Updated 2016-11-10 02:18:30 UTC

M 4.9 — 97 km ENE of Hihifo, Tonga

Magnitude 4.9, depth 10.0 km, 2009-10-10 09:22:14 UTC.

MagnitudeM 4.9
Depth10.0 km
Felt reports—
Statusreviewed
TsunamiNo
Quake Pulse Activity Index

Activity trend

A high index means recent activity is high relative to the selected historical baseline. It does not mean that a larger earthquake is about to occur.

Quake Pulse Activity Index39/100Normal
Current 30 days24
Historical monthly median27.0
Historical percentileP39
M5+ in 30 days3
M6+ in 30 days0
Activity trendbelow the historical median (-11%)
Baseline months: 60Last calculation: 2026-09-03 06:17:39How the index works →
Quake Pulse

What to know

A short factual reading of this event from the available observations.

  • Magnitude M 4.9 at 10.0 km depth.
Counts describe detected earthquakes and are not a forecast or hazard assessment.
Quake Pulse

Within the Quake Pulse database

Long-term comparisons are more robust at higher magnitudes because small-earthquake detection capability has changed over time.

Magnitude rank in database#48,165
Magnitude rank in country#2,255
M4.5+ within 250 km, ±15 days246
Sequence context231 events →
Quake Pulse

Impact and context

Descriptive indicators available for this event and its surroundings.

13/100Limited context
Felt reports—
Max felt intensity (CDI)—
Instrumental intensity (MMI)—
PAGER alertNot available
Tsunami indicator—
USGS significance369
Depth contextShallow
Nearby major city—
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These indicators describe data available after detection. They are neither a forecast nor a direct estimate of damage or individual risk.

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Around this epicenter

Nearby events observed around this epicenter. Spatial proximity does not necessarily mean they belong to the same sequence.

M 4.9 · 97 km ENE of Hihifo, Tonga · 100 kmInteractive 3D view of earthquakes within 100 km of M 4.9 · 97 km ENE of Hihifo, Tonga.M 4.9 · 97 km ENE of Hihifo, TongaM 4.9 · 120 km NE of Hihifo, Tonga · 52.6 kmM 5.0 · 68 km E of Hihifo, Tonga · 49.6 kmM 4.5 · 91 km N of Hihifo, Tonga · 98.9 kmM 4.8 · 57 km ESE of Hihifo, Tonga · 68.9 kmM 5.0 · 62 km NNE of Hihifo, Tonga · 72.2 kmM 5.8 · 49 km N of Hihifo, Tonga · 89.0 kmM 4.8 · 78 km NE of Hihifo, Tonga · 48.3 kmM 5.0 · 88 km NE of Hihifo, Tonga · 40.6 kmM 5.5 · 47 km ENE of Hihifo, Tonga · 50.7 kmM 4.9 · 44 km NE of Hihifo, Tonga · 62.6 kmM 4.8 · Tonga · 84.4 kmM 4.5 · 55 km NNE of Hihifo, Tonga · 79.7 kmM 4.9 · 94 km NE of Hihifo, Tonga · 59.2 kmM 4.7 · 80 km E of Hihifo, Tonga · 26.5 kmM 4.9 · 78 km E of Hihifo, Tonga · 41.3 kmM 4.7 · 47 km E of Hihifo, Tonga · 52.9 kmM 4.6 · 75 km ESE of Hihifo, Tonga · 73.2 kmM 4.6 · 100 km NNE of Hihifo, Tonga · 75.1 kmM 4.6 · 65 km ESE of Hihifo, Tonga · 77.0 kmM 4.6 · 183 km E of Hihifo, Tonga · 92.1 kmM 4.5 · 109 km NNE of Hihifo, Tonga · 71.3 kmM 4.9 · 162 km E of Hihifo, Tonga · 70.0 kmM 4.7 · 67 km E of Hihifo, Tonga · 45.5 kmM 6.0 · 159 km SSW of Lotofag?, Samoa · 79.3 kmM 5.1 · Tonga · 65.0 kmM 5.8 · 104 km ENE of Hihifo, Tonga · 24.7 kmM 4.6 · 114 km NE of Hihifo, Tonga · 68.0 kmM 5.4 · 73 km SE of Hihifo, Tonga · 89.3 kmM 4.5 · 89 km SE of Hihifo, Tonga · 93.6 kmM 5.0 · 92 km NE of Hihifo, Tonga · 43.1 kmM 4.7 · 129 km NE of Hihifo, Tonga · 65.6 kmM 4.8 · 67 km NNE of Hihifo, Tonga · 78.6 kmM 4.5 · 129 km NE of Hihifo, Tonga · 71.9 kmM 4.7 · 127 km ESE of Hihifo, Tonga · 90.0 kmM 4.6 · 94 km NNE of Hihifo, Tonga · 86.8 kmM 5.9 · 85 km ENE of Hihifo, Tonga · 13.5 kmM 5.2 · 93 km ENE of Hihifo, Tonga · 10.6 kmM 4.7 · 138 km ENE of Hihifo, Tonga · 44.3 kmM 4.5 · Tonga · 58.1 kmM 4.8 · 40 km E of Hihifo, Tonga · 60.2 kmM 4.9 · 26 km SSE of Hihifo, Tonga · 98.6 kmM 5.0 · 91 km ENE of Hihifo, Tonga · 21.1 kmM 4.6 · 136 km E of Hihifo, Tonga · 62.1 kmM 4.7 · 32 km E of Hihifo, Tonga · 69.0 kmM 4.5 · 81 km NNE of Hihifo, Tonga · 72.6 kmM 4.7 · Samoa Islands region · 55.3 kmM 4.9 · 82 km NNE of Hihifo, Tonga · 60.0 kmM 5.3 · 84 km NNE of Hihifo, Tonga · 89.1 kmM 4.7 · 66 km ESE of Hihifo, Tonga · 69.7 kmM 5.1 · 81 km SE of Hihifo, Tonga · 93.0 kmM 4.8 · 44 km ENE of Hihifo, Tonga · 53.1 kmM 5.5 · 72 km SE of Hihifo, Tonga · 84.5 kmM 5.1 · 103 km ENE of Hihifo, Tonga · 5.4 kmM 4.5 · 84 km NE of Hihifo, Tonga · 31.3 kmM 4.7 · 105 km NE of Hihifo, Tonga · 50.5 kmM 5.5 · 66 km ESE of Hihifo, Tonga · 71.7 kmM 4.8 · 131 km SSW of Lotofag?, Samoa · 97.3 kmM 4.6 · 97 km NE of Hihifo, Tonga · 59.3 kmM 4.6 · 86 km ESE of Hihifo, Tonga · 76.0 kmM 4.6 · 73 km NNE of Hihifo, Tonga · 86.1 kmM 5.0 · 98 km N of Hihifo, Tonga · 98.8 kmM 5.4 · 133 km ESE of Hihifo, Tonga · 95.8 kmM 5.3 · 84 km NE of Hihifo, Tonga · 31.5 kmM 4.7 · 92 km NNE of Hihifo, Tonga · 93.3 kmM 4.5 · 45 km N of Hihifo, Tonga · 87.6 kmM 4.5 · 60 km SE of Hihifo, Tonga · 97.0 kmM 4.9 · 21 km ESE of Hihifo, Tonga · 83.9 kmM 4.5 · 40 km ESE of Hihifo, Tonga · 76.2 kmM 4.7 · 54 km ESE of Hihifo, Tonga · 71.0 kmM 4.7 · 108 km ESE of Hihifo, Tonga · 90.4 kmM 5.3 · 166 km SSW of Lotofag?, Samoa · 77.3 kmM 5.5 · Tonga · 86.8 kmM 6.1 · 54 km SE of Hihifo, Tonga · 94.6 kmM 5.2 · 86 km ESE of Hihifo, Tonga · 81.3 kmM 5.0 · 87 km ESE of Hihifo, Tonga · 79.6 kmM 5.1 · 74 km NNE of Hihifo, Tonga · 67.5 kmM 5.1 · 71 km NNE of Hihifo, Tonga · 64.4 kmM 4.9 · 40 km NE of Hihifo, Tonga · 67.0 kmM 4.7 · 113 km NE of Hihifo, Tonga · 44.7 kmM 4.7 · Samoa Islands region · 65.9 kmM 4.7 · 84 km NNE of Hihifo, Tonga · 83.1 kmM 4.6 · Tonga · 91.7 kmM 5.2 · 64 km SE of Hihifo, Tonga · 87.9 kmM 4.6 · 125 km ESE of Hihifo, Tonga · 75.3 kmM 4.9 · 62 km NE of Hihifo, Tonga · 54.6 kmM 5.1 · 54 km NE of Hihifo, Tonga · 55.0 kmM 4.5 · 96 km E of Hihifo, Tonga · 32.5 kmM 5.0 · 104 km NE of Hihifo, Tonga · 59.2 kmM 4.9 · 84 km SE of Hihifo, Tonga · 96.1 kmM 4.6 · 86 km ENE of Hihifo, Tonga · 12.4 kmM 5.1 · 81 km NNE of Hihifo, Tonga · 64.6 kmM 4.9 · 91 km NNE of Hihifo, Tonga · 67.0 kmM 5.8 · 85 km NE of Hihifo, Tonga · 45.1 kmM 4.7 · 37 km ENE of Hihifo, Tonga · 60.6 kmM 5.2 · 71 km NE of Hihifo, Tonga · 47.5 kmM 5.1 · 75 km NE of Hihifo, Tonga · 38.5 kmM 4.6 · 108 km NNE of Hihifo, Tonga · 92.9 kmM 5.1 · 100 km NNE of Hihifo, Tonga · 80.8 kmM 4.6 · 100 km NNE of Hihifo, Tonga · 86.2 kmM 4.7 · 94 km NNE of Hihifo, Tonga · 68.4 km
M 4.9 · 97 km ENE of Hihifo, Tonga100 km100 Recent earthquakes

Descriptive map centered on the epicenter; it does not represent felt intensity or risk.

Sequence context

This event belongs to a sequence detected by Quake Pulse.

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Nearby events · 100 km

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USGS data evolution

Earthquake parameters can be revised after first publication. This timeline shows versions retained by Quake Pulse.

Revisions1
Magnitude change+0.0M 4.9 → M 4.9
Depth change+0.0 km
Last update5214718 min
2016-11-10 02:18:30 UTC2016-11-10 02:18:30 UTC

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Interpret the numbers

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