Sequence · 2022-11-12

M 7.0 · Observed seismic cluster · Fiji region

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 cluster14
M6+1
Analysis radius340 km
Observation window14 days
Largest secondary eventM 5.1
Quake Pulse · Strong sequence

What the sequence shows

After the M 7.0 reference event, Quake Pulse counts 4 M4+ event(s) in the first 24 hours and 8 in the first 7 days. Fourteen-day M4.5+ activity is about 1.1× the average equivalent derived from the previous year. The largest secondary event is M 1.9 below the reference event.

72/100Sequence score
Events in the previous 24 h0
In the first hour3
In the first 24 hours4
In the first 7 days8
Within 14 days13
Peak one-hour count3

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 d310Average 14-day equivalent11.9Activity / baseline ratio1.1×

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 5.1Magnitude gapM 1.9Observed duration13.2 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.

Fiji region · 340 kmInteractive 3D view of earthquakes within 340 km of Fiji region.Fiji regionM 4.9 · Fiji region · 17.5 kmM 4.5 · Fiji region · 12.9 kmM 5.1 · Fiji region · 5.8 kmM 4.6 · Fiji region · 27.1 km
Fiji region340 km4 Recent earthquakes

Detailed timeline

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

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

5 Felt reports · PAGER GREEN · Tsunami indicator · Very deep

63/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 7.0Fiji region579.0 km2022-11-12 07:09:13 UTCView event →
M 4.9Fiji region581.4 km2022-11-12 07:14:53 UTCView event →
M 4.5Fiji region568.2 km2022-11-12 07:27:17 UTCView event →
M 5.1Fiji region568.9 km2022-11-12 07:29:32 UTCView event →
M 4.6Fiji region575.9 km2022-11-12 10:52:59 UTCView event →
M 4.5216 km ENE of Levuka, Fiji551.2 km2022-11-13 08:49:29 UTCView event →
M 4.6Fiji region575.5 km2022-11-13 21:35:28 UTCView event →
M 4.7Fiji region568.4 km2022-11-14 15:19:57 UTCView event →
M 4.7Fiji region323.9 km2022-11-17 12:36:35 UTCView event →
M 4.9Fiji region11.3 km2022-11-20 15:49:30 UTCView event →
M 4.6205 km SW of Vaini, Tonga105.8 km2022-11-20 17:41:14 UTCView event →
M 4.8south of the Fiji Islands542.0 km2022-11-22 03:20:23 UTCView event →
M 4.6south of the Fiji Islands582.7 km2022-11-24 07:24:12 UTCView event →
M 5.0279 km E of Levuka, Fiji543.0 km2022-11-25 11:28:13 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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