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Sequence · 2019-06-15

M 7.3 · Observed seismic cluster · Kermadec Islands, New Zealand

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 cluster114
M6+6
Analysis radius388 km
Observation window14 days
Largest secondary eventM 6.4
Quake Pulse · Major sequence

What the sequence shows

After the M 7.3 reference event, Quake Pulse counts 22 M4+ event(s) in the first 24 hours and 93 in the first 7 days. Fourteen-day M4.5+ activity is about 14.4× the average equivalent derived from the previous year. The largest secondary event is M 0.9 below the reference event.

96/100Sequence score
Events in the previous 24 h1
In the first hour3
In the first 24 hours22
In the first 7 days93
Within 14 days116
Peak one-hour count5

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 d210Average 14-day equivalent8.1Activity / baseline ratio14.4×

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 6.4Magnitude gapM 0.9Observed duration12.9 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
Kermadec Islands, New Zealand · 388 kmInteractive 3D view of earthquakes within 388 km of Kermadec Islands, New Zealand.Kermadec Islands, New ZealandM 5.2 · Kermadec Islands, New Zealand · 18.8 kmM 5.3 · Kermadec Islands, New Zealand · 8.3 kmM 4.5 · Kermadec Islands, New Zealand · 6.5 kmM 5.0 · Kermadec Islands, New Zealand · 5.3 kmM 4.5 · Kermadec Islands, New Zealand · 4.6 kmM 4.6 · Kermadec Islands, New Zealand · 29.1 kmM 4.5 · Kermadec Islands region · 131.2 kmM 4.6 · Kermadec Islands, New Zealand · 20.2 kmM 5.1 · Kermadec Islands, New Zealand · 4.2 kmM 4.5 · Kermadec Islands, New Zealand · 42.7 kmM 5.5 · Kermadec Islands, New Zealand · 5.8 kmM 4.7 · Kermadec Islands, New Zealand · 22.1 kmM 6.3 · Kermadec Islands region · 39.7 kmM 4.9 · Kermadec Islands region · 55.3 kmM 4.6 · Kermadec Islands, New Zealand · 65.6 kmM 4.8 · Kermadec Islands region · 57.2 kmM 5.6 · Kermadec Islands region · 116.5 kmM 4.6 · Kermadec Islands region · 126.4 kmM 5.0 · Kermadec Islands, New Zealand · 14.1 kmM 4.9 · Kermadec Islands, New Zealand · 50.3 kmM 4.7 · Kermadec Islands region · 76.6 kmM 4.9 · Kermadec Islands region · 65.4 km
Kermadec Islands, New Zealand388 km22 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

12 Felt reports · PAGER GREEN · Tsunami indicator · Shallow

70/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 7.3Kermadec Islands, New Zealand46.0 km2019-06-15 22:55:04 UTCView event →
M 5.2Kermadec Islands, New Zealand35.0 km2019-06-15 23:04:06 UTCView event →
M 5.3Kermadec Islands, New Zealand39.5 km2019-06-15 23:07:25 UTCView event →
M 4.5Kermadec Islands, New Zealand35.0 km2019-06-15 23:30:03 UTCView event →
M 5.0Kermadec Islands, New Zealand39.3 km2019-06-16 00:00:07 UTCView event →
M 4.5Kermadec Islands, New Zealand35.0 km2019-06-16 00:07:58 UTCView event →
M 4.6Kermadec Islands, New Zealand35.0 km2019-06-16 00:12:50 UTCView event →
M 4.5Kermadec Islands region10.0 km2019-06-16 00:39:31 UTCView event →
M 4.6Kermadec Islands, New Zealand39.0 km2019-06-16 00:53:59 UTCView event →
M 5.1Kermadec Islands, New Zealand35.0 km2019-06-16 01:29:42 UTCView event →
M 4.5Kermadec Islands, New Zealand35.0 km2019-06-16 01:46:49 UTCView event →
M 5.5Kermadec Islands, New Zealand35.0 km2019-06-16 03:02:39 UTCView event →
M 4.7Kermadec Islands, New Zealand35.0 km2019-06-16 03:10:31 UTCView event →
M 6.3Kermadec Islands region21.0 km2019-06-16 05:17:14 UTCView event →
M 4.9Kermadec Islands region5.9 km2019-06-16 15:23:38 UTCView event →
M 4.6Kermadec Islands, New Zealand8.7 km2019-06-16 16:41:32 UTCView event →
M 4.8Kermadec Islands region10.0 km2019-06-16 19:25:26 UTCView event →
M 5.6Kermadec Islands region10.0 km2019-06-16 20:58:22 UTCView event →
M 4.6Kermadec Islands region10.0 km2019-06-16 21:12:47 UTCView event →
M 5.0Kermadec Islands, New Zealand35.0 km2019-06-16 21:56:05 UTCView event →
M 4.9Kermadec Islands, New Zealand35.0 km2019-06-16 22:20:18 UTCView event →
M 4.7Kermadec Islands region10.0 km2019-06-16 22:21:17 UTCView event →
M 4.9Kermadec Islands region10.0 km2019-06-16 22:28:21 UTCView event →
M 5.0Kermadec Islands region10.0 km2019-06-16 23:19:58 UTCView event →
M 4.9Kermadec Islands, New Zealand35.0 km2019-06-17 00:11:01 UTCView event →
M 4.5Kermadec Islands region10.0 km2019-06-17 00:18:27 UTCView event →
M 4.9Kermadec Islands region10.0 km2019-06-17 02:05:40 UTCView event →
M 4.8Kermadec Islands region10.0 km2019-06-17 04:49:43 UTCView event →
M 6.1Kermadec Islands, New Zealand12.0 km2019-06-17 06:02:04 UTCView event →
M 4.6Kermadec Islands, New Zealand10.0 km2019-06-17 06:15:39 UTCView event →
M 4.6south of the Kermadec Islands10.0 km2019-06-17 07:37:06 UTCView event →
M 4.9Kermadec Islands region10.0 km2019-06-17 09:57:19 UTCView event →
M 4.6Kermadec Islands region10.0 km2019-06-17 10:01:47 UTCView event →
M 4.8Kermadec Islands, New Zealand10.0 km2019-06-17 10:47:29 UTCView event →
M 4.9Kermadec Islands, New Zealand10.0 km2019-06-17 12:10:03 UTCView event →
M 5.5Kermadec Islands, New Zealand22.4 km2019-06-17 16:53:05 UTCView event →
M 4.6Kermadec Islands, New Zealand10.0 km2019-06-17 19:20:08 UTCView event →
M 5.1Kermadec Islands, New Zealand10.0 km2019-06-18 01:15:58 UTCView event →
M 4.6south of the Kermadec Islands10.0 km2019-06-18 03:45:44 UTCView event →
M 5.1Kermadec Islands region10.0 km2019-06-18 04:23:50 UTCView event →
M 4.7south of the Kermadec Islands10.0 km2019-06-18 04:29:55 UTCView event →
M 4.7Kermadec Islands region10.0 km2019-06-18 04:32:44 UTCView event →
M 4.6Kermadec Islands, New Zealand10.0 km2019-06-18 06:56:02 UTCView event →
M 4.9south of the Kermadec Islands10.0 km2019-06-18 07:20:21 UTCView event →
M 4.5Kermadec Islands, New Zealand10.0 km2019-06-18 12:59:52 UTCView event →
M 5.9Kermadec Islands region15.0 km2019-06-18 16:05:17 UTCView event →
M 4.5south of the Kermadec Islands10.0 km2019-06-18 16:19:57 UTCView event →
M 5.5Kermadec Islands region10.0 km2019-06-18 17:21:48 UTCView event →
M 4.6Kermadec Islands, New Zealand39.8 km2019-06-18 17:45:43 UTCView event →
M 5.2Kermadec Islands, New Zealand43.9 km2019-06-18 18:12:09 UTCView event →
M 4.6Kermadec Islands, New Zealand21.7 km2019-06-18 20:21:11 UTCView event →
M 5.0Kermadec Islands, New Zealand18.4 km2019-06-18 23:04:34 UTCView event →
M 5.2Kermadec Islands region14.3 km2019-06-18 23:24:20 UTCView event →
M 4.9Kermadec Islands region10.0 km2019-06-18 23:37:14 UTCView event →
M 5.3Kermadec Islands, New Zealand19.5 km2019-06-18 23:59:06 UTCView event →
M 4.7Kermadec Islands, New Zealand10.0 km2019-06-19 00:22:43 UTCView event →
M 4.5Kermadec Islands, New Zealand49.8 km2019-06-19 00:32:44 UTCView event →
M 4.5Kermadec Islands, New Zealand10.0 km2019-06-19 00:52:05 UTCView event →
M 4.7Kermadec Islands region10.0 km2019-06-19 01:05:57 UTCView event →
M 4.6Kermadec Islands region10.0 km2019-06-19 05:55:42 UTCView event →
M 6.4Kermadec Islands, New Zealand30.0 km2019-06-19 07:01:45 UTCView event →
M 4.9Kermadec Islands, New Zealand35.0 km2019-06-19 11:18:49 UTCView event →
M 4.6Kermadec Islands region35.0 km2019-06-19 13:49:42 UTCView event →
M 4.6Kermadec Islands region16.9 km2019-06-19 14:40:43 UTCView event →
M 4.5Kermadec Islands, New Zealand35.0 km2019-06-19 15:07:47 UTCView event →
M 4.7south of the Kermadec Islands23.8 km2019-06-19 16:12:09 UTCView event →
M 4.5Kermadec Islands, New Zealand10.0 km2019-06-19 16:43:03 UTCView event →
M 4.6Kermadec Islands, New Zealand35.0 km2019-06-19 22:30:46 UTCView event →
M 4.9Kermadec Islands, New Zealand17.4 km2019-06-19 23:05:42 UTCView event →
M 4.5Kermadec Islands region10.0 km2019-06-20 02:22:41 UTCView event →
M 5.0south of the Kermadec Islands10.0 km2019-06-20 05:24:44 UTCView event →
M 4.6Kermadec Islands, New Zealand10.0 km2019-06-20 19:04:30 UTCView event →
M 4.6south of the Kermadec Islands40.2 km2019-06-20 20:07:59 UTCView event →
M 4.6south of the Kermadec Islands10.0 km2019-06-20 21:11:37 UTCView event →
M 5.1Kermadec Islands region10.0 km2019-06-20 21:45:06 UTCView event →
M 4.6Kermadec Islands, New Zealand10.0 km2019-06-20 22:16:38 UTCView event →
M 5.1south of the Kermadec Islands10.0 km2019-06-20 23:15:11 UTCView event →
M 4.7Kermadec Islands region10.0 km2019-06-21 05:39:21 UTCView event →
M 5.2Kermadec Islands region15.2 km2019-06-21 07:27:40 UTCView event →
M 6.2Kermadec Islands, New Zealand14.0 km2019-06-21 08:37:16 UTCView event →
M 5.1Kermadec Islands, New Zealand10.0 km2019-06-21 08:40:38 UTCView event →
M 4.9Kermadec Islands, New Zealand10.0 km2019-06-21 08:50:12 UTCView event →
M 4.6south of the Kermadec Islands10.0 km2019-06-21 09:13:58 UTCView event →
M 4.6Kermadec Islands, New Zealand10.0 km2019-06-21 11:22:02 UTCView event →
M 4.7Kermadec Islands, New Zealand10.0 km2019-06-21 11:33:27 UTCView event →
M 4.5Kermadec Islands, New Zealand10.0 km2019-06-21 12:52:05 UTCView event →
M 4.5Kermadec Islands region10.0 km2019-06-21 15:08:03 UTCView event →
M 4.7south of the Kermadec Islands10.0 km2019-06-21 17:04:06 UTCView event →
M 4.9Kermadec Islands region10.0 km2019-06-21 17:08:28 UTCView event →
M 4.9Kermadec Islands, New Zealand33.7 km2019-06-21 20:48:56 UTCView event →
M 5.1Kermadec Islands, New Zealand10.0 km2019-06-21 22:49:24 UTCView event →
M 5.1Kermadec Islands, New Zealand10.0 km2019-06-21 23:00:28 UTCView event →
M 4.7Kermadec Islands, New Zealand10.0 km2019-06-21 23:08:38 UTCView event →
M 4.9Kermadec Islands, New Zealand10.0 km2019-06-22 22:35:06 UTCView event →
M 5.2Kermadec Islands, New Zealand10.0 km2019-06-23 06:52:08 UTCView event →
M 4.5Kermadec Islands, New Zealand10.0 km2019-06-23 11:21:44 UTCView event →
M 4.8Kermadec Islands, New Zealand10.0 km2019-06-23 16:05:07 UTCView event →
M 4.6Kermadec Islands region10.0 km2019-06-24 07:32:27 UTCView event →
M 5.9Kermadec Islands, New Zealand10.0 km2019-06-24 11:34:08 UTCView event →
M 4.9Kermadec Islands, New Zealand10.0 km2019-06-24 11:58:30 UTCView event →
M 4.7Kermadec Islands, New Zealand10.0 km2019-06-24 12:47:12 UTCView event →
M 4.5Kermadec Islands, New Zealand41.9 km2019-06-24 13:32:35 UTCView event →
M 4.5Kermadec Islands, New Zealand10.0 km2019-06-24 20:25:23 UTCView event →
M 4.5south of the Kermadec Islands10.0 km2019-06-25 03:00:01 UTCView event →
M 4.5Kermadec Islands region10.0 km2019-06-25 03:25:37 UTCView event →
M 4.8Kermadec Islands, New Zealand10.0 km2019-06-25 22:35:42 UTCView event →
M 5.3Kermadec Islands, New Zealand10.0 km2019-06-26 18:06:30 UTCView event →
M 4.7Kermadec Islands, New Zealand12.4 km2019-06-26 21:16:30 UTCView event →
M 4.5south of the Kermadec Islands10.0 km2019-06-27 05:08:17 UTCView event →
M 4.5south of the Kermadec Islands10.0 km2019-06-27 05:14:18 UTCView event →
M 6.3Kermadec Islands region10.0 km2019-06-27 11:04:56 UTCView event →
M 4.7Kermadec Islands, New Zealand10.0 km2019-06-27 11:18:59 UTCView event →
M 4.9Kermadec Islands, New Zealand10.0 km2019-06-27 12:09:16 UTCView event →
M 4.5Kermadec Islands region10.0 km2019-06-27 15:23:57 UTCView event →
M 4.8Kermadec Islands, New Zealand10.0 km2019-06-28 15:16:44 UTCView event →
M 4.8Kermadec Islands, New Zealand14.4 km2019-06-28 20:26:20 UTCView event →
M 4.8Kermadec Islands region10.0 km2019-06-28 21:00:01 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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