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Sequence · 2016-12-17

M 7.9 · Observed seismic cluster · 140 km E of Kokopo, Papua New Guinea

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 cluster166
M6+3
Analysis radius484 km
Observation window14 days
Largest secondary eventM 6.3
Quake Pulse · Major sequence

What the sequence shows

After the M 7.9 reference event, Quake Pulse counts 80 M4+ event(s) in the first 24 hours and 146 in the first 7 days. Fourteen-day M4.5+ activity is about 19.5× the average equivalent derived from the previous year. The largest secondary event is M 1.6 below the reference event.

95/100Sequence score
Events in the previous 24 h0
In the first hour11
In the first 24 hours80
In the first 7 days146
Within 14 days165
Peak one-hour count11

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 d221Average 14-day equivalent8.5Activity / baseline ratio19.5×

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 6.3Magnitude gapM 1.6Observed duration13.9 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
140 km E of Kokopo, Papua New Guinea · 484 kmInteractive 3D view of earthquakes within 484 km of 140 km E of Kokopo, Papua New Guinea.140 km E of Kokopo, Papua New GuineaM 4.9 · 196 km WNW of Panguna, Papua New Guinea · 138.8 kmM 5.2 · 234 km ENE of Kokopo, Papua New Guinea · 116.1 kmM 4.9 · 137 km WNW of Panguna, Papua New Guinea · 175.5 kmM 5.6 · 143 km E of Kokopo, Papua New Guinea · 9.3 kmM 5.0 · 132 km WNW of Panguna, Papua New Guinea · 188.5 kmM 6.3 · 178 km WNW of Panguna, Papua New Guinea · 136.7 kmM 5.0 · 182 km NNE of Rabaul, Papua New Guinea · 224.5 kmM 4.6 · 118 km W of Panguna, Papua New Guinea · 210.1 kmM 4.6 · 199 km WNW of Panguna, Papua New Guinea · 115.8 kmM 4.9 · 116 km W of Panguna, Papua New Guinea · 243.1 kmM 5.0 · 146 km NW of Panguna, Papua New Guinea · 149.4 km
140 km E of Kokopo, Papua New Guinea484 km11 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

14 Felt reports · PAGER YELLOW · Tsunami indicator · Intermediate

78/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 7.9140 km E of Kokopo, Papua New Guinea94.5 km2016-12-17 10:51:10 UTCView event →
M 4.9196 km WNW of Panguna, Papua New Guinea35.5 km2016-12-17 11:07:37 UTCView event →
M 5.2234 km ENE of Kokopo, Papua New Guinea97.9 km2016-12-17 11:09:29 UTCView event →
M 4.9137 km WNW of Panguna, Papua New Guinea46.9 km2016-12-17 11:11:25 UTCView event →
M 5.6143 km E of Kokopo, Papua New Guinea82.3 km2016-12-17 11:22:39 UTCView event →
M 5.0132 km WNW of Panguna, Papua New Guinea65.6 km2016-12-17 11:25:03 UTCView event →
M 6.3178 km WNW of Panguna, Papua New Guinea8.4 km2016-12-17 11:27:36 UTCView event →
M 5.0182 km NNE of Rabaul, Papua New Guinea41.9 km2016-12-17 11:32:08 UTCView event →
M 4.6118 km W of Panguna, Papua New Guinea4.8 km2016-12-17 11:37:01 UTCView event →
M 4.6199 km WNW of Panguna, Papua New Guinea47.7 km2016-12-17 11:40:05 UTCView event →
M 4.9116 km W of Panguna, Papua New Guinea88.1 km2016-12-17 11:44:56 UTCView event →
M 5.0146 km NW of Panguna, Papua New Guinea76.1 km2016-12-17 11:45:43 UTCView event →
M 4.5153 km WNW of Panguna, Papua New Guinea69.8 km2016-12-17 11:54:07 UTCView event →
M 5.0Bougainville region, Papua New Guinea82.6 km2016-12-17 12:01:07 UTCView event →
M 4.6130 km W of Panguna, Papua New Guinea66.1 km2016-12-17 12:06:37 UTCView event →
M 4.5150 km WNW of Panguna, Papua New Guinea52.2 km2016-12-17 12:13:39 UTCView event →
M 4.5Bougainville region, Papua New Guinea98.5 km2016-12-17 12:19:22 UTCView event →
M 5.3135 km W of Panguna, Papua New Guinea48.7 km2016-12-17 12:27:28 UTCView event →
M 4.5110 km W of Panguna, Papua New Guinea94.6 km2016-12-17 12:35:36 UTCView event →
M 4.6195 km WNW of Panguna, Papua New Guinea82.8 km2016-12-17 12:39:23 UTCView event →
M 5.0206 km WNW of Panguna, Papua New Guinea53.9 km2016-12-17 12:52:40 UTCView event →
M 4.9203 km WNW of Panguna, Papua New Guinea53.8 km2016-12-17 12:58:37 UTCView event →
M 5.1168 km E of Kokopo, Papua New Guinea103.7 km2016-12-17 13:16:28 UTCView event →
M 5.4102 km W of Panguna, Papua New Guinea9.1 km2016-12-17 13:22:29 UTCView event →
M 4.8125 km WNW of Panguna, Papua New Guinea35.0 km2016-12-17 13:33:56 UTCView event →
M 5.2193 km ESE of Kokopo, Papua New Guinea57.4 km2016-12-17 13:40:44 UTCView event →
M 5.1108 km W of Panguna, Papua New Guinea10.0 km2016-12-17 13:52:22 UTCView event →
M 5.1148 km W of Panguna, Papua New Guinea10.0 km2016-12-17 13:54:50 UTCView event →
M 4.7131 km W of Panguna, Papua New Guinea10.0 km2016-12-17 14:05:30 UTCView event →
M 4.672 km W of Panguna, Papua New Guinea35.0 km2016-12-17 14:07:38 UTCView event →
M 4.9124 km W of Panguna, Papua New Guinea10.3 km2016-12-17 14:49:59 UTCView event →
M 5.2168 km WNW of Panguna, Papua New Guinea33.9 km2016-12-17 15:29:47 UTCView event →
M 4.5191 km ESE of Kokopo, Papua New Guinea89.2 km2016-12-17 15:39:10 UTCView event →
M 4.7110 km W of Panguna, Papua New Guinea10.0 km2016-12-17 16:01:47 UTCView event →
M 4.6208 km ESE of Kokopo, Papua New Guinea92.3 km2016-12-17 16:03:41 UTCView event →
M 4.7118 km WSW of Panguna, Papua New Guinea12.5 km2016-12-17 16:04:17 UTCView event →
M 5.0193 km SE of Kokopo, Papua New Guinea59.3 km2016-12-17 16:13:59 UTCView event →
M 4.583 km W of Panguna, Papua New Guinea10.0 km2016-12-17 16:39:08 UTCView event →
M 4.7116 km W of Panguna, Papua New Guinea18.4 km2016-12-17 16:45:54 UTCView event →
M 4.6119 km WNW of Panguna, Papua New Guinea75.2 km2016-12-17 16:55:10 UTCView event →
M 4.7132 km W of Panguna, Papua New Guinea13.6 km2016-12-17 17:00:05 UTCView event →
M 5.1176 km W of Panguna, Papua New Guinea21.3 km2016-12-17 17:16:50 UTCView event →
M 4.6204 km WNW of Panguna, Papua New Guinea31.2 km2016-12-17 17:19:56 UTCView event →
M 4.9138 km WNW of Panguna, Papua New Guinea38.5 km2016-12-17 17:22:33 UTCView event →
M 4.5184 km E of Kokopo, Papua New Guinea106.7 km2016-12-17 17:33:05 UTCView event →
M 4.7202 km WNW of Panguna, Papua New Guinea12.6 km2016-12-17 17:40:59 UTCView event →
M 5.1166 km W of Panguna, Papua New Guinea10.0 km2016-12-17 17:46:35 UTCView event →
M 4.5165 km ESE of Kokopo, Papua New Guinea128.0 km2016-12-17 17:59:42 UTCView event →
M 4.5159 km ESE of Kokopo, Papua New Guinea115.4 km2016-12-17 17:59:49 UTCView event →
M 5.0205 km W of Panguna, Papua New Guinea23.5 km2016-12-17 18:02:23 UTCView event →
M 5.0107 km W of Panguna, Papua New Guinea34.7 km2016-12-17 18:20:58 UTCView event →
M 4.7134 km W of Panguna, Papua New Guinea10.0 km2016-12-17 18:29:09 UTCView event →
M 4.6171 km E of Kokopo, Papua New Guinea101.7 km2016-12-17 18:45:33 UTCView event →
M 5.2126 km W of Panguna, Papua New Guinea10.0 km2016-12-17 18:54:23 UTCView event →
M 5.0111 km SW of Panguna, Papua New Guinea10.0 km2016-12-17 20:00:12 UTCView event →
M 4.6197 km W of Panguna, Papua New Guinea9.7 km2016-12-17 20:25:40 UTCView event →
M 4.588 km W of Panguna, Papua New Guinea35.0 km2016-12-17 20:50:15 UTCView event →
M 4.8New Britain region, Papua New Guinea10.0 km2016-12-17 20:57:53 UTCView event →
M 4.9159 km E of Kokopo, Papua New Guinea105.2 km2016-12-17 22:38:24 UTCView event →
M 4.6185 km ESE of Kokopo, Papua New Guinea115.0 km2016-12-17 22:48:34 UTCView event →
M 4.584 km W of Panguna, Papua New Guinea35.0 km2016-12-17 22:50:28 UTCView event →
M 5.0169 km WNW of Panguna, Papua New Guinea10.0 km2016-12-18 00:43:36 UTCView event →
M 4.5154 km E of Kokopo, Papua New Guinea114.6 km2016-12-18 00:49:05 UTCView event →
M 4.7214 km WNW of Panguna, Papua New Guinea10.0 km2016-12-18 01:07:05 UTCView event →
M 4.7185 km SE of Kokopo, Papua New Guinea10.0 km2016-12-18 04:34:35 UTCView event →
M 4.5218 km W of Panguna, Papua New Guinea10.0 km2016-12-18 04:52:34 UTCView event →
M 4.5162 km E of Kokopo, Papua New Guinea126.9 km2016-12-18 05:53:46 UTCView event →
M 4.5162 km SSE of Kokopo, Papua New Guinea10.0 km2016-12-18 06:01:28 UTCView event →
M 5.9125 km W of Panguna, Papua New Guinea12.0 km2016-12-18 06:39:42 UTCView event →
M 4.6179 km W of Panguna, Papua New Guinea10.0 km2016-12-18 06:44:24 UTCView event →
M 5.1104 km W of Panguna, Papua New Guinea10.0 km2016-12-18 07:13:03 UTCView event →
M 4.5131 km W of Panguna, Papua New Guinea10.0 km2016-12-18 07:20:30 UTCView event →
M 4.8134 km W of Panguna, Papua New Guinea10.0 km2016-12-18 07:39:11 UTCView event →
M 4.5128 km W of Panguna, Papua New Guinea10.0 km2016-12-18 08:23:20 UTCView event →
M 4.5113 km SW of Panguna, Papua New Guinea70.0 km2016-12-18 09:40:11 UTCView event →
M 5.0131 km SE of Kokopo, Papua New Guinea35.0 km2016-12-18 09:47:40 UTCView event →
M 4.6187 km W of Panguna, Papua New Guinea66.1 km2016-12-18 09:49:22 UTCView event →
M 4.791 km WSW of Panguna, Papua New Guinea10.0 km2016-12-18 09:59:37 UTCView event →
M 5.0115 km W of Panguna, Papua New Guinea10.0 km2016-12-18 10:07:02 UTCView event →
M 4.594 km W of Panguna, Papua New Guinea10.0 km2016-12-18 10:42:10 UTCView event →
M 4.5149 km NW of Panguna, Papua New Guinea35.0 km2016-12-18 10:43:47 UTCView event →
M 4.6110 km W of Panguna, Papua New Guinea38.7 km2016-12-18 12:08:55 UTCView event →
M 4.8115 km WNW of Panguna, Papua New Guinea77.3 km2016-12-18 12:10:41 UTCView event →
M 4.6161 km WNW of Panguna, Papua New Guinea10.0 km2016-12-18 12:15:08 UTCView event →
M 4.722 km W of Panguna, Papua New Guinea2.9 km2016-12-18 12:20:17 UTCView event →
M 4.7196 km SE of Kokopo, Papua New Guinea10.0 km2016-12-18 13:05:57 UTCView event →
M 5.0205 km WNW of Panguna, Papua New Guinea10.0 km2016-12-18 14:41:57 UTCView event →
M 4.5188 km W of Panguna, Papua New Guinea10.0 km2016-12-18 14:51:48 UTCView event →
M 5.0136 km W of Panguna, Papua New Guinea10.0 km2016-12-18 19:49:41 UTCView event →
M 5.0108 km W of Panguna, Papua New Guinea10.0 km2016-12-18 19:55:17 UTCView event →
M 5.492 km WNW of Panguna, Papua New Guinea32.9 km2016-12-18 19:57:53 UTCView event →
M 4.9120 km W of Panguna, Papua New Guinea10.0 km2016-12-18 21:10:08 UTCView event →
M 5.0141 km W of Panguna, Papua New Guinea10.0 km2016-12-18 22:07:51 UTCView event →
M 4.7208 km SE of Kokopo, Papua New Guinea10.0 km2016-12-18 22:49:34 UTCView event →
M 4.693 km W of Panguna, Papua New Guinea35.0 km2016-12-19 00:03:07 UTCView event →
M 4.6134 km SW of Kokopo, Papua New Guinea158.9 km2016-12-19 01:32:35 UTCView event →
M 4.6201 km SE of Kokopo, Papua New Guinea10.0 km2016-12-19 02:22:45 UTCView event →
M 5.1New Ireland region, Papua New Guinea36.9 km2016-12-19 02:50:52 UTCView event →
M 4.6210 km SE of Kokopo, Papua New Guinea36.3 km2016-12-19 02:54:52 UTCView event →
M 4.6160 km E of Kokopo, Papua New Guinea110.9 km2016-12-19 07:51:41 UTCView event →
M 4.9212 km W of Panguna, Papua New Guinea10.0 km2016-12-19 08:10:07 UTCView event →
M 5.3198 km WNW of Panguna, Papua New Guinea10.0 km2016-12-19 10:59:37 UTCView event →
M 5.1207 km WNW of Panguna, Papua New Guinea69.3 km2016-12-19 11:05:47 UTCView event →
M 4.5177 km W of Panguna, Papua New Guinea10.0 km2016-12-19 12:32:44 UTCView event →
M 4.5217 km W of Panguna, Papua New Guinea10.0 km2016-12-19 12:47:32 UTCView event →
M 4.6203 km SE of Kokopo, Papua New Guinea27.6 km2016-12-19 13:08:02 UTCView event →
M 4.7203 km SE of Kokopo, Papua New Guinea33.4 km2016-12-19 13:31:50 UTCView event →
M 4.6205 km SE of Kokopo, Papua New Guinea10.0 km2016-12-19 16:06:04 UTCView event →
M 4.5132 km E of Kokopo, Papua New Guinea108.7 km2016-12-19 17:20:57 UTCView event →
M 5.1204 km SE of Kokopo, Papua New Guinea15.6 km2016-12-19 19:03:31 UTCView event →
M 4.7186 km SE of Kokopo, Papua New Guinea23.9 km2016-12-19 19:45:46 UTCView event →
M 4.9156 km SSE of Kokopo, Papua New Guinea10.0 km2016-12-19 23:17:00 UTCView event →
M 4.8166 km ESE of Kokopo, Papua New Guinea109.9 km2016-12-20 01:57:44 UTCView event →
M 5.1183 km WSW of Panguna, Papua New Guinea10.0 km2016-12-20 04:33:46 UTCView event →
M 4.7212 km SE of Kokopo, Papua New Guinea10.0 km2016-12-20 06:07:46 UTCView event →
M 5.6216 km SE of Kokopo, Papua New Guinea10.0 km2016-12-20 06:14:41 UTCView event →
M 4.6214 km SE of Kokopo, Papua New Guinea10.0 km2016-12-20 06:52:04 UTCView event →
M 4.7162 km E of Kokopo, Papua New Guinea89.9 km2016-12-20 08:11:03 UTCView event →
M 4.5154 km NW of Panguna, Papua New Guinea105.2 km2016-12-20 10:45:59 UTCView event →
M 4.5192 km W of Panguna, Papua New Guinea10.0 km2016-12-20 11:12:41 UTCView event →
M 4.6136 km W of Panguna, Papua New Guinea26.7 km2016-12-20 13:45:48 UTCView event →
M 4.7158 km E of Kokopo, Papua New Guinea107.9 km2016-12-20 15:21:32 UTCView event →
M 4.6176 km SE of Kokopo, Papua New Guinea9.7 km2016-12-20 15:43:57 UTCView event →
M 4.9189 km E of Kokopo, Papua New Guinea97.0 km2016-12-20 17:17:06 UTCView event →
M 4.9168 km SE of Kokopo, Papua New Guinea19.2 km2016-12-20 17:20:14 UTCView event →
M 4.5156 km E of Kokopo, Papua New Guinea117.7 km2016-12-21 06:19:11 UTCView event →
M 4.6211 km SE of Kokopo, Papua New Guinea23.0 km2016-12-21 22:45:35 UTCView event →
M 5.1214 km WNW of Panguna, Papua New Guinea15.4 km2016-12-21 23:27:34 UTCView event →
M 5.1212 km SE of Kokopo, Papua New Guinea15.8 km2016-12-22 00:59:26 UTCView event →
M 4.8130 km W of Panguna, Papua New Guinea10.0 km2016-12-22 02:23:26 UTCView event →
M 4.5105 km W of Panguna, Papua New Guinea10.0 km2016-12-22 02:26:55 UTCView event →
M 4.5170 km SE of Kokopo, Papua New Guinea10.0 km2016-12-22 08:05:44 UTCView event →
M 4.699 km W of Panguna, Papua New Guinea10.0 km2016-12-22 10:48:44 UTCView event →
M 4.5195 km WSW of Panguna, Papua New Guinea10.0 km2016-12-22 16:52:12 UTCView event →
M 4.6190 km WNW of Panguna, Papua New Guinea17.1 km2016-12-22 18:16:34 UTCView event →
M 4.5193 km NW of Arawa, Papua New Guinea134.4 km2016-12-22 18:40:01 UTCView event →
M 4.9172 km WSW of Panguna, Papua New Guinea10.0 km2016-12-22 22:35:08 UTCView event →
M 4.7202 km NW of Panguna, Papua New Guinea116.3 km2016-12-23 13:42:13 UTCView event →
M 5.1171 km SE of Kokopo, Papua New Guinea14.1 km2016-12-23 14:28:30 UTCView event →
M 5.0172 km W of Panguna, Papua New Guinea10.0 km2016-12-23 21:28:06 UTCView event →
M 5.0183 km W of Panguna, Papua New Guinea20.1 km2016-12-23 22:32:20 UTCView event →
M 4.7168 km E of Kimbe, Papua New Guinea10.0 km2016-12-23 23:24:46 UTCView event →
M 4.7157 km WSW of Panguna, Papua New Guinea10.0 km2016-12-24 00:09:57 UTCView event →
M 5.0204 km SE of Kokopo, Papua New Guinea47.6 km2016-12-24 00:27:07 UTCView event →
M 6.0175 km SE of Kokopo, Papua New Guinea35.0 km2016-12-24 01:32:16 UTCView event →
M 5.8164 km ESE of Kokopo, Papua New Guinea30.0 km2016-12-24 03:58:54 UTCView event →
M 4.7171 km WSW of Panguna, Papua New Guinea10.0 km2016-12-24 04:23:07 UTCView event →
M 5.0177 km W of Panguna, Papua New Guinea10.0 km2016-12-24 12:01:46 UTCView event →
M 4.5201 km SE of Kokopo, Papua New Guinea10.0 km2016-12-24 20:29:38 UTCView event →
M 5.0178 km SE of Kokopo, Papua New Guinea14.5 km2016-12-24 22:03:21 UTCView event →
M 5.0New Britain region, Papua New Guinea10.0 km2016-12-24 23:34:07 UTCView event →
M 4.6171 km NW of Panguna, Papua New Guinea124.2 km2016-12-25 17:35:49 UTCView event →
M 4.5195 km SE of Kokopo, Papua New Guinea10.0 km2016-12-26 01:42:00 UTCView event →
M 4.7180 km WNW of Panguna, Papua New Guinea22.2 km2016-12-26 19:07:50 UTCView event →
M 4.645 km N of Rabaul, Papua New Guinea10.0 km2016-12-27 13:15:25 UTCView event →
M 4.643 km N of Rabaul, Papua New Guinea10.0 km2016-12-27 13:25:25 UTCView event →
M 4.645 km N of Rabaul, Papua New Guinea16.7 km2016-12-27 14:30:42 UTCView event →
M 4.552 km NW of Rabaul, Papua New Guinea10.0 km2016-12-27 15:16:41 UTCView event →
M 5.150 km N of Rabaul, Papua New Guinea10.0 km2016-12-27 15:25:28 UTCView event →
M 4.717 km NNE of Rabaul, Papua New Guinea36.4 km2016-12-27 16:07:22 UTCView event →
M 4.637 km NNE of Rabaul, Papua New Guinea17.1 km2016-12-27 16:08:20 UTCView event →
M 5.4210 km WNW of Panguna, Papua New Guinea10.0 km2016-12-27 22:38:04 UTCView event →
M 4.6134 km W of Panguna, Papua New Guinea23.7 km2016-12-29 16:32:54 UTCView event →
M 4.9145 km SE of Kokopo, Papua New Guinea21.7 km2016-12-29 17:33:14 UTCView event →
M 5.0146 km SE of Kokopo, Papua New Guinea19.1 km2016-12-30 19:48:39 UTCView event →
M 4.5220 km WNW of Panguna, Papua New Guinea10.0 km2016-12-31 08:10:38 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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