Sequence · 2016-08-19

M 7.4 · Observed seismic cluster · South Georgia Island region

Name: M 7.4 · Observed seismic cluster · South Georgia Island region | Quake Pulse
Creator: Quake Pulse

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 cluster146

M6+2

Analysis radius404 km

Observation window14 days

Largest secondary eventM 6.1

Quake Pulse

Sequence timeline

Within first 24 hours76

Within first 7 days122

Observed duration14.0 d

Gap from reference eventM 1.3

0 h14.0 d

Quake Pulse

Main-event impact

1 Felt reports · PAGER GREEN · Shallow

52/100

Impact and context →

M4.5+ events in cluster

Magnitude	Location	Depth	Time
M 7.4	South Georgia Island region	10.0 km	2016-08-19 07:32:22 UTC	View event →
M 5.7	South Sandwich Islands region	10.0 km	2016-08-19 07:36:01 UTC	View event →
M 5.4	South Georgia Island region	10.0 km	2016-08-19 07:38:50 UTC	View event →
M 4.8	South Sandwich Islands region	10.0 km	2016-08-19 07:41:47 UTC	View event →
M 5.0	South Sandwich Islands region	10.0 km	2016-08-19 07:42:04 UTC	View event →
M 4.6	South Georgia Island region	10.0 km	2016-08-19 07:46:12 UTC	View event →
M 5.2	South Georgia Island region	10.0 km	2016-08-19 07:46:39 UTC	View event →
M 4.5	South Sandwich Islands region	10.0 km	2016-08-19 07:53:09 UTC	View event →
M 4.5	South Georgia Island region	10.0 km	2016-08-19 07:54:39 UTC	View event →
M 5.1	South Georgia Island region	10.0 km	2016-08-19 07:54:53 UTC	View event →
M 4.8	South Georgia Island region	10.0 km	2016-08-19 07:58:11 UTC	View event →
M 4.6	South Sandwich Islands region	10.0 km	2016-08-19 08:01:34 UTC	View event →
M 4.7	South Sandwich Islands region	10.0 km	2016-08-19 08:02:49 UTC	View event →
M 4.6	South Georgia Island region	10.0 km	2016-08-19 08:07:06 UTC	View event →
M 4.5	South Sandwich Islands region	10.0 km	2016-08-19 08:09:34 UTC	View event →
M 4.5	South Georgia Island region	10.0 km	2016-08-19 08:11:12 UTC	View event →
M 4.5	South Sandwich Islands region	10.0 km	2016-08-19 08:12:52 UTC	View event →
M 4.9	South Georgia Island region	10.0 km	2016-08-19 08:13:31 UTC	View event →
M 5.1	South Georgia Island region	10.0 km	2016-08-19 08:13:40 UTC	View event →
M 4.6	South Georgia Island region	10.0 km	2016-08-19 08:15:55 UTC	View event →
M 4.5	South Georgia Island region	10.0 km	2016-08-19 08:19:15 UTC	View event →
M 5.2	South Georgia Island region	10.0 km	2016-08-19 08:21:03 UTC	View event →
M 4.6	South Georgia Island region	10.0 km	2016-08-19 08:23:54 UTC	View event →
M 4.6	South Georgia Island region	10.0 km	2016-08-19 08:31:25 UTC	View event →
M 5.1	South Sandwich Islands region	10.0 km	2016-08-19 08:32:50 UTC	View event →
M 4.8	South Georgia Island region	10.0 km	2016-08-19 08:34:17 UTC	View event →
M 4.5	South Georgia Island region	10.0 km	2016-08-19 08:36:59 UTC	View event →
M 4.6	South Georgia Island region	10.0 km	2016-08-19 08:39:24 UTC	View event →
M 4.9	South Sandwich Islands region	10.0 km	2016-08-19 08:40:11 UTC	View event →
M 4.6	South Georgia Island region	10.0 km	2016-08-19 08:51:15 UTC	View event →
M 4.6	South Georgia Island region	16.7 km	2016-08-19 09:00:05 UTC	View event →
M 4.7	South Sandwich Islands region	10.0 km	2016-08-19 09:23:32 UTC	View event →
M 4.8	South Georgia Island region	10.0 km	2016-08-19 09:33:55 UTC	View event →
M 4.8	South Georgia Island region	10.0 km	2016-08-19 09:47:14 UTC	View event →
M 5.0	South Georgia Island region	10.0 km	2016-08-19 10:00:25 UTC	View event →
M 4.6	South Georgia Island region	10.0 km	2016-08-19 10:03:51 UTC	View event →
M 4.8	South Georgia Island region	10.0 km	2016-08-19 10:07:04 UTC	View event →
M 4.7	South Sandwich Islands region	10.0 km	2016-08-19 10:10:31 UTC	View event →
M 4.7	South Georgia Island region	10.0 km	2016-08-19 10:18:09 UTC	View event →
M 4.5	South Georgia Island region	10.0 km	2016-08-19 10:27:14 UTC	View event →
M 5.1	South Sandwich Islands region	10.0 km	2016-08-19 10:31:19 UTC	View event →
M 5.0	South Georgia Island region	10.0 km	2016-08-19 10:59:59 UTC	View event →
M 4.8	South Georgia Island region	10.0 km	2016-08-19 11:14:29 UTC	View event →
M 4.9	South Georgia Island region	10.0 km	2016-08-19 11:18:34 UTC	View event →
M 4.5	South Georgia Island region	10.0 km	2016-08-19 11:44:44 UTC	View event →
M 5.1	South Georgia Island region	15.1 km	2016-08-19 12:56:10 UTC	View event →
M 4.5	South Sandwich Islands region	21.2 km	2016-08-19 12:58:45 UTC	View event →
M 5.1	South Georgia Island region	10.0 km	2016-08-19 13:00:06 UTC	View event →
M 5.0	South Georgia Island region	10.0 km	2016-08-19 13:42:23 UTC	View event →
M 4.7	South Sandwich Islands region	10.0 km	2016-08-19 13:52:25 UTC	View event →
M 4.5	South Georgia Island region	10.0 km	2016-08-19 14:02:30 UTC	View event →
M 4.6	South Georgia Island region	10.0 km	2016-08-19 14:04:33 UTC	View event →
M 4.5	South Georgia Island region	10.0 km	2016-08-19 14:29:22 UTC	View event →
M 4.7	South Sandwich Islands region	10.0 km	2016-08-19 14:45:47 UTC	View event →
M 4.7	South Georgia Island region	10.0 km	2016-08-19 14:47:05 UTC	View event →
M 4.6	South Georgia Island region	10.0 km	2016-08-19 14:49:34 UTC	View event →
M 4.5	South Georgia Island region	10.0 km	2016-08-19 16:53:48 UTC	View event →
M 5.8	South Georgia Island region	3.4 km	2016-08-19 17:33:40 UTC	View event →
M 4.9	South Georgia Island region	19.1 km	2016-08-19 18:12:21 UTC	View event →
M 4.6	South Georgia Island region	10.0 km	2016-08-19 19:13:40 UTC	View event →
M 4.7	South Georgia Island region	16.4 km	2016-08-19 20:13:58 UTC	View event →
M 5.5	South Georgia Island region	6.8 km	2016-08-19 20:37:15 UTC	View event →
M 4.8	South Georgia Island region	10.0 km	2016-08-19 21:05:31 UTC	View event →
M 4.7	South Georgia Island region	10.0 km	2016-08-19 21:11:09 UTC	View event →
M 4.7	South Sandwich Islands region	10.0 km	2016-08-19 22:03:48 UTC	View event →
M 4.6	South Georgia Island region	10.0 km	2016-08-19 22:09:48 UTC	View event →
M 5.0	South Georgia Island region	10.0 km	2016-08-19 22:56:59 UTC	View event →
M 5.3	South Georgia Island region	10.0 km	2016-08-20 00:04:22 UTC	View event →
M 5.3	South Georgia Island region	10.0 km	2016-08-20 00:15:39 UTC	View event →
M 4.5	South Georgia Island region	10.0 km	2016-08-20 00:20:43 UTC	View event →
M 4.6	South Georgia Island region	10.0 km	2016-08-20 02:17:05 UTC	View event →
M 4.7	South Sandwich Islands region	10.0 km	2016-08-20 02:22:58 UTC	View event →
M 4.5	South Georgia Island region	10.0 km	2016-08-20 04:44:25 UTC	View event →
M 4.6	South Georgia Island region	10.0 km	2016-08-20 05:51:25 UTC	View event →
M 4.5	South Sandwich Islands region	10.0 km	2016-08-20 06:01:23 UTC	View event →
M 4.7	South Georgia Island region	10.0 km	2016-08-20 06:45:49 UTC	View event →
M 4.6	South Georgia Island region	10.0 km	2016-08-20 08:48:51 UTC	View event →
M 4.9	South Georgia Island region	10.0 km	2016-08-20 09:01:56 UTC	View event →
M 5.4	South Georgia Island region	5.4 km	2016-08-20 11:17:54 UTC	View event →
M 4.7	South Georgia Island region	13.3 km	2016-08-20 11:20:08 UTC	View event →
M 4.6	South Georgia Island region	13.0 km	2016-08-20 11:26:29 UTC	View event →
M 5.3	South Georgia Island region	10.0 km	2016-08-20 11:27:19 UTC	View event →
M 4.6	South Georgia Island region	13.5 km	2016-08-20 12:04:26 UTC	View event →
M 5.2	South Georgia Island region	10.0 km	2016-08-20 20:23:07 UTC	View event →
M 4.5	South Georgia Island region	10.0 km	2016-08-20 21:34:46 UTC	View event →
M 5.0	South Sandwich Islands region	10.0 km	2016-08-20 21:46:58 UTC	View event →
M 4.7	South Sandwich Islands region	10.0 km	2016-08-20 22:30:26 UTC	View event →
M 4.5	South Georgia Island region	10.0 km	2016-08-21 00:03:06 UTC	View event →
M 4.5	South Georgia Island region	10.0 km	2016-08-21 02:12:40 UTC	View event →
M 4.7	South Sandwich Islands region	10.0 km	2016-08-21 02:13:29 UTC	View event →
M 4.5	South Sandwich Islands region	10.0 km	2016-08-21 02:47:34 UTC	View event →
M 4.9	South Georgia Island region	10.0 km	2016-08-21 02:48:04 UTC	View event →
M 6.1	South Georgia Island region	12.0 km	2016-08-21 03:45:23 UTC	View event →
M 4.6	South Georgia Island region	10.0 km	2016-08-21 03:51:58 UTC	View event →
M 5.0	South Georgia Island region	10.0 km	2016-08-21 04:28:59 UTC	View event →
M 4.9	South Georgia Island region	10.0 km	2016-08-21 09:53:46 UTC	View event →
M 4.9	South Sandwich Islands region	10.0 km	2016-08-21 09:54:06 UTC	View event →
M 4.7	South Georgia Island region	10.0 km	2016-08-21 16:16:53 UTC	View event →
M 4.5	South Sandwich Islands region	10.0 km	2016-08-21 23:48:30 UTC	View event →
M 4.8	South Sandwich Islands region	10.0 km	2016-08-22 01:42:13 UTC	View event →
M 4.5	South Georgia Island region	10.0 km	2016-08-22 03:55:54 UTC	View event →
M 4.7	South Georgia Island region	10.0 km	2016-08-22 04:48:42 UTC	View event →
M 5.0	South Georgia Island region	10.0 km	2016-08-22 04:52:49 UTC	View event →
M 4.6	South Georgia Island region	10.0 km	2016-08-22 07:07:55 UTC	View event →
M 5.2	South Georgia Island region	10.0 km	2016-08-22 08:32:38 UTC	View event →
M 4.7	South Sandwich Islands region	10.0 km	2016-08-22 10:20:46 UTC	View event →
M 5.0	South Georgia Island region	14.8 km	2016-08-22 11:11:15 UTC	View event →
M 4.6	South Georgia Island region	10.0 km	2016-08-22 14:51:55 UTC	View event →
M 5.0	South Georgia Island region	10.0 km	2016-08-22 20:43:59 UTC	View event →
M 4.5	South Sandwich Islands region	10.0 km	2016-08-22 21:31:45 UTC	View event →
M 5.3	South Sandwich Islands region	10.0 km	2016-08-23 02:52:05 UTC	View event →
M 4.5	South Sandwich Islands region	10.0 km	2016-08-23 04:59:42 UTC	View event →
M 4.8	South Sandwich Islands region	10.0 km	2016-08-23 06:51:40 UTC	View event →
M 4.5	South Sandwich Islands region	10.0 km	2016-08-23 23:25:01 UTC	View event →
M 4.5	South Georgia Island region	10.0 km	2016-08-24 10:07:33 UTC	View event →
M 4.8	South Georgia Island region	10.0 km	2016-08-24 10:27:12 UTC	View event →
M 4.6	South Georgia Island region	10.0 km	2016-08-24 11:59:58 UTC	View event →
M 4.6	South Georgia Island region	10.0 km	2016-08-24 14:01:57 UTC	View event →
M 4.5	South Sandwich Islands region	10.0 km	2016-08-25 04:05:43 UTC	View event →
M 4.5	South Sandwich Islands region	113.4 km	2016-08-25 16:29:13 UTC	View event →
M 4.7	South Georgia Island region	10.0 km	2016-08-25 23:50:11 UTC	View event →
M 4.5	South Georgia Island region	10.0 km	2016-08-26 06:04:28 UTC	View event →
M 4.7	South Georgia Island region	10.0 km	2016-08-26 10:35:37 UTC	View event →
M 4.9	South Georgia Island region	10.0 km	2016-08-26 11:58:43 UTC	View event →
M 5.4	South Sandwich Islands region	58.6 km	2016-08-27 04:51:05 UTC	View event →
M 4.6	South Georgia Island region	10.0 km	2016-08-27 08:28:34 UTC	View event →
M 4.5	South Sandwich Islands region	35.0 km	2016-08-28 10:07:55 UTC	View event →
M 4.6	South Georgia Island region	10.0 km	2016-08-28 13:01:52 UTC	View event →
M 5.1	South Georgia Island region	10.0 km	2016-08-28 14:26:05 UTC	View event →
M 4.7	South Sandwich Islands region	75.1 km	2016-08-30 00:27:17 UTC	View event →
M 5.1	South Sandwich Islands region	10.0 km	2016-08-30 14:47:32 UTC	View event →
M 4.5	South Sandwich Islands region	10.0 km	2016-08-30 14:57:59 UTC	View event →
M 5.3	South Sandwich Islands region	10.0 km	2016-08-30 15:46:02 UTC	View event →
M 5.0	South Georgia Island region	10.0 km	2016-08-31 03:16:08 UTC	View event →
M 4.9	South Sandwich Islands region	10.0 km	2016-08-31 13:55:55 UTC	View event →
M 5.1	South Sandwich Islands region	103.4 km	2016-08-31 15:39:07 UTC	View event →
M 4.7	South Georgia Island region	10.0 km	2016-08-31 18:18:18 UTC	View event →
M 4.5	South Georgia Island region	12.7 km	2016-08-31 18:19:30 UTC	View event →
M 5.1	South Sandwich Islands region	10.0 km	2016-09-01 22:56:34 UTC	View event →
M 4.7	South Sandwich Islands region	10.0 km	2016-09-02 00:21:41 UTC	View event →
M 5.5	South Sandwich Islands region	8.0 km	2016-09-02 01:57:50 UTC	View event →
M 4.5	South Sandwich Islands region	15.2 km	2016-09-02 02:46:33 UTC	View event →
M 4.8	South Sandwich Islands region	10.0 km	2016-09-02 06:47:00 UTC	View event →
M 5.3	South Sandwich Islands region	10.0 km	2016-09-02 06:48:53 UTC	View event →
M 4.6	South Georgia Island region	10.0 km	2016-09-02 07:04:19 UTC	View event →
M 4.7	South Georgia Island region	10.0 km	2016-09-02 07:05:31 UTC	View 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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