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Observation record / USGS 地震速报

M 3.7 - 93 km N of Brenas, Puerto Rico

First seen 10/21, 10:26 · Last observed 10/21, 23:50 · Source data is current

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Title-based outlineM 3.7 - 93 km N of Brenas, Puerto Rico

Why it mattersOriginal USGS magnitude and event time for checking records. Magnitude is not popularity, an impact assessment or an early warning.

Published 10/21, 08:55

30 minutesRank movement—

Building history

1 hourRank movement-1

Baseline observed 10/21, 22:49

24 hoursRank movement—

Building history

Publication position history

81 observations

Publication feed in source order. Position changes do not count as heat or momentum.

USGS public domain; attribution

View original observation times and ranks

Observation time (Beijing)	Source position
10/21, 23:50	18
10/21, 23:40	18
10/21, 23:30	18
10/21, 23:20	18
10/21, 23:10	17
10/21, 22:59	17
10/21, 22:49	17
10/21, 22:39	17
10/21, 22:29	17
10/21, 22:19	17
10/21, 22:09	16
10/21, 21:59	16
10/21, 21:49	16
10/21, 21:39	16
10/21, 21:29	16
10/21, 21:19	16
10/21, 21:09	16
10/21, 20:59	16
10/21, 20:48	15
10/21, 20:38	15
10/21, 20:28	15
10/21, 20:18	15
10/21, 20:08	15
10/21, 19:58	14
10/21, 19:48	14
10/21, 19:38	14
10/21, 19:28	13
10/21, 19:18	13
10/21, 19:08	13
10/21, 18:58	13
10/21, 18:48	13
10/21, 18:38	13
10/21, 18:28	13
10/21, 18:18	13
10/21, 18:08	13
10/21, 17:58	12
10/21, 17:48	12
10/21, 17:38	11
10/21, 17:28	11
10/21, 17:17	11
10/21, 17:07	11
10/21, 16:57	11
10/21, 16:47	10
10/21, 16:37	10
10/21, 16:27	10
10/21, 16:17	10
10/21, 16:07	10
10/21, 15:57	9
10/21, 15:47	9
10/21, 15:37	9
10/21, 15:27	9
10/21, 15:17	9
10/21, 15:07	9
10/21, 14:57	9
10/21, 14:47	9
10/21, 14:37	9
10/21, 14:27	9
10/21, 14:17	9
10/21, 14:07	9
10/21, 13:57	9
10/21, 13:47	9
10/21, 13:37	9
10/21, 13:27	8
10/21, 13:16	8
10/21, 13:06	8
10/21, 12:56	8
10/21, 12:46	8
10/21, 12:36	7
10/21, 12:26	7
10/21, 12:16	7
10/21, 12:06	6
10/21, 11:56	6
10/21, 11:46	6
10/21, 11:36	6
10/21, 11:26	6
10/21, 11:16	5
10/21, 11:06	4
10/21, 10:56	4
10/21, 10:46	4
10/21, 10:36	4
10/21, 10:26	4

Daily aggregate history

日期	Best daily position	Last daily position	Observations
2026-10-21	4	18	81