Explore clusters of M4.5+ events observed around significant earthquakes. These clusters are descriptive and are not presented as earthquake predictions.
After the M 7.6 reference event, Quake Pulse counts 6 M4+ event(s) in the first 24 hours and 17 in the first 7 days. Fourteen-day M4.5+ activity is about 7.4× the average equivalent derived from the previous year. The largest secondary event is M 1.9 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.
769 Felt reports · Shallow
| Magnitude | Location | Depth | Time | |
|---|---|---|---|---|
| M 7.6 | 11 km ENE of Hojancha, Costa Rica | 35.0 km | 2012-09-05 14:42:07 UTC | View event → |
| M 4.6 | 6 km ENE of San Carlos, Nicaragua | 10.4 km | 2012-09-05 14:59:15 UTC | View event → |
| M 4.5 | 15 km W of Jacó, Costa Rica | 35.0 km | 2012-09-05 15:12:39 UTC | View event → |
| M 4.5 | 7 km W of Hojancha, Costa Rica | 35.0 km | 2012-09-05 22:11:23 UTC | View event → |
| M 4.6 | 6 km W of Hojancha, Costa Rica | 35.0 km | 2012-09-05 22:46:34 UTC | View event → |
| M 4.9 | 100 km S of Puerto El Triunfo, El Salvador | 35.0 km | 2012-09-06 06:47:34 UTC | View event → |
| M 4.6 | 10 km ENE of Hojancha, Costa Rica | 35.0 km | 2012-09-06 09:07:12 UTC | View event → |
| M 4.8 | 96 km SSW of Intipucá, El Salvador | 61.6 km | 2012-09-06 23:30:03 UTC | View event → |
| M 4.5 | 23 km N of Nandayure, Costa Rica | 43.0 km | 2012-09-07 01:21:25 UTC | View event → |
| M 4.7 | 87 km S of Puerto El Triunfo, El Salvador | 57.8 km | 2012-09-07 19:12:25 UTC | View event → |
| M 4.5 | 3 km WSW of Belén, Costa Rica | 34.2 km | 2012-09-08 09:50:22 UTC | View event → |
| M 5.7 | 10 km ENE of Hojancha, Costa Rica | 35.0 km | 2012-09-08 20:29:31 UTC | View event → |
| M 4.6 | 90 km S of Puerto El Triunfo, El Salvador | 73.6 km | 2012-09-09 22:57:59 UTC | View event → |
| M 4.7 | 99 km S of Puerto El Triunfo, El Salvador | 52.0 km | 2012-09-10 11:31:19 UTC | View event → |
| M 4.5 | 92 km SSW of Puerto El Triunfo, El Salvador | 34.8 km | 2012-09-10 13:15:31 UTC | View event → |
| M 4.6 | 142 km S of Puerto El Triunfo, El Salvador | 49.9 km | 2012-09-12 01:13:27 UTC | View event → |
| M 4.6 | 3 km ENE of Hojancha, Costa Rica | 35.0 km | 2012-09-12 02:13:02 UTC | View event → |
| M 4.8 | 42 km SW of Paquera, Costa Rica | 33.0 km | 2012-09-12 06:29:34 UTC | View event → |
| M 4.5 | 2 km NNE of Upala, Costa Rica | 10.0 km | 2012-09-12 18:43:16 UTC | View event → |
| M 4.5 | 3 km NNE of Hojancha, Costa Rica | 35.0 km | 2012-09-14 23:13:12 UTC | View event → |
| M 5.2 | 2 km NNW of Nicoya, Costa Rica | 27.7 km | 2012-09-16 05:51:09 UTC | View event → |
| M 4.6 | 43 km SSE of Sámara, Costa Rica | 11.5 km | 2012-09-16 15:13:46 UTC | View event → |
| M 4.5 | 109 km S of La Libertad, El Salvador | 51.8 km | 2012-09-16 18:33:25 UTC | View event → |
| M 4.5 | 112 km S of La Libertad, El Salvador | 35.0 km | 2012-09-18 08:20:41 UTC | View event → |
| M 4.5 | 16 km SSW of Sámara, Costa Rica | 36.4 km | 2012-09-18 19:10:37 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.
Guides, explainers and practical reading to go beyond the live data.
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