-10-01 15:34:33 UTCView event →
M 4.6Tonga10.0 km2009-10-01 16:07:14 UTCView event →
M 4.784 km NNE of Hihifo, Tonga10.0 km2009-10-01 16:28:43 UTCView event →
M 4.9222 km SSE of Mata-Utu, Wallis and Futuna10.0 km2009-10-01 17:39:28 UTCView event →
M 4.7Samoa Islands region10.0 km2009-10-01 18:04:32 UTCView event →
M 5.4100 km N of Hihifo, Tonga10.0 km2009-10-01 18:18:52 UTCView event →
M 5.097 km N of Hihifo, Tonga10.0 km2009-10-01 18:40:15 UTCView event →
M 4.7113 km NE of Hihifo, Tonga10.0 km2009-10-01 18:44:52 UTCView event →
M 4.940 km NE of Hihifo, Tonga10.0 km2009-10-01 19:28:57 UTCView event →
M 5.171 km NNE of Hihifo, Tonga9.6 km2009-10-01 20:13:47 UTCView event →
M 4.698 km N of Hihifo, Tonga10.0 km2009-10-01 20:22:55 UTCView event →
M 5.174 km NNE of Hihifo, Tonga10.0 km2009-10-01 20:25:24 UTCView event →
M 5.087 km ESE of Hihifo, Tonga10.0 km2009-10-01 21:15:42 UTCView event →
M 5.286 km ESE of Hihifo, Tonga10.0 km2009-10-01 22:33:29 UTCView event →
M 6.154 km SE of Hihifo, Tonga8.0 km2009-10-02 01:07:39 UTCView event →
M 5.5Tonga10.0 km2009-10-02 01:09:26 UTCView event →
M 4.785 km S of Hihifo, Tonga10.0 km2009-10-02 01:43:38 UTCView event →
M 5.3115 km N of Hihifo, Tonga10.0 km2009-10-02 01:55:03 UTCView event →
M 5.3166 km SSW of Lotofag?, Samoa10.0 km2009-10-02 02:13:56 UTCView event →
M 4.7108 km ESE of Hihifo, Tonga10.0 km2009-10-02 02:23:21 UTCView event →
M 5.1147 km ESE of Hihifo, Tonga10.0 km2009-10-02 02:46:46 UTCView event →
M 4.754 km ESE of Hihifo, Tonga10.0 km2009-10-02 02:52:58 UTCView event →
M 4.6151 km SSE of Mata-Utu, Wallis and Futuna10.0 km2009-10-02 04:09:04 UTCView event →
M 4.540 km ESE of Hihifo, Tonga10.0 km2009-10-02 04:42:43 UTCView event →
M 4.592 km N of Hihifo, Tonga10.0 km2009-10-02 04:47:42 UTCView event →
M 4.921 km ESE of Hihifo, Tonga10.0 km2009-10-02 05:05:11 UTCView event →
M 5.073 km SE of Hihifo, Tonga10.0 km2009-10-02 06:30:38 UTCView event →
M 4.560 km SE of Hihifo, Tonga10.0 km2009-10-02 06:42:09 UTCView event →
M 4.545 km N of Hihifo, Tonga10.0 km2009-10-02 07:57:24 UTCView event →
M 4.6170 km ENE of Neiafu, Tonga10.0 km2009-10-02 08:11:37 UTCView event →
M 4.792 km NNE of Hihifo, Tonga10.0 km2009-10-02 09:42:01 UTCView event →
M 4.8112 km N of Hihifo, Tonga10.0 km2009-10-02 09:45:55 UTCView event →
M 4.889 km N of Hihifo, Tonga10.0 km2009-10-02 10:58:23 UTCView event →
M 5.0116 km NNE of Hihifo, Tonga10.0 km2009-10-02 11:09:32 UTCView event →
M 5.384 km NE of Hihifo, Tonga10.0 km2009-10-02 12:01:10 UTCView event →
M 5.4133 km ESE of Hihifo, Tonga10.0 km2009-10-02 12:08:31 UTCView event →
M 5.098 km N of Hihifo, Tonga10.0 km2009-10-02 13:08:04 UTCView event →
M 5.0146 km SE of Hihifo, Tonga10.0 km2009-10-02 17:11:19 UTCView event →
M 5.1181 km SE of Hihifo, Tonga10.0 km2009-10-02 20:03:02 UTCView event →
M 5.4156 km NE of Neiafu, Tonga10.0 km2009-10-02 22:38:37 UTCView event →
M 4.673 km NNE of Hihifo, Tonga10.0 km2009-10-03 01:54:47 UTCView event →
M 4.5110 km NNE of Hihifo, Tonga10.0 km2009-10-03 05:08:11 UTCView event →
M 4.686 km ESE of Hihifo, Tonga10.0 km2009-10-03 05:27:26 UTCView event →
M 4.6107 km N of Hihifo, Tonga10.0 km2009-10-03 07:10:04 UTCView event →
M 5.5138 km SE of Hihifo, Tonga10.0 km2009-10-03 07:16:59 UTCView event →
M 4.697 km NE of Hihifo, Tonga10.0 km2009-10-03 07:50:13 UTCView event →
M 4.9168 km SSE of Mata-Utu, Wallis and Futuna10.0 km2009-10-03 14:02:16 UTCView event →
M 4.8200 km S of Mata-Utu, Wallis and Futuna10.0 km2009-10-03 14:10:21 UTCView event →
M 4.7151 km NNE of Neiafu, Tonga10.0 km2009-10-04 01:54:56 UTCView event →
M 4.8131 km SSW of Lotofag?, Samoa10.0 km2009-10-04 03:06:37 UTCView event →
M 5.566 km ESE of Hihifo, Tonga23.0 km2009-10-04 09:10:31 UTCView event →
M 4.7105 km NE of Hihifo, Tonga10.0 km2009-10-04 12:15:43 UTCView event →
M 4.584 km NE of Hihifo, Tonga10.0 km2009-10-04 14:38:35 UTCView event →
M 5.1103 km ENE of Hihifo, Tonga10.0 km2009-10-04 17:02:26 UTCView event →
M 5.572 km SE of Hihifo, Tonga10.0 km2009-10-04 17:09:53 UTCView event →
M 4.844 km ENE of Hihifo, Tonga10.0 km2009-10-04 20:22:08 UTCView event →
M 4.5180 km ESE of Hihifo, Tonga10.0 km2009-10-05 07:12:32 UTCView event →
M 4.643 km SSE of Hihifo, Tonga10.0 km2009-10-05 08:28:48 UTCView event →
M 5.181 km SE of Hihifo, Tonga10.0 km2009-10-05 09:22:49 UTCView event →
M 4.766 km ESE of Hihifo, Tonga10.0 km2009-10-05 12:24:07 UTCView event →
M 4.8190 km SE of Hihifo, Tonga10.0 km2009-10-05 12:46:37 UTCView event →
M 4.5216 km SSW of Vailoatai, American Samoa10.0 km2009-10-05 13:03:12 UTCView event →
M 5.384 km NNE of Hihifo, Tonga10.0 km2009-10-05 18:52:43 UTCView event →
M 4.982 km NNE of Hihifo, Tonga10.0 km2009-10-05 22:45:30 UTCView event →
M 4.7181 km ESE of Hihifo, Tonga10.0 km2009-10-06 09:37:59 UTCView event →
M 4.7Samoa Islands region10.0 km2009-10-06 17:28:44 UTCView event →
M 4.581 km NNE of Hihifo, Tonga10.0 km2009-10-06 20:01:54 UTCView event →
M 4.732 km E of Hihifo, Tonga10.0 km2009-10-06 20:47:21 UTCView event →
M 4.6111 km N of Hihifo, Tonga10.0 km2009-10-06 20:55:18 UTCView event →
M 4.6136 km E of Hihifo, Tonga10.0 km2009-10-06 22:31:16 UTCView event →
M 5.091 km ENE of Hihifo, Tonga10.0 km2009-10-07 00:33:44 UTCView event →
M 4.926 km SSE of Hihifo, Tonga10.0 km2009-10-07 02:08:58 UTCView event →
M 5.0181 km ESE of Hihifo, Tonga10.0 km2009-10-07 08:59:05 UTCView event →
M 5.0214 km S of Mata-Utu, Wallis and Futuna10.0 km2009-10-07 13:10:05 UTCView event →
M 4.581 km SSE of Hihifo, Tonga10.0 km2009-10-07 20:06:03 UTCView event →
M 5.3172 km ESE of Hihifo, Tonga10.0 km2009-10-07 23:38:08 UTCView event →
M 4.5189 km ENE of Neiafu, Tonga10.0 km2009-10-08 16:27:39 UTCView event →
M 4.840 km E of Hihifo, Tonga10.0 km2009-10-08 18:10:17 UTCView event →
M 4.6140 km WNW of Pangai, Tonga224.0 km2009-10-09 04:45:19 UTCView event →
M 4.6139 km NW of Hihifo, Tonga10.0 km2009-10-09 05:18:38 UTCView event →
M 4.5Tonga10.0 km2009-10-09 11:59:43 UTCView event →
M 4.7138 km ENE of Hihifo, Tonga10.0 km2009-10-09 20:35:11 UTCView event →
M 4.997 km ENE of Hihifo, Tonga10.0 km2009-10-10 09:22:14 UTCView event →
M 5.293 km ENE of Hihifo, Tonga10.0 km2009-10-10 14:39:44 UTCView event →
M 5.985 km ENE of Hihifo, Tonga13.0 km2009-10-10 19:41:24 UTCView event →
M 4.8129 km N of Hihifo, Tonga10.0 km2009-10-11 03:11:20 UTCView event →
M 4.694 km NNE of Hihifo, Tonga10.0 km2009-10-11 07:58:19 UTCView event →
M 4.7127 km ESE of Hihifo, Tonga10.0 km2009-10-11 10:10:12 UTCView event →
M 5.1151 km NE of Neiafu, Tonga10.0 km2009-10-11 11:00:39 UTCView event →

Interpretation

Explore clusters of M4.5+ events observed around significant earthquakes. These clusters are descriptive and are not presented as earthquake predictions. Historical small-earthquake detection varies through time. Long-term comparisons are most robust at higher magnitude thresholds.

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