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234 earthquakes globally today

Earthquakes Near San Marcos, California 92078 Today

Live data from USGS Β· Monitoring ZIP code 92078 Updated just now

48 tiny quakes nearby. Too small to feel. Completely normal background activity.

πŸ“± Get earthquake alerts β€” download the app for real-time notifications

Recent Earthquakes Near San Marcos, California

48 earthquakes have been recorded within 250 miles of San Marcos, California in the past 24 hours. Alertra monitors seismic activity near ZIP code 92078 using live data from the U.S. Geological Survey (USGS), updated every 60 seconds. Whether you felt shaking or are checking if an earthquake just happened near San Marcos, this earthquake watch dashboard provides real-time magnitude data, an interactive seismic map, and earthquake history going back 15+ years.

Earthquake Alerts for San Marcos, California

Alertra delivers real-time earthquake alerts for San Marcos and the surrounding 92078 area. When seismic activity is detected nearby, push notifications are sent within 60 seconds β€” no manual earthquake watch required.

Coming soon! We're working on bringing monitoring to Alertra.

πŸ“Š Earthquake Watch β€” San Marcos

Live seismic risk assessment Β· Updated every 60 seconds from USGS

Current Threat Level
All Quiet
LowModerateHigh
Threat score: 5 / 100

Some seismic activity near San Marcos. Most too small to feel.

Earthquakes nearby 48
Closest to you M0.6, 26 mi
Strongest in last 24hr M2.5, Rarely felt
Last felt M4.0+ 17 days ago
Tracking Area
San Marcos
LIVE EARTHQUAKES
Found 48 in region
Major (6.0+)
Moderate (4.0 - 5.9)
Minor (Below 4.0)
Your Location

🌍 Recent Earthquakes Near San Marcos

Past 24 hours within 250 miles Β· Source: USGS

Showing events within 250 miles Β· Past 24 hours Β· Source: USGS
Sort by:
MagnitudeWhat You'd FeelLocationDistanceWhen
M2.5 		Rarely felt 10 km WSW of Searles Valley, CA 180 mi 1:06 AM Details β†’
M2.1 		Rarely felt 13 km NE of Ojai, CA 149 mi 9:18 PM Details β†’
M2.0 		Rarely felt 12 km SSW of Borrego Springs, CA 43 mi 2:24 PM Details β†’
M1.7 		Not felt 7 km E of Phelan, CA 93 mi 10:20 AM Details β†’
M1.7 		Not felt 26 km SSW of Ocotillo Wells, CA 54 mi 7:03 AM Details β†’
M1.7 		Not felt 13 km SE of Tehachapi, CA 149 mi 6:31 PM Details β†’
M1.6 		Not felt 45 km NE of Holtville, CA 127 mi 5:52 PM Details β†’
M1.6 		Not felt 5 km SSW of Brawley, CA 95 mi 4:39 AM Details β†’
M1.6 		Not felt 17 km SSW of Pine Mountain Club, CA 159 mi 1:34 PM Details β†’
M1.4 		Not felt 5 km SSW of Los Alamos, CA 209 mi 1:18 AM Details β†’
M1.4 		Not felt 16 km ESE of Anza, CA 47 mi 9:13 PM Details β†’
M1.4 		Not felt 4 km SW of Brawley, CA 95 mi 6:02 PM Details β†’
M1.2 		Not felt 18 km ESE of Julian, CA 45 mi 10:50 PM Details β†’
M1.2 		Not felt 26 km SSW of Ocotillo Wells, CA 54 mi 6:50 AM Details β†’
M1.1 		Not felt 9 km E of Cabazon, CA 62 mi 8:06 AM Details β†’
M1.1 		Not felt 5 km WSW of Anza, CA 39 mi 11:14 PM Details β†’
M1.1 		Not felt 18 km ESE of Julian, CA 45 mi 8:06 PM Details β†’
M1.1 		Not felt 14 km SSW of Searles Valley, CA 176 mi 1:25 PM Details β†’
M1.0 		Not felt 3 km ENE of Moreno Valley, CA 56 mi 10:34 AM Details β†’
M1.0 		Not felt 10 km SSW of Idyllwild, CA 45 mi 2:04 AM Details β†’
M1.0 		Not felt 1 km NW of Loma Linda, CA 65 mi 10:07 PM Details β†’
M1.0 		Not felt 11 km SSW of Idyllwild, CA 44 mi 7:04 PM Details β†’
M0.9 		Not felt 8 km SSW of Lytle Creek, CA 77 mi 8:35 AM Details β†’
M0.9 		Not felt 1 km SSE of Loma Linda, CA 64 mi 4:04 PM Details β†’
M0.9 		Not felt 7 km SSW of Redlands, CA 61 mi 8:58 AM Details β†’
M0.8 		Not felt 25 km SSW of Ocotillo Wells, CA 54 mi 5:51 AM Details β†’
M0.8 		Not felt 2 km SE of Redlands, CA 64 mi 7:58 AM Details β†’
M0.8 		Not felt 11 km SSW of Borrego Springs, CA 44 mi 1:51 PM Details β†’
M0.8 		Not felt 7 km SSE of Redlands, CA 61 mi 9:54 AM Details β†’
M0.8 		Not felt 10 km E of Anza, CA 46 mi 7:02 PM Details β†’
M0.8 		Not felt 3 km SE of Redlands, CA 64 mi 9:39 AM Details β†’
M0.8 		Not felt 9 km N of Borrego Springs, CA 49 mi 8:26 PM Details β†’
M0.7 		Not felt 26 km SSW of Ocotillo Wells, CA 54 mi 7:10 AM Details β†’
M0.7 		Not felt 12 km SW of Searles Valley, CA 178 mi 6:52 PM Details β†’
M0.7 		Not felt 5 km SSW of Redlands, CA 62 mi 11:41 AM Details β†’
M0.6 		Not felt 15 km SSW of Searles Valley, CA 176 mi 7:52 AM Details β†’
M0.6 		Not felt 9 km SSE of Gorman, CA 145 mi 4:13 PM Details β†’
M0.6 		Not felt 2 km NE of Palomar Observatory, CA 26 mi 3:49 PM Details β†’
M0.6 		Not felt 5 km NNE of Lake Henshaw, CA 28 mi 8:19 AM Details β†’
M0.6 		Not felt 16 km ESE of Anza, CA 47 mi 2:44 AM Details β†’
M0.4 		Not felt 25 km SSW of Ocotillo Wells, CA 54 mi 7:30 AM Details β†’
M0.4 		Not felt 4 km WNW of Borrego Springs, CA 46 mi 11:29 AM Details β†’
M0.4 		Not felt 21 km ESE of Anza, CA 50 mi 4:03 AM Details β†’
M0.4 		Not felt 18 km ESE of Julian, CA 45 mi 4:55 PM Details β†’
M0.3 		Not felt 8 km NNE of Beaumont, CA 62 mi 12:50 PM Details β†’
M0.3 		Not felt 17 km ESE of Anza, CA 47 mi 5:39 AM Details β†’
M0.2 		Not felt 9 km SSW of Idyllwild, CA 45 mi 2:54 AM Details β†’
M0.0 		Not felt 10 km SE of Winchester, CA 38 mi 10:03 AM Details β†’

πŸ“ˆ Earthquake History β€” San Marcos

Since 2010 Β· M2.5+ Β· 250 mi radius

San Marcos has recorded 12,937 earthquakes of magnitude 2.5 or greater within 250 miles since 2010. The largest was a M7.1 on Jul 6, 2019, located Ridgecrest Earthquake Sequence. On average, the area experiences approximately 1236 notable seismic events per year.

M2.5+ in Past 7 Days

Sat
0
β€”
Sun
0
β€”
Mon
2
MAX M3.6
Tue
0
β€”
Wed
3
MAX M3.6
Thu
0
β€”
Fri
0
β€”
Since 2010 Β· M2.5+ Β· 250 mi

Yearly Activity Β· 12937 events

Past Week
View:
M2.5–4 (bars)
M4+ (line, right axis)
Yearly Earthquake Activity by Magnitude01k2k3k4k050100150'10'13'16'19'22'252010: 2,338 (M2.5–4), 88 (M4+)2011: 684 (M2.5–4), 30 (M4+)2012: 648 (M2.5–4), 36 (M4+)2013: 445 (M2.5–4), 18 (M4+)2014: 446 (M2.5–4), 22 (M4+)2015: 338 (M2.5–4), 11 (M4+)2016: 432 (M2.5–4), 16 (M4+)2017: 319 (M2.5–4), 5 (M4+)2018: 368 (M2.5–4), 18 (M4+)2019: 3,020 (M2.5–4), 138 (M4+)2020: 828 (M2.5–4), 33 (M4+)2021: 534 (M2.5–4), 20 (M4+)2022: 375 (M2.5–4), 15 (M4+)2023: 394 (M2.5–4), 16 (M4+)2024: 591 (M2.5–4), 35 (M4+)2025: 414 (M2.5–4), 10 (M4+)2026: 242 (M2.5–4), 10 (M4+)
Event count (bars)
Seismic energy index (line)
Yearly Seismic Energy Release01k2k3k4k020.0B40.0B60.0B'10'13'16'19'22'252010: 2,426 events, Energy: 927.2M2011: 714 events, Energy: 142.6M2012: 684 events, Energy: 3.2B2013: 463 events, Energy: 91.4M2014: 468 events, Energy: 174.0M2015: 349 events, Energy: 63.2M2016: 448 events, Energy: 140.3M2017: 324 events, Energy: 25.1M2018: 386 events, Energy: 196.6M2019: 3,158 events, Energy: 49.9B2020: 861 events, Energy: 1.1B2021: 554 events, Energy: 163.7M2022: 390 events, Energy: 2.1B2023: 410 events, Energy: 122.8M2024: 626 events, Energy: 270.3M2025: 424 events, Energy: 102.3M2026: 252 events, Energy: 66.7M
Largest Recorded
M7.1
Ridgecrest Earthquake Sequence
Jul 6, 2019
Avg Noticeable / Year
50.8
Estimated felt (MMI β‰₯ II)

Strongest Recorded Earthquakes

M7.1 Jul 6, 2019
Ridgecrest Earthquake Sequence
M6.5 May 15, 2020
Monte Cristo Range, NV Earthquake
M6.4 Jul 4, 2019
Ridgecrest Earthquake Sequence
M6.3 Dec 14, 2012
279 km SSW of Avalon, California
M6.2 Nov 22, 2022
28 km SW of Las Brisas, Mexico
M6.0 Jul 8, 2021
Antelope Valley, CA
πŸ“Š Looking for detailed historical data?

πŸ›‘οΈ Earthquake Safety β€” San Marcos, California

What San Marcos residents should know before, during, and after an earthquake

🏠 Step 1

Before: Secure Your Space

Bolt heavy furniture to walls. Keep an emergency kit within arm's reach of where you sleep. Know your exits.

πŸ›‘οΈ Step 2

During: Drop, Cover, Hold On

Drop to your hands and knees. Take cover under sturdy furniture. Hold on until the shaking stops. Stay away from windows.

πŸšͺ Step 3

After: Check and Evacuate

Check for injuries and damage. If you smell gas, leave immediately and call 911. Expect aftershocks.

72-Hour Emergency Kit

βœ“ 1 gallon of water per person per day
βœ“ Non-perishable food (3-day supply)
βœ“ Battery-powered NOAA weather radio
βœ“ Flashlight and extra batteries
βœ“ First aid kit
βœ“ Whistle to signal for help
βœ“ N95 dust masks
βœ“ Plastic sheeting and duct tape
βœ“ Wrench or pliers to turn off utilities
βœ“ Manual can opener

Notable US Seismic History

1994 Northridge, CA
M6.7
57 fatalities, $50B in damage. One of the costliest US natural disasters.
2011 Virginia
M5.8
Felt across 22 states. The most widely felt earthquake in US history.
2018 Anchorage, AK
M7.1
Major infrastructure damage across south-central Alaska.

πŸ“ Nearby Earthquake Monitoring

Cities near San Marcos with live tracking

πŸ”” Get earthquake alerts for San Marcos
Alertra monitors live data 24/7 and sends push notifications the moment a earthquake is detected near you.

🏒 About Alertra

Alertra is an earthquake monitoring platform built by a team of engineers in Arizona focused on natural disaster safety technology. We provide real-time earthquake alerts and risk assessments to help communities prepare before disaster strikes.

Alertra ingests real-time seismic data from the U.S. Geological Survey (USGS) and combines it with over 15 years of legacy earthquake records to build localized risk models for communities like San Marcos. Our threat scores, historical trend charts, and proximity alerts are all derived from this data β€” updated every 60 seconds.

Earthquake FAQ β€” San Marcos, California

Was there an earthquake in San Marcos today?

48 tiny quakes nearby. Too small to feel. Completely normal background activity. This page shows all earthquakes detected within 250 miles of San Marcos in the past 24 hours, updated every 60 seconds from USGS.

Did an earthquake just happen near San Marcos?

Check the live earthquake table above for the most recent seismic events near 92078. Alertra detects earthquakes right now as they happen and can send you instant earthquake alerts for San Marcos.

What is the earthquake history for San Marcos, California?

Alertra tracks USGS seismic records going back 15+ years for the San Marcos area. View the historical trends chart above to see yearly earthquake frequency and the largest recorded event near 92078.

How do I get earthquake alerts for San Marcos?

Download the Alertra app to receive push notifications within 60 seconds of any earthquake detected near 92078. Alertra monitors USGS seismic data 24/7 β€” no manual earthquake watch required.

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We're putting the final touches on the Alertra app. Enter your email below to join the waitlist and get early access.