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Sequence · 2011-07-06

M 7.6 · Observed seismic cluster · Kermadec Islands 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 cluster154
M6+3
Analysis radius436 km
Observation window14 days
Largest secondary eventM 6.0
Quake Pulse · Major sequence

What the sequence shows

After the M 7.6 reference event, Quake Pulse counts 41 M4+ event(s) in the first 24 hours and 135 in the first 7 days. Fourteen-day M4.5+ activity is about 25.0× the average equivalent derived from the previous year. The largest secondary event is M 1.6 below the reference event.

90/100Sequence score
Events in the previous 24 h0
In the first hour3
In the first 24 hours41
In the first 7 days135
Within 14 days156
Peak one-hour count6

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 d163Average 14-day equivalent6.3Activity / baseline ratio25.0×

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 6.0Magnitude gapM 1.6Observed duration13.7 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
Kermadec Islands region · 436 kmInteractive 3D view of earthquakes within 436 km of Kermadec Islands region.Kermadec Islands regionM 4.5 · Kermadec Islands region · 25.2 kmM 4.9 · Kermadec Islands region · 41.0 kmM 4.6 · Kermadec Islands region · 36.3 kmM 4.8 · Kermadec Islands region · 78.7 kmM 4.9 · Kermadec Islands region · 36.3 kmM 5.6 · Kermadec Islands region · 9.3 kmM 4.9 · Kermadec Islands region · 67.2 kmM 4.7 · Kermadec Islands region · 32.2 kmM 5.3 · Kermadec Islands region · 19.5 kmM 4.8 · Kermadec Islands region · 75.7 kmM 4.9 · Kermadec Islands region · 12.2 kmM 4.5 · Kermadec Islands region · 30.4 kmM 4.9 · Kermadec Islands region · 95.4 kmM 4.9 · Kermadec Islands region · 79.7 kmM 4.7 · Kermadec Islands region · 9.7 kmM 4.6 · Kermadec Islands region · 26.3 kmM 4.8 · Kermadec Islands region · 40.6 kmM 5.0 · Kermadec Islands region · 11.8 kmM 4.9 · Kermadec Islands region · 17.0 kmM 4.5 · Kermadec Islands region · 33.0 kmM 4.8 · Kermadec Islands region · 25.1 kmM 4.9 · Kermadec Islands region · 50.4 kmM 5.0 · Kermadec Islands region · 41.7 kmM 5.2 · Kermadec Islands region · 64.2 kmM 5.0 · Kermadec Islands region · 39.2 kmM 4.6 · Kermadec Islands region · 38.0 kmM 4.8 · Kermadec Islands region · 33.4 kmM 5.1 · Kermadec Islands region · 14.2 kmM 5.0 · Kermadec Islands region · 65.9 kmM 5.0 · Kermadec Islands region · 43.5 kmM 4.9 · Kermadec Islands region · 24.3 kmM 5.5 · Kermadec Islands region · 38.9 kmM 4.7 · Kermadec Islands region · 31.3 kmM 5.7 · Kermadec Islands region · 72.0 kmM 5.0 · Kermadec Islands region · 60.3 kmM 5.8 · Kermadec Islands region · 72.4 kmM 5.3 · Kermadec Islands, New Zealand · 90.1 kmM 4.9 · Kermadec Islands region · 52.9 kmM 4.8 · Kermadec Islands region · 45.0 kmM 4.6 · Kermadec Islands region · 51.3 kmM 4.9 · Kermadec Islands region · 167.1 km
Kermadec Islands region436 km41 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

17 Felt reports · Shallow

60/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 7.6Kermadec Islands region17.0 km2011-07-06 19:03:18 UTCView event →
M 4.5Kermadec Islands region10.0 km2011-07-06 19:27:30 UTCView event →
M 4.9Kermadec Islands region10.0 km2011-07-06 19:30:04 UTCView event →
M 4.6Kermadec Islands region10.0 km2011-07-06 20:01:45 UTCView event →
M 4.8Kermadec Islands region10.0 km2011-07-06 20:12:20 UTCView event →
M 4.9Kermadec Islands region23.1 km2011-07-06 20:26:58 UTCView event →
M 5.6Kermadec Islands region10.0 km2011-07-06 20:35:38 UTCView event →
M 4.9Kermadec Islands region10.0 km2011-07-06 20:52:16 UTCView event →
M 4.7Kermadec Islands region10.0 km2011-07-06 20:57:56 UTCView event →
M 5.3Kermadec Islands region10.0 km2011-07-06 21:04:01 UTCView event →
M 4.8Kermadec Islands region10.0 km2011-07-06 21:24:03 UTCView event →
M 4.9Kermadec Islands region35.1 km2011-07-06 21:25:06 UTCView event →
M 4.5Kermadec Islands region10.0 km2011-07-06 22:04:07 UTCView event →
M 4.9Kermadec Islands region10.0 km2011-07-06 22:15:36 UTCView event →
M 4.9Kermadec Islands region10.0 km2011-07-06 22:31:23 UTCView event →
M 4.7Kermadec Islands region10.0 km2011-07-06 22:34:31 UTCView event →
M 4.6Kermadec Islands region10.0 km2011-07-06 22:38:03 UTCView event →
M 4.8Kermadec Islands region10.0 km2011-07-06 22:54:43 UTCView event →
M 5.0Kermadec Islands region10.0 km2011-07-06 23:03:29 UTCView event →
M 4.9Kermadec Islands region10.0 km2011-07-06 23:09:55 UTCView event →
M 4.5Kermadec Islands region10.0 km2011-07-06 23:29:36 UTCView event →
M 4.8Kermadec Islands region10.0 km2011-07-06 23:48:07 UTCView event →
M 4.9Kermadec Islands region10.0 km2011-07-07 00:10:43 UTCView event →
M 5.0Kermadec Islands region36.5 km2011-07-07 00:14:20 UTCView event →
M 5.2Kermadec Islands region10.0 km2011-07-07 00:33:33 UTCView event →
M 5.0Kermadec Islands region10.0 km2011-07-07 00:51:00 UTCView event →
M 4.6Kermadec Islands region10.0 km2011-07-07 00:58:36 UTCView event →
M 4.8Kermadec Islands region10.0 km2011-07-07 01:15:58 UTCView event →
M 5.1Kermadec Islands region10.0 km2011-07-07 01:26:36 UTCView event →
M 5.0Kermadec Islands region32.2 km2011-07-07 02:10:22 UTCView event →
M 5.0Kermadec Islands region21.5 km2011-07-07 03:41:39 UTCView event →
M 4.9Kermadec Islands region10.0 km2011-07-07 04:20:01 UTCView event →
M 5.5Kermadec Islands region12.0 km2011-07-07 04:40:15 UTCView event →
M 4.7Kermadec Islands region10.0 km2011-07-07 06:05:19 UTCView event →
M 5.7Kermadec Islands region10.0 km2011-07-07 09:10:50 UTCView event →
M 5.0Kermadec Islands region10.0 km2011-07-07 09:14:49 UTCView event →
M 5.8Kermadec Islands region30.8 km2011-07-07 09:29:59 UTCView event →
M 5.3Kermadec Islands, New Zealand10.0 km2011-07-07 13:07:20 UTCView event →
M 4.9Kermadec Islands region23.2 km2011-07-07 16:19:11 UTCView event →
M 4.8Kermadec Islands region10.0 km2011-07-07 16:46:33 UTCView event →
M 4.6Kermadec Islands region10.0 km2011-07-07 17:11:08 UTCView event →
M 4.9Kermadec Islands region10.0 km2011-07-07 18:08:27 UTCView event →
M 5.3Kermadec Islands region10.0 km2011-07-07 19:55:52 UTCView event →
M 5.1Kermadec Islands region9.2 km2011-07-07 21:03:35 UTCView event →
M 5.1Kermadec Islands region10.0 km2011-07-07 21:49:15 UTCView event →
M 5.0Kermadec Islands region10.0 km2011-07-07 21:50:02 UTCView event →
M 4.7Kermadec Islands region10.0 km2011-07-07 21:53:26 UTCView event →
M 4.8south of the Kermadec Islands37.4 km2011-07-07 22:35:03 UTCView event →
M 5.3Kermadec Islands region10.0 km2011-07-07 23:27:07 UTCView event →
M 5.0Kermadec Islands region10.0 km2011-07-08 03:31:42 UTCView event →
M 5.4Kermadec Islands region20.7 km2011-07-08 03:40:23 UTCView event →
M 4.5Kermadec Islands region10.0 km2011-07-08 04:35:09 UTCView event →
M 4.9Kermadec Islands region10.0 km2011-07-08 05:12:05 UTCView event →
M 4.6Kermadec Islands region10.0 km2011-07-08 08:13:20 UTCView event →
M 4.5Kermadec Islands region10.0 km2011-07-08 09:00:48 UTCView event →
M 4.9Kermadec Islands region10.0 km2011-07-08 09:09:14 UTCView event →
M 4.8Kermadec Islands region10.0 km2011-07-08 09:19:03 UTCView event →
M 4.7Kermadec Islands region10.0 km2011-07-08 12:50:19 UTCView event →
M 4.8Kermadec Islands region10.0 km2011-07-08 16:47:17 UTCView event →
M 5.0Kermadec Islands region10.0 km2011-07-08 20:29:11 UTCView event →
M 5.0Kermadec Islands region10.0 km2011-07-08 20:36:41 UTCView event →
M 4.6Kermadec Islands region3.0 km2011-07-08 21:02:43 UTCView event →
M 4.8Kermadec Islands region13.9 km2011-07-08 22:23:01 UTCView event →
M 4.7Kermadec Islands region10.0 km2011-07-08 23:01:30 UTCView event →
M 4.9Kermadec Islands region10.0 km2011-07-08 23:54:08 UTCView event →
M 5.4Kermadec Islands region10.0 km2011-07-09 00:53:15 UTCView event →
M 4.5Kermadec Islands region10.0 km2011-07-09 01:09:35 UTCView event →
M 4.5Kermadec Islands region10.0 km2011-07-09 01:26:33 UTCView event →
M 5.1Kermadec Islands region17.8 km2011-07-09 01:53:56 UTCView event →
M 4.6Kermadec Islands region10.0 km2011-07-09 02:06:51 UTCView event →
M 4.6Kermadec Islands region10.0 km2011-07-09 04:38:00 UTCView event →
M 4.5Kermadec Islands region10.0 km2011-07-09 07:14:02 UTCView event →
M 4.9Kermadec Islands region10.0 km2011-07-09 12:20:47 UTCView event →
M 5.1Kermadec Islands region10.0 km2011-07-09 12:54:20 UTCView event →
M 5.9Kermadec Islands, New Zealand19.0 km2011-07-09 13:54:23 UTCView event →
M 5.3Kermadec Islands region10.0 km2011-07-09 14:00:15 UTCView event →
M 5.2Kermadec Islands, New Zealand10.0 km2011-07-09 14:12:17 UTCView event →
M 4.8Kermadec Islands region10.0 km2011-07-09 14:39:20 UTCView event →
M 6.0Kermadec Islands, New Zealand14.0 km2011-07-09 15:02:27 UTCView event →
M 4.8Kermadec Islands region10.0 km2011-07-09 15:17:10 UTCView event →
M 5.3Kermadec Islands region10.0 km2011-07-09 15:25:29 UTCView event →
M 4.5Kermadec Islands region10.0 km2011-07-09 16:05:28 UTCView event →
M 5.4Kermadec Islands, New Zealand10.0 km2011-07-09 16:17:31 UTCView event →
M 5.1Kermadec Islands region10.0 km2011-07-09 16:27:12 UTCView event →
M 4.9Kermadec Islands region11.0 km2011-07-09 17:20:02 UTCView event →
M 5.2Kermadec Islands region10.8 km2011-07-09 18:18:38 UTCView event →
M 5.0Kermadec Islands, New Zealand10.0 km2011-07-09 19:34:36 UTCView event →
M 6.0Kermadec Islands, New Zealand15.2 km2011-07-09 19:35:18 UTCView event →
M 5.1Kermadec Islands, New Zealand10.0 km2011-07-09 20:09:43 UTCView event →
M 4.5south of the Kermadec Islands10.0 km2011-07-09 20:42:29 UTCView event →
M 5.1Kermadec Islands region10.0 km2011-07-09 20:57:08 UTCView event →
M 4.5Kermadec Islands region10.0 km2011-07-09 21:18:44 UTCView event →
M 5.1Kermadec Islands, New Zealand10.0 km2011-07-09 22:21:02 UTCView event →
M 4.5Kermadec Islands region10.0 km2011-07-09 23:26:57 UTCView event →
M 4.6Kermadec Islands region5.7 km2011-07-09 23:49:21 UTCView event →
M 4.5Kermadec Islands region10.0 km2011-07-10 06:03:43 UTCView event →
M 5.4south of the Kermadec Islands10.0 km2011-07-10 06:57:24 UTCView event →
M 4.9south of the Kermadec Islands10.0 km2011-07-10 08:43:20 UTCView event →
M 4.8south of the Kermadec Islands13.7 km2011-07-10 09:11:11 UTCView event →
M 5.0south of the Kermadec Islands10.0 km2011-07-10 12:07:57 UTCView event →
M 5.2Kermadec Islands region10.0 km2011-07-10 12:51:27 UTCView event →
M 4.6south of the Kermadec Islands10.0 km2011-07-10 13:48:16 UTCView event →
M 4.7Kermadec Islands region10.0 km2011-07-10 17:20:55 UTCView event →
M 5.0Kermadec Islands region10.0 km2011-07-10 17:48:34 UTCView event →
M 4.8Kermadec Islands region10.0 km2011-07-10 21:27:08 UTCView event →
M 4.5Kermadec Islands region10.0 km2011-07-10 23:26:47 UTCView event →
M 4.8south of the Kermadec Islands10.0 km2011-07-11 03:13:23 UTCView event →
M 4.7south of the Kermadec Islands10.0 km2011-07-11 03:50:53 UTCView event →
M 4.5Kermadec Islands region10.0 km2011-07-11 04:09:23 UTCView event →
M 4.9Kermadec Islands region10.0 km2011-07-11 05:38:02 UTCView event →
M 5.4Kermadec Islands, New Zealand10.0 km2011-07-11 06:37:19 UTCView event →
M 4.8Kermadec Islands region10.0 km2011-07-11 06:51:03 UTCView event →
M 5.2Kermadec Islands region10.0 km2011-07-11 06:52:10 UTCView event →
M 5.9Kermadec Islands region11.0 km2011-07-11 07:15:43 UTCView event →
M 5.1Kermadec Islands region10.0 km2011-07-11 07:43:28 UTCView event →
M 4.8south of the Kermadec Islands10.0 km2011-07-11 09:12:39 UTCView event →
M 4.7Kermadec Islands region10.0 km2011-07-11 09:35:18 UTCView event →
M 4.6Kermadec Islands region10.0 km2011-07-11 10:37:34 UTCView event →
M 4.7south of the Kermadec Islands10.0 km2011-07-11 11:55:52 UTCView event →
M 4.6south of the Kermadec Islands10.0 km2011-07-11 12:42:36 UTCView event →
M 5.1Kermadec Islands region24.5 km2011-07-11 13:39:43 UTCView event →
M 4.7south of the Kermadec Islands52.9 km2011-07-11 14:44:19 UTCView event →
M 4.6Kermadec Islands region10.0 km2011-07-11 15:17:51 UTCView event →
M 4.9Kermadec Islands region10.0 km2011-07-11 18:20:27 UTCView event →
M 4.7Kermadec Islands region10.0 km2011-07-11 19:32:20 UTCView event →
M 5.1Kermadec Islands region10.0 km2011-07-11 21:51:49 UTCView event →
M 4.5Kermadec Islands region10.0 km2011-07-11 22:14:11 UTCView event →
M 5.0Kermadec Islands region10.0 km2011-07-12 06:59:29 UTCView event →
M 4.6south of the Kermadec Islands333.9 km2011-07-12 09:14:45 UTCView event →
M 4.5Kermadec Islands region10.0 km2011-07-12 14:20:09 UTCView event →
M 4.8Kermadec Islands region10.0 km2011-07-12 17:15:57 UTCView event →
M 4.9Kermadec Islands region10.0 km2011-07-12 20:33:02 UTCView event →
M 5.0Kermadec Islands region10.0 km2011-07-12 20:51:58 UTCView event →
M 5.4Kermadec Islands region10.0 km2011-07-13 05:06:47 UTCView event →
M 4.5south of the Kermadec Islands35.0 km2011-07-13 15:03:41 UTCView event →
M 5.0south of the Kermadec Islands18.2 km2011-07-13 15:27:14 UTCView event →
M 4.8Kermadec Islands region10.0 km2011-07-13 21:04:05 UTCView event →
M 4.5south of the Kermadec Islands10.0 km2011-07-14 10:31:06 UTCView event →
M 5.0south of the Kermadec Islands35.0 km2011-07-14 13:18:53 UTCView event →
M 5.4Kermadec Islands region10.0 km2011-07-15 05:50:25 UTCView event →
M 4.9Kermadec Islands region10.0 km2011-07-15 08:42:06 UTCView event →
M 4.6Kermadec Islands region10.0 km2011-07-15 11:55:06 UTCView event →
M 4.9Kermadec Islands region10.0 km2011-07-15 16:14:12 UTCView event →
M 5.0Kermadec Islands region10.0 km2011-07-15 21:45:01 UTCView event →
M 4.7Kermadec Islands region10.0 km2011-07-16 08:31:02 UTCView event →
M 5.2Kermadec Islands region10.0 km2011-07-16 21:54:05 UTCView event →
M 4.8Kermadec Islands region10.0 km2011-07-17 07:08:02 UTCView event →
M 4.6Kermadec Islands region10.0 km2011-07-17 09:07:01 UTCView event →
M 4.5Kermadec Islands region10.0 km2011-07-17 23:10:38 UTCView event →
M 4.9Kermadec Islands, New Zealand67.0 km2011-07-18 08:24:17 UTCView event →
M 5.0Kermadec Islands region10.0 km2011-07-18 16:03:44 UTCView event →
M 5.3Kermadec Islands, New Zealand17.4 km2011-07-19 02:20:35 UTCView event →
M 4.7Kermadec Islands region10.0 km2011-07-19 10:26:12 UTCView event →
M 4.5south of the Kermadec Islands35.0 km2011-07-19 14:44:22 UTCView event →
M 4.6Kermadec Islands, New Zealand10.0 km2011-07-19 21:35:42 UTCView event →
M 4.6Kermadec Islands region10.0 km2011-07-20 09:47:06 UTCView event →
M 5.2Kermadec Islands region10.0 km2011-07-20 11:54:48 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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