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Earthquakes Near San Antonio, Texas 78255 Today

Live data from USGS · Monitoring ZIP code 78255 Updated just now

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

📱 Get earthquake alerts — download the app for real-time notifications

Recent Earthquakes Near San Antonio, Texas

3 earthquakes have been recorded within 250 miles of San Antonio, Texas in the past 24 hours. Alertra monitors seismic activity near ZIP code 78255 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 Antonio, this earthquake watch dashboard provides real-time magnitude data, an interactive seismic map, and earthquake history going back 15+ years.

Earthquake Alerts for San Antonio, Texas

Alertra delivers real-time earthquake alerts for San Antonio and the surrounding 78255 area. When seismic activity is detected nearby, push notifications are sent within 60 seconds — no manual earthquake watch required.

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

📊 Earthquake Watch — San Antonio

Live seismic risk assessment · Updated every 60 seconds from USGS

Current Threat Level
All Quiet
LowModerateHigh
Threat score: 4 / 100

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

Earthquakes nearby 3
Closest to you M1.2, 76 mi
Strongest in last 24hr M1.6, Not felt
Last felt M4.0+ 250 days ago
Tracking Area
San Antonio
LIVE EARTHQUAKES
Found 3 in region
Major (6.0+)
Moderate (4.0 - 5.9)
Minor (Below 4.0)
Your Location

🌍 Recent Earthquakes Near San Antonio

Past 24 hours within 250 miles · Source: USGS

Showing events within 250 miles · Past 24 hours · Source: USGS
Sort by:
MagnitudeWhat You'd FeelLocationDistanceWhen
M1.6 		Not felt 16 km NNE of Hermleigh, Texas 246 mi 6:22 PM Details →
M1.2 		Not felt 2 km NW of Runge, Texas 76 mi 8:31 AM Details →
M0.8 		Not felt 22 km SSE of Stanton, Texas 241 mi 2:35 PM Details →

📈 Earthquake History — San Antonio

Since 2006 · M2.5+ · 250 mi radius

San Antonio has recorded 761 earthquakes of magnitude 2.5 or greater within 250 miles since 2006. The largest was a M5.2 on Dec 16, 2022, located Range Hill, Texas. On average, the area experiences approximately 99 notable seismic events per year.

M2.5+ in Past 7 Days

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Since 2006 · M2.5+ · 250 mi

Yearly Activity · 761 events

Past Month
View:
M2.5–4 (bars)
M4+ (line, right axis)
Yearly Earthquake Activity by Magnitude05010015020002468'07'10'13'16'19'22'252006: 1 (M2.5–4), 0 (M4+)2007: 1 (M2.5–4), 0 (M4+)2008: 11 (M2.5–4), 0 (M4+)2009: 8 (M2.5–4), 0 (M4+)2010: 5 (M2.5–4), 0 (M4+)2011: 9 (M2.5–4), 1 (M4+)2012: 13 (M2.5–4), 0 (M4+)2013: 31 (M2.5–4), 0 (M4+)2014: 17 (M2.5–4), 0 (M4+)2015: 42 (M2.5–4), 2 (M4+)2016: 3 (M2.5–4), 0 (M4+)2017: 10 (M2.5–4), 0 (M4+)2018: 35 (M2.5–4), 1 (M4+)2019: 41 (M2.5–4), 0 (M4+)2020: 19 (M2.5–4), 0 (M4+)2021: 57 (M2.5–4), 0 (M4+)2022: 49 (M2.5–4), 0 (M4+)2023: 100 (M2.5–4), 2 (M4+)2024: 161 (M2.5–4), 7 (M4+)2025: 85 (M2.5–4), 2 (M4+)2026: 47 (M2.5–4), 1 (M4+)
Event count (bars)
Seismic energy index (line)
Yearly Seismic Energy Release050100150200050.0M100.0M'07'10'13'16'19'22'252006: 1 events, Energy: 22.4k2007: 1 events, Energy: 11.2k2008: 11 events, Energy: 853.0k2009: 8 events, Energy: 201.9k2010: 5 events, Energy: 799.2k2011: 10 events, Energy: 16.1M2012: 13 events, Energy: 747.2k2013: 31 events, Energy: 1.9M2014: 17 events, Energy: 564.6k2015: 44 events, Energy: 3.3M2016: 3 events, Energy: 50.8k2017: 10 events, Energy: 168.2k2018: 36 events, Energy: 2.0M2019: 41 events, Energy: 860.5k2020: 19 events, Energy: 374.5k2021: 57 events, Energy: 1.5M2022: 49 events, Energy: 1.6M2023: 102 events, Energy: 18.4M2024: 168 events, Energy: 94.5M2025: 87 events, Energy: 13.4M2026: 48 events, Energy: 4.0M
Largest Recorded
M5.2
Range Hill, Texas
Dec 16, 2022
Avg Noticeable / Year
1.6
Estimated felt (MMI ≥ II)

Strongest Recorded Earthquakes

M5.2 Dec 16, 2022
Range Hill, Texas
M5.1 Sep 17, 2024
2024 North of Tarzan, Texas Earthquake
M5.1 Jul 26, 2024
17 km NNE of Hermleigh, Texas
M4.9 Mar 5, 2026
2026 Red River Parish, Louisiana Earthquake
M4.9 Jun 5, 2025
56 km NW of Ocampo, Mexico
M4.9 Jul 23, 2024
17 km NNE of Hermleigh, Texas
📊 Looking for detailed historical data?

🛡️ Earthquake Safety — San Antonio, Texas

What San Antonio 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.

🛡️ 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.

🚪 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

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

📍 Nearby Earthquake Monitoring

Cities near San Antonio with live tracking

🔔 Get earthquake alerts for San Antonio
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 Antonio. Our threat scores, historical trend charts, and proximity alerts are all derived from this data — updated every 60 seconds.

Earthquake FAQ — San Antonio, Texas

Was there an earthquake in San Antonio today?

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

Did an earthquake just happen near San Antonio?

Check the live earthquake table above for the most recent seismic events near 78255. Alertra detects earthquakes right now as they happen and can send you instant earthquake alerts for San Antonio.

What is the earthquake history for San Antonio, Texas?

Alertra tracks USGS seismic records going back 15+ years for the San Antonio area. View the historical trends chart above to see yearly earthquake frequency and the largest recorded event near 78255.

How do I get earthquake alerts for San Antonio?

Download the Alertra app to receive push notifications within 60 seconds of any earthquake detected near 78255. Alertra monitors USGS seismic data 24/7 — no manual earthquake watch required.

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