Earthquakes by city United States 100 km
Seismic city profile

San Marcos

San Marcos, United States: 210 earthquakes of magnitude 4.0+ detected within 100 km.

Population
92,931
Residents in the indexed city record.
Earthquakes
210
Earthquakes at M4.0+ nearby.
Max magnitude
6.7
Strongest recorded event in the current radius.
Timezone
America/Los_Angeles
Coordinates 33.143, -117.166
Nearby activity pulse
Last 30 days
0
Last 12 months
0
Last nearby event: 2025-04-14 17:08 UTC
Strongest nearby event
M 6.7
US
1918-04-21 22:32 UTC

Map

Earthquakes within 100 km of San Marcos

The map centers on San Marcos and highlights the most recent earthquakes detected within 100 km.

Average magnitude
4.4
Average depth
8.1 km

Timeline

Recent seismic activity

Latest 25 events shown
UTC Magnitude Region Depth
2025-04-14 17:08 M 5.2 Escondido
United States
14.3 km
2024-05-01 20:49 M 4.1
Santa Ana
United States
4.6 km
2023-04-01 01:16 M 4.2
Oceanside
United States
13.0 km
2022-12-31 12:12 M 4.1
Indio
United States
3.9 km
2022-01-30 17:46 M 4.0
Oceanside
United States
13.3 km
2020-04-04 01:53 M 4.9
Indio
United States
10.5 km
2018-08-15 01:24 M 4.4
Escondido
United States
1.9 km
2016-06-10 08:04 M 5.2 Indio
United States
12.3 km
2016-01-06 14:42 M 4.4
Hemet
United States
16.7 km
2013-03-11 16:56 M 4.7
La Quinta
United States
10.9 km
2012-12-22 21:37 M 4.0
Tijuana
Mexico
7.1 km
2012-10-08 00:39 M 4.2
Tijuana
Mexico
10.8 km
2011-09-14 14:44 M 4.1
Moreno Valley
United States
16.3 km
2010-07-07 23:53 M 5.4 Indio
United States
12.3 km
2010-06-13 03:09 M 4.2
Indio
United States
4.2 km
2010-06-13 03:08 M 4.5
Indio
United States
11.2 km
2010-03-13 16:32 M 4.2
Tijuana
Mexico
5.0 km
2010-03-09 04:18 M 4.0
Tijuana
Mexico
4.8 km
2010-02-13 21:39 M 4.1
Riverside
United States
8.0 km
2010-01-16 12:03 M 4.3
Moreno Valley
United States
13.1 km
2010-01-12 02:36 M 4.3
Yucaipa
United States
8.8 km
2009-06-20 01:00 M 4.1
San Diego
United States
14.0 km
2008-11-17 12:35 M 4.1
Escondido
United States
10.8 km
2008-05-09 22:38 M 4.1
Indio
United States
9.3 km
2008-05-01 03:55 M 4.2
Indio
United States
9.2 km

Monthly profile

Recent monthly trend

Historic snapshot

Earthquakes history

Year Max magnitude Earthquakes