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A shallow magnitude 3.6 earthquake was reported in the afternoon near Simi Valley, Ventura County, California, USA.
According to the United States Geological Survey, the quake hit on Saturday, December 13th, 2025, at 5:03 pm local time at a shallow depth of 6.9 miles. Shallow earthquakes are felt more strongly than deeper ones as they are closer to the surface. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
Our monitoring service identified a second report from The Incorporated Research Institutions for Seismology (IRIS) which listed the quake at magnitude 3.6 as well. A third agency, the European-Mediterranean Seismological Centre (EMSC), reported the same quake at magnitude 3.6.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in Fillmore (pop. 15,500) located 8 miles from the epicenter, and Santa Paula (pop. 30,500) 9 miles away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Moorpark (pop. 36,100) located 16 miles

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Published: 13 December 2025

Categories: Global Earthquake Activity

RSS feed source: USGS Earthquake Hazards Program

Date and TimeMag
DepthDistanceLocationDetailsMap Oct 13, 10:09 pm (Jakarta)

4.2

10 km102 km (63 mi) to the NE Southern Sumatra, Indonesia InfoOct 3, 06:03 pm (GMT +7)

4.9

18 km28 km (17 mi) to the N Indian Ocean, Bengkulu, 78 km east of Pulau Taitaitanopo Island, Indonesia InfoSep 14, 09:49 pm (GMT +7)

4.9

57 km70 km (44 mi) to the NW Southern Sumatra, Indonesia 1 report InfoJul 25, 10:20 am (GMT +7)

4.9

46 km10.2 km (6.4 mi) to the W Indian Ocean, Bengkulu, 77 km east of Pulau Taitaitanopo Island, Indonesia InfoJul 19, 02:33 am (GMT +7)

4.1

25 km29 km (18 mi) to the SE Indian Ocean, 93 km northwest of Bengkulu, Kota Bengkulu, Bengkulu, Indonesia InfoJul 2, 09:27 pm (GMT +7)

4.8

56 km81 km (50 mi) to the SE Indian Ocean, 47 km west of Bengkulu, Kota Bengkulu, Bengkulu, Indonesia InfoMay 27, 03:09 pm (GMT +7)

4.8

9 km58 km (36 mi) to the SE Indian Ocean, 74 km west of Bengkulu, Kota Bengkulu, Bengkulu, Indonesia 1 report InfoAug 13, 2017 10:08 am (Jakarta)

6.4

51 km58 km (36 mi) to the SE Indian Ocean, 66 km west of Bengkulu, Kota Bengkulu, Bengkulu, Indonesia 22 reports InfoJul 6, 2013 12:05 pm (Jakarta)

6.0

21 km78 km (48 mi) to the W Indian Ocean, 0.6 km southwest of Pulau Simungguk Island, Indonesia 2 reports InfoSep 14, 2012 11:51 am (Jakarta)

6.2

19 km74 km (46 mi) to the W Indian Ocean, 6.5 km southeast of Pulau Simungguk Island, Indonesia InfoOct 26, 2010 05:59 am (Jakarta)

5.9

19 km89 km (55 mi) to the W Indian Ocean, 15 km south of Pulau Taitaitanopo Island, Indonesia InfoOct 25, 2010 09:42

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M 5.1 – 121 km WNW of Bengkulu, Indonesia

Moderate mag. 4.0 earthquake – Perdizes, Minas Gerais, Brazil, on 22:10:39

Small magnitude 3.6 earthquake 20 miles northwest of Simi Valley, California, United States

Moderate mag. 4.8 earthquake – Indian Ocean, Bengkulu, 86 km east of Pulau Taitaitanopo Island, Indonesia, on Sunday, Dec 14, 2025, at 07:58 am (GMT +7)