Explore clusters of M4.5+ events observed around significant earthquakes. These clusters are descriptive and are not presented as earthquake predictions.
After the M 7.5 reference event, Quake Pulse counts 25 M4+ event(s) in the first 24 hours and 46 in the first 7 days. Fourteen-day M4.5+ activity is about 2.3× the average equivalent derived from the previous year. The largest secondary event is M 1.5 below the reference event.
Descriptive comparison with M4.5+ events observed in the same radius during the 365 days before the sequence.
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.
Earlier events are shown as context only. They are not labelled precursors and should not be interpreted as predictive signals.
Shows M4+ cluster events according to elapsed time after the reference event.
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.
11 Felt reports · PAGER GREEN · Tsunami indicator · Shallow
| Magnitude | Location | Depth | Time | |
|---|---|---|---|---|
| M 7.5 | 53 km SE of Kokopo, Papua New Guinea | 41.0 km | 2015-03-29 23:48:31 UTC | View event → |
| M 5.7 | New Britain region, Papua New Guinea | 42.1 km | 2015-03-30 00:15:31 UTC | View event → |
| M 5.1 | 93 km SSE of Kokopo, Papua New Guinea | 35.0 km | 2015-03-30 00:43:13 UTC | View event → |
| M 4.7 | 119 km SSE of Kokopo, Papua New Guinea | 10.0 km | 2015-03-30 00:44:30 UTC | View event → |
| M 4.5 | 95 km SSE of Kokopo, Papua New Guinea | 46.3 km | 2015-03-30 01:35:07 UTC | View event → |
| M 4.6 | 111 km SE of Kokopo, Papua New Guinea | 53.1 km | 2015-03-30 01:51:27 UTC | View event → |
| M 4.8 | 119 km SSE of Kokopo, Papua New Guinea | 10.0 km | 2015-03-30 02:23:18 UTC | View event → |
| M 4.6 | 85 km SSE of Kokopo, Papua New Guinea | 47.4 km | 2015-03-30 02:48:10 UTC | View event → |
| M 5.3 | 123 km SSE of Kokopo, Papua New Guinea | 10.0 km | 2015-03-30 04:16:09 UTC | View event → |
| M 4.7 | 126 km SSE of Kokopo, Papua New Guinea | 38.5 km | 2015-03-30 04:37:59 UTC | View event → |
| M 4.8 | 125 km SE of Kokopo, Papua New Guinea | 35.0 km | 2015-03-30 06:19:54 UTC | View event → |
| M 4.5 | 101 km SE of Kokopo, Papua New Guinea | 35.0 km | 2015-03-30 06:30:48 UTC | View event → |
| M 4.7 | 140 km SE of Kokopo, Papua New Guinea | 38.8 km | 2015-03-30 06:58:25 UTC | View event → |
| M 4.8 | 141 km SSE of Kokopo, Papua New Guinea | 35.0 km | 2015-03-30 07:13:45 UTC | View event → |
| M 4.6 | 147 km SE of Kokopo, Papua New Guinea | 35.0 km | 2015-03-30 07:24:36 UTC | View event → |
| M 4.7 | 149 km SE of Kokopo, Papua New Guinea | 25.2 km | 2015-03-30 07:30:46 UTC | View event → |
| M 5.3 | 51 km SSE of Kokopo, Papua New Guinea | 35.0 km | 2015-03-30 08:31:46 UTC | View event → |
| M 4.5 | 119 km SE of Kokopo, Papua New Guinea | 41.5 km | 2015-03-30 08:56:52 UTC | View event → |
| M 4.9 | 71 km SSE of Kokopo, Papua New Guinea | 35.0 km | 2015-03-30 11:23:08 UTC | View event → |
| M 4.9 | 136 km SE of Kokopo, Papua New Guinea | 35.0 km | 2015-03-30 11:43:21 UTC | View event → |
| M 4.5 | 114 km SE of Kokopo, Papua New Guinea | 27.5 km | 2015-03-30 12:24:22 UTC | View event → |
| M 4.8 | 117 km SSE of Kokopo, Papua New Guinea | 35.0 km | 2015-03-30 14:52:10 UTC | View event → |
| M 4.5 | 124 km SSE of Kokopo, Papua New Guinea | 46.5 km | 2015-03-30 16:47:52 UTC | View event → |
| M 4.7 | 121 km SSE of Kokopo, Papua New Guinea | 21.0 km | 2015-03-30 17:06:54 UTC | View event → |
| M 4.5 | 122 km SE of Kokopo, Papua New Guinea | 51.7 km | 2015-03-30 19:38:28 UTC | View event → |
| M 4.7 | 147 km SE of Kokopo, Papua New Guinea | 32.8 km | 2015-03-30 19:41:21 UTC | View event → |
| M 5.7 | 67 km SSE of Kokopo, Papua New Guinea | 35.0 km | 2015-03-31 12:15:21 UTC | View event → |
| M 6.0 | 65 km SSE of Kokopo, Papua New Guinea | 39.0 km | 2015-03-31 12:18:24 UTC | View event → |
| M 4.8 | 100 km SE of Kokopo, Papua New Guinea | 35.0 km | 2015-03-31 12:25:42 UTC | View event → |
| M 4.9 | 149 km SSE of Kokopo, Papua New Guinea | 44.4 km | 2015-03-31 16:50:21 UTC | View event → |
| M 4.5 | 142 km SSE of Kokopo, Papua New Guinea | 37.1 km | 2015-03-31 22:14:21 UTC | View event → |
| M 4.6 | 131 km S of Kokopo, Papua New Guinea | 10.0 km | 2015-04-01 01:13:13 UTC | View event → |
| M 4.7 | 110 km SSE of Kokopo, Papua New Guinea | 38.5 km | 2015-04-01 02:02:01 UTC | View event → |
| M 4.6 | 169 km SSE of Kokopo, Papua New Guinea | 10.0 km | 2015-04-01 06:01:46 UTC | View event → |
| M 4.7 | New Britain region, Papua New Guinea | 36.6 km | 2015-04-02 09:19:41 UTC | View event → |
| M 4.6 | 109 km SE of Kokopo, Papua New Guinea | 20.7 km | 2015-04-02 15:01:54 UTC | View event → |
| M 4.5 | 115 km SSE of Kokopo, Papua New Guinea | 27.5 km | 2015-04-02 20:17:02 UTC | View event → |
| M 4.5 | 164 km SE of Kokopo, Papua New Guinea | 18.8 km | 2015-04-02 20:23:38 UTC | View event → |
| M 4.9 | 163 km SSE of Kokopo, Papua New Guinea | 25.4 km | 2015-04-03 00:24:35 UTC | View event → |
| M 4.9 | 168 km SE of Kokopo, Papua New Guinea | 35.0 km | 2015-04-03 09:11:49 UTC | View event → |
| M 4.8 | 158 km SSE of Kokopo, Papua New Guinea | 13.1 km | 2015-04-03 10:47:45 UTC | View event → |
| M 5.2 | 115 km SE of Kokopo, Papua New Guinea | 53.2 km | 2015-04-03 19:22:25 UTC | View event → |
| M 4.6 | 136 km SSE of Kokopo, Papua New Guinea | 10.0 km | 2015-04-03 21:53:02 UTC | View event → |
| M 5.1 | 128 km SSE of Kokopo, Papua New Guinea | 30.2 km | 2015-04-04 04:08:36 UTC | View event → |
| M 4.7 | 147 km SSE of Kokopo, Papua New Guinea | 34.3 km | 2015-04-04 12:11:29 UTC | View event → |
| M 5.3 | 121 km SSE of Kokopo, Papua New Guinea | 35.0 km | 2015-04-05 08:35:34 UTC | View event → |
| M 5.5 | 142 km SSE of Kokopo, Papua New Guinea | 8.0 km | 2015-04-05 20:51:39 UTC | View event → |
| M 4.7 | 166 km SSW of Kokopo, Papua New Guinea | 35.0 km | 2015-04-06 06:56:57 UTC | View event → |
| M 4.5 | 111 km SE of Kokopo, Papua New Guinea | 54.5 km | 2015-04-06 10:45:37 UTC | View event → |
| M 4.7 | 51 km SE of Kokopo, Papua New Guinea | 62.9 km | 2015-04-07 16:37:53 UTC | View event → |
| M 5.2 | 181 km SE of Kokopo, Papua New Guinea | 10.0 km | 2015-04-10 08:24:34 UTC | View event → |
| M 4.5 | 152 km SE of Kokopo, Papua New Guinea | 46.6 km | 2015-04-12 14:05:18 UTC | View event → |
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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