Shallow M4.1 Earthquake struck on Sunday Afternoon near Thousand Oaks in The United States.

Written by Earthquakelist.org on March 9th, 2025. Last updated March 14th, 2025.

Under land 8 miles from Thousand Oaks in The United States, a shallow MAG-4.1 earthquake occurred in the early afternoon of Sunday March 9th, 2025. The earthquake struck near a very densely populated region. The USGS has indicated there is a potential risk at tsunami's following this earthquake. Another country near the epicenter is Mexico.

Earthquake Summary

The earthquake struck on land in The United States, 8 miles (13 km) south-southwest of Thousand Oaks in California. The center of this earthquake had a very shallow depth of 7 km. Shallow earthquakes usually have a larger impact than earthquakes deep in the earth.

Date and Time:	Mar 9, 2025 01:03PM (Los Angeles Time) - Mar 9, 2025 20:03 Universal Time.
Location:	8 mi SSW of Thousand Oaks, California, The United States. Coordinates 34°4'5"N 118°53'40"W.
Map:	Map of area around epicenter. Click to open in Google Maps.
Magnitude:	MAG 4.1 Detected by 223 stations. Maximum Error Range ±0.2 .
Depth:	7 mi (11 km) A very shallow depth.
Max. Intensity:	V Moderate On the Modified Mercalli Scale.
Tsunami Risk:	Potential tsunami risk The USGS has indicated there is a potential risk at tsunami's following this earthquake. Always stay cautious - More info here.

Potential tsunami risk

DISCLAIMER: We strongly suggest to closely monitor advice from local authorities with regards to tsunami risks. Our analysis is based on automatically collected data from external sources, and these might contain mistakes. In addition, earthquakes can cause landslides that may lead to a tsunami, or be a followed by another, potentially stonger, earthquake.

There is a potential tsunami risk in the aftermath of this earthquake, immediately evacuate to higher grounds away from coastal areas and monitor advice from local authorities. The US Geographic Survey organization has indicated a potential risk for tsunami's following this earthquake.

Tsunami Risk Factors

Factor	Under Sea?	MAG-6.5 or stronger?	Shallow depth?
Explanation	Almost all tsunami's are caused by earthquakes with their epicenter under sea or very near the sea. However stay cautious in coastal areas as earthquakes on land may cause landslides into sea, potentially still causing a local tsunami.	Under MAG 6.5: Very unlikely to cause a tsunami. MAG 6.5 to 7.5: Destructive tsunami's do occur, but are uncommon. Likely to observe small sea level changes. MAG 7.6+: Earthquakes with these magnitudes might produce destructive tsunami's.	Most destructive tsunami's are caused by shallow earthquakes with a depth between 0 and 100km under the surface of the earth. Deeper tsunami's are unlikely to displace to ocean floor.
This Earthquake	This earthquake appears to have struck on land near a coastal area (2 mi from the sea).	Not this earthquake. This earthquake had a magnitude of 4.1. Earthquakes of this strength are unlikely to trigger a tsunami.	This earthquake occurred at a depth of of 7 mi (11 km). Earthquakes this shallow could trigger a tsunami.

Minimal impact predicted

Based on scientific estimates by the US Geographic Survey (USGS), the risk of high fatalities for this earthquake is classified at level GREEN (low). They expect an 65% likelyhood of between 0 and 1 fatalities, and a 96% chance that the number of fatalities falls no higher than 10.

The USGS classifies the economic impact of this earthquake at level GREEN (low). They expect an 65% likelyhood of between 0 and 1 million US Dollars in economic damage and impact, and a 96% chance that the economic impact of this earthquake falls no higher than 10 million USD.

Roughly 18 million people exposed to shaking

An estimated 18 million have been exposed to shaking (An MMI or Modified Mercalli Intensity level II or higher) as a result of this earthquake according scientific estimates published by the USGS.

Light shaking and likely no damage may have been experienced by an estimated 339,500 people. At IV, it is the highest MMI level this earthquake has caused. Intensity level II was experienced by a large group of people (around 9 million). In their region, very weak shaking and no damage can be expected. All exposure to shaking was within the borders of Mexico .

People	MMI Level	Shaking	Damage
7,732,000	I	Not noticable	None
8,796,000	II	Very weak	None
8,764,000	III	Weak	Probably none
339,500	IV	Light	Likely none
0	V	Moderate	Very light
0	VI	Strong	Light
0	VII	Very Strong	Moderate
0	VIII	Severe	Moderate to heavy
0	IX	Violent	Heavy
0	X	Extreme	Very heavy

Nearby towns and cities

The United States and Mexico are both located within 300km distance of the epicenter of the earthquake.

Located 8 miles (13 km) southwest of the epicenter of this earthquake, Agoura Hills (California, The United States) is the nearest significant population center. The intensity of shaking and damage in Agoura Hills is estimated to be around level IV on the Modified Mercalli Intensity scale (light shaking, likely no damage).

Major cities near this earthquake: Los Angeles is located 37 mi to the east and experienced an intensity of II (very weak shaking, no damage). Thousand Oaks is located 8 mi to the north-northeast and experienced an intensity of IV (light shaking, likely no damage). Oxnard is located 19 mi to the west-northwest and experienced an intensity of III (weak shaking, probably no damage).

An overview of nearby towns and cities is available in the overview below. If places don't have intensity data available, it likely means the experienced impact in those places was fairly small.

Overview of nearby places

Cities and Towns around the epicenter of this earthquake.
Distance	Place	Intensity (MMI)
8 mi (13 km) NNE from epicenter	Thousand Oaks California, The United States.	IV Light
8 mi (13 km) NE from epicenter	Agoura Hills California, The United States.	IV Light
11 mi (17 km) ENE from epicenter	Agoura California, The United States.	IV Light
13 mi (21 km) NW from epicenter	Camarillo California, The United States.	IV Light
15 mi (24 km) N from epicenter	Moorpark California, The United States.	IV Light
16 mi (25 km) NNE from epicenter	Simi Valley California, The United States.	III Weak
16 mi (26 km) ENE from epicenter	Calabasas California, The United States.	III Weak
17 mi (27 km) ENE from epicenter	West Hills California, The United States.	III Weak
18 mi (29 km) ENE from epicenter	Woodland Hills California, The United States.	III Weak
18 mi (29 km) WNW from epicenter	Port Hueneme California, The United States.	III Weak
19 mi (30 km) WNW from epicenter	Oxnard California, The United States.	III Weak
19 mi (31 km) ENE from epicenter	Canoga Park California, The United States.	III Weak
21 mi (34 km) NE from epicenter	Chatsworth California, The United States.	III Weak
22 mi (35 km) NNW from epicenter	Santa Paula California, The United States.	III Weak
23 mi (37 km) ENE from epicenter	Northridge California, The United States.	III Weak
24 mi (38 km) E from epicenter	Santa Monica California, The United States.	III Weak
24 mi (38 km) ENE from epicenter	Encino California, The United States.	III Weak
25 mi (41 km) ESE from epicenter	Venice California, The United States.	III Weak
26 mi (42 km) ENE from epicenter	Sherman Oaks California, The United States.	III Weak
26 mi (42 km) ENE from epicenter	North Hills California, The United States.	III Weak
27 mi (43 km) ENE from epicenter	Valley Glen California, The United States.	III Weak
27 mi (43 km) ENE from epicenter	Van Nuys California, The United States.	III Weak
27 mi (43 km) WNW from epicenter	Ventura California, The United States.	III Weak
29 mi (46 km) E from epicenter	Culver City California, The United States.	III Weak
30 mi (48 km) NE from epicenter	Santa Clarita California, The United States.	III Weak
30 mi (49 km) NNE from epicenter	Valencia California, The United States.	III Weak
30 mi (49 km) ENE from epicenter	North Hollywood California, The United States.	III Weak
31 mi (50 km) E from epicenter	Universal City California, The United States.	II Weak
32 mi (51 km) ESE from epicenter	Inglewood California, The United States.	III Weak
32 mi (52 km) E from epicenter	Hollywood California, The United States.	II Weak
33 mi (53 km) ESE from epicenter	Redondo Beach California, The United States.	III Weak
33 mi (53 km) ESE from epicenter	Hawthorne California, The United States.	III Weak
34 mi (55 km) ENE from epicenter	Burbank California, The United States.	II Weak
34 mi (55 km) NE from epicenter	Canyon Country California, The United States.	II Weak
34 mi (55 km) E from epicenter	Koreatown California, The United States.	II Weak
35 mi (57 km) ESE from epicenter	Torrance California, The United States.	III Weak
37 mi (59 km) E from epicenter	Glendale California, The United States.	II Weak
37 mi (60 km) E from epicenter	Los Angeles California, The United States.	II Weak
39 mi (62 km) ESE from epicenter	Carson California, The United States.	III Weak
40 mi (64 km) E from epicenter	South Gate California, The United States.	III Weak
40 mi (64 km) E from epicenter	Boyle Heights California, The United States.	II Weak
40 mi (65 km) ESE from epicenter	Compton California, The United States.	III Weak
42 mi (67 km) E from epicenter	East Los Angeles California, The United States.	III Weak
43 mi (70 km) E from epicenter	Pasadena California, The United States.	II Weak
45 mi (72 km) E from epicenter	Downey California, The United States.	II Weak
45 mi (73 km) ESE from epicenter	Long Beach California, The United States.	III Weak
50 mi (80 km) E from epicenter	El Monte California, The United States.	III Weak
57 mi (91 km) NE from epicenter	Palmdale California, The United States.	II Weak
58 mi (94 km) ESE from epicenter	Huntington Beach California, The United States.	II Weak
58 mi (94 km) ESE from epicenter	Garden Grove California, The United States.	II Weak
58 mi (94 km) ESE from epicenter	Anaheim California, The United States.	II Weak
247 km (153 mi) SE from epicenter	Tijuana Baja California, Mexico.	I Not felt

Earthquake Intensity Map

The intensity in shaking and damage by this earthquake is illustrated through the map below. The highest intensity measured for this earthquake is IV.

I Not felt

II Weak

III Weak

IV Light

V Moderate

VI Strong

VII Very Strong

VIII Severe

IX Violent

X Extreme

Earthquake Intensity Map based on Shakemap Data provided by USGS.

Shaking reported by 1 person

People that feel an earthquake may report their experience to the US Geographic Survey. Currently, 1 person has reported shaking in one place in Mexico.We keep updating this article as more ground reports become available. You may report that you felt this earthquake here.

Places with most reports:

San Felipe, Baja California, Mexico: 1 person.

4 Aftershocks detected

After this earthquake struck, 4 smaller aftershocks occurred. At a distance of 0.4 mi (0.6 km) southwest of this earthquake, an aftershock struck 13 hrs later. It measured a magnitude of 3.2

Overview of foreshocks and aftershocks

Detected MAG2.5+ earthquakes within within 100km (62 mi), that occurred in the three days before and after the main shock.
Classification	Magnitude	When	Where
Main Shock This Earthquake	M 4.1	Mar 9, 2025 01:03PM (Los Angeles Time)	-
Aftershock	M 2.7	4 mins later Mar 9, 2025 01:07PM (Los Angeles Time)	0.9 mi (1.5 km) W from Main Shock.
Aftershock	M 2.5	5 mins later Mar 9, 2025 01:08PM (Los Angeles Time)	0.4 mi (0.6 km) SSW from Main Shock.
Aftershock	M 3.2	13 hrs later Mar 10, 2025 02:23AM (Los Angeles Time)	0.4 mi (0.6 km) SW from Main Shock.
Aftershock	M 2.6	23 hrs later Mar 10, 2025 11:49AM (Los Angeles Time)	0.6 mi (1 km) SSE from Main Shock.

More earthquakes coming?

The risk of aftershocks decreases rapidly over time. Usually, aftershocks are at least one order of magnitude lower than a main shock.

In only six percent of cases, significant earthquakes are followed by a larger main shock, making the current earthquake a foreshock. While the chance of this happening is not so large, it is adviced to maintain cautiousness in the hours and days following a major earthquake.

Read: How to Stay Safe during an Earthquake (cdc.gov).

Earthquakes like this happen often in the region

Earthquakes of this strength are very common in the region. This is the strongest earthquake to hit since February 14th, 2025, when a 4.3 magnitude earthquake hit 157 mi (253 km) further north-northwest. An even stronger magnitude 7.1 earthquake struck on July 6th, 2019.

In total, 131 earthquakes with a magnitude of 4.1 or higher have been registered within 300km (186 mi) of this epicenter in the past 10 years. This comes down to an average of once every 28 days.

Sources

Last updated 14/03/25 23:58 (). As more information on this earthquake becomes available this article will be updated. This article is automatically composed based on data originating from multiple sources.