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322 earthquakes globally today

Earthquakes Near Castro Valley, California 94552 Today

Live data from USGS Β· Monitoring ZIP code 94552 Updated just now

54 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 Castro Valley, California

54 earthquakes have been recorded within 250 miles of Castro Valley, California in the past 24 hours. Alertra monitors seismic activity near ZIP code 94552 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 Castro Valley, this earthquake watch dashboard provides real-time magnitude data, an interactive seismic map, and earthquake history going back 15+ years.

Earthquake Alerts for Castro Valley, California

Alertra delivers real-time earthquake alerts for Castro Valley and the surrounding 94552 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€” Castro Valley

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

Current Threat Level
Normal
LowModerateHigh
Threat score: 19 / 100

Some seismic activity near Castro Valley. Most too small to feel.

Earthquakes nearby 54
Closest to you M1.2, 26 mi
Strongest in last 24hr M2.8, Rarely felt
Last felt M4.0+ 4 days ago
Tracking Area
Castro Valley
LIVE EARTHQUAKES
Found 54 in region
Major (6.0+)
Moderate (4.0 - 5.9)
Minor (Below 4.0)
Your Location

🌍 Recent Earthquakes Near Castro Valley

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
M2.8 		Rarely felt 22 km NW of Petrolia, CA 232 mi 6:44 PM Details β†’
M2.7 		Rarely felt 11 km ESE of Gilroy, CA 60 mi 11:11 AM Details β†’
M2.3 		Rarely felt 2 km WSW of Granite Bay, CA 86 mi 8:44 AM Details β†’
M2.1 		Rarely felt 9 km ESE of Cloverdale, CA 88 mi 4:57 PM Details β†’
M2.1 		Rarely felt 6 km SSE of Parkfield, CA 156 mi 11:51 AM Details β†’
M2.1 		Rarely felt 11 km ESE of Gilroy, CA 59 mi 11:56 AM Details β†’
M2.0 		Rarely felt 10 km NNW of Simmler, CA 191 mi 12:53 PM Details β†’
M1.9 		Not felt 25 km WNW of Tonopah, Nevada 247 mi 6:53 PM Details β†’
M1.9 		Not felt 11 km ESE of Willits, CA 133 mi 3:21 AM Details β†’
M1.8 		Not felt 6 km SE of Parkfield, CA 156 mi 11:52 AM Details β†’
M1.8 		Not felt 9 km SSE of Cloverdale, CA 88 mi 9:17 PM Details β†’
M1.6 		Not felt 12 km ESE of Gilroy, CA 60 mi 1:58 PM Details β†’
M1.6 		Not felt 3 km ENE of The Geysers, CA 84 mi 6:17 PM Details β†’
M1.6 		Not felt 7 km NW of The Geysers, CA 88 mi 11:34 PM Details β†’
M1.5 		Not felt 9 km NW of Redwood Valley, CA 131 mi 10:26 AM Details β†’
M1.5 		Not felt 9 km SE of Cloverdale, CA 88 mi 9:19 PM Details β†’
M1.5 		Not felt 5 km NNW of Redwood Valley, CA 129 mi 9:12 AM Details β†’
M1.5 		Not felt 2 km WSW of Wilkerson, CA 200 mi 3:59 AM Details β†’
M1.5 		Not felt 13 km WNW of Calistoga, CA 74 mi 3:01 AM Details β†’
M1.4 		Not felt 2 km W of Glen Ellen, CA 54 mi 6:51 AM Details β†’
M1.3 		Not felt 23 km ENE of San Lucas, CA 123 mi 3:44 PM Details β†’
M1.3 		Not felt 15 km SE of Pinnacles, CA 103 mi 3:42 AM Details β†’
M1.2 		Not felt 3 km SE of Pacifica, CA 26 mi 8:17 PM Details β†’
M1.2 		Not felt 3 km SE of The Geysers, CA 82 mi 8:29 PM Details β†’
M1.1 		Not felt 5 km SSE of Parkfield, CA 156 mi 12:03 PM Details β†’
M1.1 		Not felt 9 km SE of Cloverdale, CA 88 mi 12:38 AM Details β†’
M1.1 		Not felt 10 km NW of The Geysers, CA 90 mi 11:50 AM Details β†’
M1.1 		Not felt 4 km W of Cobb, CA 88 mi 6:52 AM Details β†’
M1.1 		Not felt 11 km NW of The Geysers, CA 91 mi 4:52 PM Details β†’
M1.1 		Not felt 7 km NW of The Geysers, CA 88 mi 1:55 AM Details β†’
M1.0 		Not felt 7 km NW of The Geysers, CA 88 mi 6:57 AM Details β†’
M1.0 		Not felt 13 km ENE of Cloverdale, CA 92 mi 12:21 AM Details β†’
M0.9 		Not felt 11 km WNW of The Geysers, CA 90 mi 7:24 AM Details β†’
M0.9 		Not felt 7 km WNW of Cobb, CA 89 mi 11:34 PM Details β†’
M0.9 		Not felt 8 km WNW of Cobb, CA 89 mi 11:12 PM Details β†’
M0.8 		Not felt 6 km NW of The Geysers, CA 88 mi 3:37 PM Details β†’
M0.8 		Not felt 3 km ESE of The Geysers, CA 83 mi 2:16 AM Details β†’
M0.8 		Not felt 7 km NW of The Geysers, CA 88 mi 10:26 PM Details β†’
M0.8 		Not felt 9 km WNW of The Geysers, CA 89 mi 2:41 PM Details β†’
M0.8 		Not felt 8 km NW of The Geysers, CA 89 mi 3:09 PM Details β†’
M0.8 		Not felt 9 km NW of The Geysers, CA 89 mi 2:40 PM Details β†’
M0.8 		Not felt 2 km NW of The Geysers, CA 85 mi 4:41 AM Details β†’
M0.8 		Not felt 7 km NW of The Geysers, CA 88 mi 1:38 AM Details β†’
M0.7 		Not felt 5 km WNW of Cobb, CA 89 mi 10:40 PM Details β†’
M0.7 		Not felt 6 km WNW of Cobb, CA 89 mi 3:48 PM Details β†’
M0.5 		Not felt 18 km NW of Parkfield, CA 142 mi 1:36 PM Details β†’
M0.5 		Not felt 3 km NNW of The Geysers, CA 86 mi 11:25 AM Details β†’
M0.5 		Not felt 8 km WNW of Cobb, CA 89 mi 11:19 PM Details β†’
M0.4 		Not felt 7 km NW of The Geysers, CA 88 mi 4:28 AM Details β†’
M0.4 		Not felt 6 km WNW of The Geysers, CA 87 mi 8:40 PM Details β†’
M0.3 		Not felt 5 km SSE of Parkfield, CA 156 mi 12:10 PM Details β†’
M0.3 		Not felt 1 km NNW of The Geysers, CA 85 mi 9:52 AM Details β†’
M0.3 		Not felt 3 km NW of The Geysers, CA 86 mi 8:36 PM Details β†’
M0.3 		Not felt 2 km WNW of The Geysers, CA 85 mi 1:02 AM Details β†’

πŸ“ˆ Earthquake History β€” Castro Valley

Since 2009 Β· M2.5+ Β· 250 mi radius

Castro Valley has recorded 12,665 earthquakes of magnitude 2.5 or greater within 250 miles since 2009. The largest was a M7.1 on Jul 6, 2019, located Ridgecrest Earthquake Sequence. On average, the area experiences approximately 1154 notable seismic events per year.

M2.5+ in Past 7 Days

Wed
0
β€”
Thu
1
MAX M3.5
Fri
2
MAX M3.8
Sat
2
MAX M4.4
Sun
6
MAX M3.0
Mon
4
MAX M3.0
Tue
1
MAX M2.7
Since 2009 Β· M2.5+ Β· 250 mi

Yearly Activity Β· 12665 events

Past Week
View:
M2.5–4 (bars)
M4+ (line, right axis)
Yearly Earthquake Activity by Magnitude05001k1.5k2k050100'10'13'16'19'22'252009: 450 (M2.5–4), 17 (M4+)2010: 528 (M2.5–4), 17 (M4+)2011: 625 (M2.5–4), 26 (M4+)2012: 466 (M2.5–4), 14 (M4+)2013: 664 (M2.5–4), 19 (M4+)2014: 589 (M2.5–4), 14 (M4+)2015: 511 (M2.5–4), 11 (M4+)2016: 565 (M2.5–4), 24 (M4+)2017: 586 (M2.5–4), 11 (M4+)2018: 448 (M2.5–4), 9 (M4+)2019: 519 (M2.5–4), 18 (M4+)2020: 1,918 (M2.5–4), 91 (M4+)2021: 1,071 (M2.5–4), 39 (M4+)2022: 638 (M2.5–4), 26 (M4+)2023: 569 (M2.5–4), 28 (M4+)2024: 896 (M2.5–4), 38 (M4+)2025: 696 (M2.5–4), 21 (M4+)2026: 480 (M2.5–4), 23 (M4+)
Event count (bars)
Seismic energy index (line)
Yearly Seismic Energy Release01k2k3k010.0B20.0B30.0B40.0B'10'13'16'19'22'252009: 467 events, Energy: 216.3M2010: 545 events, Energy: 6.4B2011: 651 events, Energy: 119.6M2012: 480 events, Energy: 143.4M2013: 683 events, Energy: 483.9M2014: 603 events, Energy: 1.1B2015: 522 events, Energy: 396.8M2016: 589 events, Energy: 880.5M2017: 597 events, Energy: 48.5M2018: 457 events, Energy: 52.9M2019: 537 events, Energy: 325.7M2020: 2,009 events, Energy: 7.5B2021: 1,110 events, Energy: 3.6B2022: 664 events, Energy: 4.2B2023: 597 events, Energy: 509.4M2024: 934 events, Energy: 32.2B2025: 717 events, Energy: 118.9M2026: 503 events, Energy: 813.9M
Largest Recorded
M7.1
Ridgecrest Earthquake Sequence
Jul 6, 2019
Avg Noticeable / Year
47.5
Estimated felt (MMI β‰₯ II)

Strongest Recorded Earthquakes

M7.1 Jul 6, 2019
Ridgecrest Earthquake Sequence
M7.0 Dec 5, 2024
2024 Offshore Cape Mendocino, California Earthquake
M6.8 Mar 10, 2014
77 km WNW of Indianola, California
M6.6 Dec 8, 2016
164 km W of Ferndale, California
M6.5 May 15, 2020
Monte Cristo Range, NV Earthquake
M6.5 Jan 10, 2010
The 2010 Eureka, California Earthquake
πŸ“Š Looking for detailed historical data?

πŸ›‘οΈ Earthquake Safety β€” Castro Valley, California

What Castro Valley 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 Castro Valley with live tracking

πŸ”” Get earthquake alerts for Castro Valley
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 Castro Valley. Our threat scores, historical trend charts, and proximity alerts are all derived from this data β€” updated every 60 seconds.

Earthquake FAQ β€” Castro Valley, California

Was there an earthquake in Castro Valley today?

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

Did an earthquake just happen near Castro Valley?

Check the live earthquake table above for the most recent seismic events near 94552. Alertra detects earthquakes right now as they happen and can send you instant earthquake alerts for Castro Valley.

What is the earthquake history for Castro Valley, California?

Alertra tracks USGS seismic records going back 15+ years for the Castro Valley area. View the historical trends chart above to see yearly earthquake frequency and the largest recorded event near 94552.

How do I get earthquake alerts for Castro Valley?

Download the Alertra app to receive push notifications within 60 seconds of any earthquake detected near 94552. 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.