Author: Jennifer Andrews

11/11/2019, M4.0 near El Centro

Event 11 Nov 2019 18:13:52 PST, (32.792, -115.548), depth 18.9km. 1km ENE of El Centro, California Aftershocks As of 11 Nov 2019, 06:50PM PST, there have been 7 aftershocks recorded. The largest was M3.6 (smallest M1.3). More aftershocks may be

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11/07-08/2019, several M3 earthquakes near Ventura

Events A number of earthquakes with magnitude above 3 have occurred in this cluster of events near Ventura, the largest being M3.6: M3.6, 08 Nov 2019 05:29:38 PST, (34.278, -119.287), depth 11.5km, 6km W of Ventura, California M3.4, 07 Nov

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07/2019, Ridgecrest Sequence: M6.4 and M7.1

Please note that this sequence has been renamed, earlier reports used ‘Searles Valley Sequence’. The Ridgecrest Sequence started on July 4th, 2019 and so far has included one strong (M6.4, 2019/07/04) and one major (M7.1 2019/07/05) earthquake. The closest large

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06/12/2019, M3.7 near Camarillo

Event 12 Jun 2019 17:07:33 PDT, (34.073, -119.040), depth 18.5km. 16km S of Camarillo, California Aftershocks As of 12 Jun 2019, 05:59PM PDT, there have been no aftershocks recorded. Aftershocks may be expected in the next few days, the largest

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04/22/2019, M3.7 near Imperial

22 Apr 2019 20:24:03 PDT, (32.903, -115.512), depth 17.0km, 8km NE of Imperial, California Aftershocks: so far (17 May 2019, 08:37AM PDT) there have been 46 aftershocks recorded, the largest M2.9 (smallest M1.0). More may be expected in the next

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02/07/2019, M4.0 near Ludlow

07 Feb 2019 08:41:24 PDT, (34.703, -116.287), depth 1.6km, 12km W of Ludlow, California Aftershocks: so far (17 May 2019, 08:43AM PDT) there have been 81 aftershocks recorded, the largest M4.0 (smallest M0.4). More may be expected in the next

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12/05/2018, M4.2 near Trona

05 Dec 2018 13:40:17 PST, (35.735, -117.077), depth 4.4km, 28km E of Trona, California Aftershocks: so far (05 Dec 2018, 02:32PM PST) there have been 3 aftershocks recorded, the largest M3.7 (smallest M1.1). More may be expected in the next

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08/28/2018, M4.4 near La Verne

28 Aug 2018 19:33:28 PDT, (34.137, -117.775), depth 5.5km, 4km N of La Verne, California Aftershocks: so far (29 Aug 2018, 08:05AM PDT) there have been 37 aftershocks recorded, the largest M3.4 (smallest M0.5). More may be expected in the

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The Cahuilla Earthquake Swarm: 2016-2018

Update: 24 August 2018 Egill Hauksson, Zach Ross and Jen Andrews, Caltech; Elizabeth Cochran, USGS Pasadena The most recent Cahuilla swarm, which started in mid-2016, has grown steadily in number of events (currently ~6,300 of magnitude larger than 0.3) and

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08/14/2018, M4.4 near Aguanga

14 Aug 2018 18:24:26 PDT, (33.477, -116.803), depth 1.9km, 7km NE of Aguanga, California Aftershocks: so far (16 Aug 2018, 10:48AM PDT) there have been 435 aftershocks recorded, the largest M2.9 (smallest M0.0). More may be expected in the next

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