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322 earthquakes globally today

Earthquakes Near Ontario, California 91761 Today

Live data from USGS Β· Monitoring ZIP code 91761 Updated just now

Heads up: a M4.3 earthquake was detected 89 miles away. Review details below.

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

Recent Earthquakes Near Ontario, California

127 earthquakes have been recorded within 250 miles of Ontario, California in the past 24 hours. Alertra monitors seismic activity near ZIP code 91761 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 Ontario, this earthquake watch dashboard provides real-time magnitude data, an interactive seismic map, and earthquake history going back 15+ years.

Earthquake Alerts for Ontario, California

Alertra delivers real-time earthquake alerts for Ontario and the surrounding 91761 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€” Ontario

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

Current Threat Level
Notable
LowModerateHigh
Threat score: 46 / 100

Above-average activity near Ontario. Nothing dangerous, but noteworthy.

Earthquakes nearby 127
Closest to you M0.8, 13 mi
Strongest in last 24hr M4.3, Felt indoors
Last felt M4.0+ 1 day ago
Tracking Area
Ontario
LIVE EARTHQUAKES
Found 127 in region
Major (6.0+)
Moderate (4.0 - 5.9)
Minor (Below 4.0)
Your Location

🌍 Recent Earthquakes Near Ontario

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
M4.3 		Felt indoors 18 km WSW of Johannesburg, CA 89 mi 4:40 PM Details β†’
M2.8 		Rarely felt 18 km WSW of Johannesburg, CA 89 mi 5:44 AM Details β†’
M2.6 		Rarely felt 18 km WSW of Johannesburg, CA 88 mi 6:29 PM Details β†’
M2.5 		Rarely felt 2 km SSE of Frazier Park, CA 93 mi 1:50 PM Details β†’
M2.4 		Rarely felt 18 km WSW of Johannesburg, CA 88 mi 6:54 PM Details β†’
M2.3 		Rarely felt 17 km WSW of Johannesburg, CA 89 mi 10:49 PM Details β†’
M2.2 		Rarely felt 17 km WSW of Johannesburg, CA 89 mi 5:01 PM Details β†’
M2.1 		Rarely felt 6 km SSE of Parkfield, CA 203 mi 11:51 AM Details β†’
M2.1 		Rarely felt 19 km NNE of Indio, CA 82 mi 7:04 PM Details β†’
M2.0 		Rarely felt 10 km NNW of Simmler, CA 169 mi 12:53 PM Details β†’
M2.0 		Not felt 19 km WSW of Johannesburg, CA 88 mi 7:11 PM Details β†’
M1.9 		Not felt 33 km NE of Ensenada, B.C., MX 151 mi 6:42 AM Details β†’
M1.9 		Not felt 4 km ESE of Vincent, CA 42 mi 5:31 AM Details β†’
M1.8 		Not felt 6 km SE of Parkfield, CA 202 mi 11:52 AM Details β†’
M1.7 		Not felt 22 km ESE of Anza, CA 76 mi 4:56 AM Details β†’
M1.7 		Not felt 5 km NNW of Boron, CA 70 mi 11:19 PM Details β†’
M1.7 		Not felt 17 km WSW of Johannesburg, CA 89 mi 1:42 PM Details β†’
M1.6 		Not felt 18 km WSW of Johannesburg, CA 89 mi 4:57 PM Details β†’
M1.6 		Not felt 3 km SE of Frazier Park, CA 93 mi 3:56 PM Details β†’
M1.6 		Not felt 17 km WSW of Johannesburg, CA 89 mi 6:26 PM Details β†’
M1.6 		Not felt 7 km SSE of Malibu Beach, CA 61 mi 5:56 AM Details β†’
M1.6 		Not felt 49 km SSW of Rachel, Nevada 240 mi 7:05 AM Details β†’
M1.6 		Not felt 17 km WSW of Johannesburg, CA 89 mi 7:59 PM Details β†’
M1.5 		Not felt 20 km ENE of Little Lake, CA 137 mi 11:25 AM Details β†’
M1.5 		Not felt 2 km WSW of Wilkerson, CA 228 mi 3:59 AM Details β†’
M1.4 		Not felt 18 km WSW of Johannesburg, CA 88 mi 7:29 PM Details β†’
M1.4 		Not felt 2 km W of Orange, CA 22 mi 12:26 AM Details β†’
M1.4 		Not felt 17 km WSW of Johannesburg, CA 89 mi 3:56 AM Details β†’
M1.3 		Not felt 18 km WSW of Johannesburg, CA 89 mi 5:59 PM Details β†’
M1.3 		Not felt 23 km ENE of San Lucas, CA 235 mi 3:44 PM Details β†’
M1.3 		Not felt 17 km WSW of Johannesburg, CA 89 mi 6:19 AM Details β†’
M1.3 		Not felt 17 km WSW of Johannesburg, CA 88 mi 4:50 PM Details β†’
M1.2 		Not felt 5 km SSE of Home Gardens, CA 14 mi 6:15 PM Details β†’
M1.2 		Not felt 17 km SW of La Quinta, CA 73 mi 7:57 AM Details β†’
M1.2 		Not felt 11 km NNW of Anza, CA 57 mi 7:45 AM Details β†’
M1.2 		Not felt 18 km WSW of Johannesburg, CA 88 mi 11:04 AM Details β†’
M1.2 		Not felt 18 km WSW of Johannesburg, CA 88 mi 7:26 PM Details β†’
M1.2 		Not felt 17 km WSW of Johannesburg, CA 90 mi 10:01 PM Details β†’
M1.2 		Not felt 6 km SSE of Redlands, CA 25 mi 7:14 AM Details β†’
M1.2 		Not felt 0 km E of Loma Linda, CA 19 mi 12:07 AM Details β†’
M1.2 		Not felt 17 km WSW of Johannesburg, CA 90 mi 7:19 PM Details β†’
M1.2 		Not felt 17 km WSW of Johannesburg, CA 89 mi 4:49 PM Details β†’
M1.1 		Not felt 17 km WSW of Johannesburg, CA 88 mi 5:06 PM Details β†’
M1.1 		Not felt 5 km SSE of Parkfield, CA 203 mi 12:03 PM Details β†’
M1.1 		Not felt 9 km S of Idyllwild, CA 55 mi 2:08 AM Details β†’
M1.1 		Not felt 18 km WSW of Johannesburg, CA 88 mi 7:17 PM Details β†’
M1.1 		Not felt 6 km S of Mojave, CA 75 mi 6:57 PM Details β†’
M1.1 		Not felt 18 km WSW of Johannesburg, CA 89 mi 7:35 PM Details β†’
M1.1 		Not felt 18 km WSW of Johannesburg, CA 88 mi 7:16 PM Details β†’
M1.1 		Not felt 17 km WSW of Johannesburg, CA 89 mi 7:09 PM Details β†’
M1.1 		Not felt 10 km NE of Running Springs, CA 36 mi 4:20 PM Details β†’
M1.1 		Not felt 17 km N of Indio, CA 80 mi 2:05 AM Details β†’
M1.1 		Not felt 18 km WSW of Johannesburg, CA 89 mi 4:53 PM Details β†’
M1.1 		Not felt 4 km N of Frazier Park, CA 96 mi 7:52 PM Details β†’
M1.1 		Not felt 16 km SSW of Tehachapi, CA 85 mi 7:22 PM Details β†’
M1.1 		Not felt 18 km WSW of Johannesburg, CA 89 mi 4:54 PM Details β†’
M1.1 		Not felt 7 km E of Calimesa, CA 35 mi 10:06 PM Details β†’
M1.1 		Not felt 6 km E of Calimesa, CA 34 mi 5:00 PM Details β†’
M1.1 		Not felt 23 km N of Ridgecrest, CA 124 mi 11:54 AM Details β†’
M1.1 		Not felt 18 km WSW of Johannesburg, CA 89 mi 9:28 PM Details β†’
M1.1 		Not felt 18 km WSW of Johannesburg, CA 89 mi 10:23 AM Details β†’
M1.1 		Not felt 17 km WSW of Johannesburg, CA 89 mi 8:46 AM Details β†’
M1.1 		Not felt 18 km WSW of Johannesburg, CA 89 mi 10:53 PM Details β†’
M1.1 		Not felt 18 km WSW of Johannesburg, CA 89 mi 5:07 PM Details β†’
M1.1 		Not felt 11 km WSW of Niland, CA 126 mi 3:31 AM Details β†’
M1.1 		Not felt 17 km WSW of Johannesburg, CA 89 mi 5:07 PM Details β†’
M1.0 		Not felt 17 km WSW of Johannesburg, CA 89 mi 8:46 PM Details β†’
M1.0 		Not felt 22 km NNW of Borrego Springs, CA 78 mi 6:31 PM Details β†’
M1.0 		Not felt 10 km N of Coso Junction, CA 146 mi 5:58 PM Details β†’
M1.0 		Not felt 17 km WSW of Johannesburg, CA 89 mi 4:45 PM Details β†’
M1.0 		Not felt 18 km WSW of Johannesburg, CA 88 mi 7:18 PM Details β†’
M1.0 		Not felt 20 km E of Little Lake, CA 132 mi 5:23 PM Details β†’
M1.0 		Not felt 13 km WNW of Searles Valley, CA 123 mi 4:03 PM Details β†’
M1.0 		Not felt 7 km W of Tecate, B.C., MX 114 mi 2:56 PM Details β†’
M1.0 		Not felt 17 km WSW of Johannesburg, CA 89 mi 8:33 PM Details β†’
M0.9 		Not felt 7 km WNW of Lake Elsinore, CA 27 mi 12:40 PM Details β†’
M0.9 		Not felt 17 km WSW of Johannesburg, CA 90 mi 7:25 PM Details β†’
M0.9 		Not felt 17 km WSW of Johannesburg, CA 90 mi 4:01 PM Details β†’
M0.9 		Not felt 20 km N of Searles Valley, CA 133 mi 2:34 AM Details β†’
M0.9 		Not felt 15 km NE of Little Lake, CA 137 mi 1:21 AM Details β†’
M0.9 		Not felt 6 km SSE of Redlands, CA 25 mi 7:24 AM Details β†’
M0.9 		Not felt 19 km WSW of Johannesburg, CA 89 mi 5:19 AM Details β†’
M0.9 		Not felt 17 km WSW of Johannesburg, CA 88 mi 7:18 PM Details β†’
M0.8 		Not felt 3 km NE of San Dimas, CA 13 mi 8:40 AM Details β†’
M0.8 		Not felt 7 km SSW of Redlands, CA 22 mi 8:26 AM Details β†’
M0.8 		Not felt 17 km WSW of Johannesburg, CA 89 mi 5:21 PM Details β†’
M0.8 		Not felt 3 km SSW of Redlands, CA 23 mi 6:16 AM Details β†’
M0.8 		Not felt 19 km WSW of Johannesburg, CA 88 mi 5:47 AM Details β†’
M0.8 		Not felt 4 km ENE of Llano, CA 34 mi 3:26 AM Details β†’
M0.8 		Not felt 3 km W of Redlands, CA 21 mi 2:04 PM Details β†’
M0.8 		Not felt 18 km WSW of Johannesburg, CA 88 mi 4:18 AM Details β†’
M0.8 		Not felt 15 km W of Johannesburg, CA 92 mi 7:53 AM Details β†’
M0.8 		Not felt 16 km WSW of Johannesburg, CA 89 mi 9:25 PM Details β†’
M0.8 		Not felt 20 km WNW of Progreso, B.C., MX 142 mi 4:18 AM Details β†’
M0.8 		Not felt 18 km WSW of Johannesburg, CA 88 mi 4:50 PM Details β†’
M0.8 		Not felt 5 km S of Redlands, CA 24 mi 3:00 AM Details β†’
M0.7 		Not felt 12 km SW of Searles Valley, CA 115 mi 2:18 AM Details β†’
M0.7 		Not felt 23 km N of Ridgecrest, CA 124 mi 11:52 AM Details β†’
M0.7 		Not felt 7 km E of Calimesa, CA 36 mi 10:15 PM Details β†’
M0.7 		Not felt 19 km NNE of Indio, CA 82 mi 8:34 PM Details β†’
M0.7 		Not felt 16 km ENE of Thousand Palms, CA 79 mi 2:32 PM Details β†’
M0.7 		Not felt 3 km NW of Hemet, CA 39 mi 7:07 PM Details β†’
M0.7 		Not felt 7 km ESE of Valle Vista, CA 49 mi 5:27 AM Details β†’
M0.7 		Not felt 23 km N of Ridgecrest, CA 124 mi 11:55 AM Details β†’
M0.6 		Not felt 11 km NNE of Borrego Springs, CA 86 mi 12:55 PM Details β†’
M0.6 		Not felt 18 km SSW of Searles Valley, CA 110 mi 5:38 AM Details β†’
M0.6 		Not felt 3 km E of Running Springs, CA 32 mi 11:09 PM Details β†’
M0.6 		Not felt 19 km NNE of Indio, CA 82 mi 5:38 PM Details β†’
M0.6 		Not felt 18 km WSW of Johannesburg, CA 87 mi 4:53 PM Details β†’
M0.6 		Not felt 4 km WSW of Anza, CA 61 mi 3:20 PM Details β†’
M0.6 		Not felt 15 km SW of Johannesburg, CA 85 mi 5:32 PM Details β†’
M0.5 		Not felt 7 km WSW of Anza, CA 60 mi 6:45 AM Details β†’
M0.5 		Not felt 18 km NW of Parkfield, CA 217 mi 1:36 PM Details β†’
M0.5 		Not felt 6 km SSE of Redlands, CA 25 mi 7:33 AM Details β†’
M0.5 		Not felt 20 km NNE of Indio, CA 82 mi 5:38 PM Details β†’
M0.5 		Not felt 19 km W of Searles Valley, CA 121 mi 10:59 PM Details β†’
M0.4 		Not felt 16 km E of Little Lake, CA 130 mi 4:15 AM Details β†’
M0.4 		Not felt 4 km WSW of Anza, CA 61 mi 1:08 PM Details β†’
M0.4 		Not felt 15 km WSW of Searles Valley, CA 117 mi 4:09 PM Details β†’
M0.4 		Not felt 24 km N of Ridgecrest, CA 124 mi 11:56 AM Details β†’
M0.4 		Not felt 7 km WSW of Anza, CA 60 mi 7:12 AM Details β†’
M0.4 		Not felt 24 km N of Ridgecrest, CA 124 mi 11:54 AM Details β†’
M0.3 		Not felt 5 km SSE of Parkfield, CA 203 mi 12:10 PM Details β†’
M0.3 		Not felt 7 km WSW of Anza, CA 60 mi 6:18 AM Details β†’
M0.3 		Not felt 9 km S of Idyllwild, CA 57 mi 7:49 AM Details β†’
M0.2 		Not felt 11 km SSW of Searles Valley, CA 113 mi 7:35 PM Details β†’
M-0.1 		Not felt 7 km WSW of Anza, CA 60 mi 6:47 AM Details β†’

πŸ“ˆ Earthquake History β€” Ontario

Since 2010 Β· M2.5+ Β· 250 mi radius

Ontario has recorded 14,238 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 1231 notable seismic events per year.

M2.5+ in Past 7 Days

Wed
0
β€”
Thu
3
MAX M3.4
Fri
0
β€”
Sat
1
MAX M3.0
Sun
6
MAX M4.1
Mon
3
MAX M4.3
Tue
2
MAX M2.8
Since 2010 Β· M2.5+ Β· 250 mi

Yearly Activity Β· 14238 events

Past Week
View:
M2.5–4 (bars)
M4+ (line, right axis)
Yearly Earthquake Activity by Magnitude01k2k3k4k050100150'10'13'16'19'22'252010: 2,381 (M2.5–4), 91 (M4+)2011: 781 (M2.5–4), 31 (M4+)2012: 737 (M2.5–4), 36 (M4+)2013: 518 (M2.5–4), 18 (M4+)2014: 556 (M2.5–4), 15 (M4+)2015: 407 (M2.5–4), 12 (M4+)2016: 514 (M2.5–4), 14 (M4+)2017: 415 (M2.5–4), 6 (M4+)2018: 430 (M2.5–4), 13 (M4+)2019: 3,110 (M2.5–4), 134 (M4+)2020: 908 (M2.5–4), 35 (M4+)2021: 616 (M2.5–4), 19 (M4+)2022: 436 (M2.5–4), 17 (M4+)2023: 474 (M2.5–4), 16 (M4+)2024: 639 (M2.5–4), 36 (M4+)2025: 486 (M2.5–4), 12 (M4+)2026: 312 (M2.5–4), 13 (M4+)
Event count (bars)
Seismic energy index (line)
Yearly Seismic Energy Release01k2k3k4k020.0B40.0B60.0B'10'13'16'19'22'252010: 2,472 events, Energy: 937.0M2011: 812 events, Energy: 146.9M2012: 773 events, Energy: 3.3B2013: 536 events, Energy: 93.4M2014: 571 events, Energy: 114.8M2015: 419 events, Energy: 79.8M2016: 528 events, Energy: 146.8M2017: 421 events, Energy: 28.7M2018: 443 events, Energy: 159.2M2019: 3,244 events, Energy: 49.8B2020: 943 events, Energy: 1.1B2021: 635 events, Energy: 172.5M2022: 453 events, Energy: 2.1B2023: 490 events, Energy: 121.2M2024: 675 events, Energy: 274.4M2025: 498 events, Energy: 112.9M2026: 325 events, Energy: 77.8M
Largest Recorded
M7.1
Ridgecrest Earthquake Sequence
Jul 6, 2019
Avg Noticeable / Year
57.6
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€” Ontario, California

What Ontario 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 Ontario with live tracking

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

Earthquake FAQ β€” Ontario, California

Was there an earthquake in Ontario today?

Heads up: a M4.3 earthquake was detected 89 miles away. Review details below. This page shows all earthquakes detected within 250 miles of Ontario in the past 24 hours, updated every 60 seconds from USGS.

Did an earthquake just happen near Ontario?

Check the live earthquake table above for the most recent seismic events near 91761. Alertra detects earthquakes right now as they happen and can send you instant earthquake alerts for Ontario.

What is the earthquake history for Ontario, California?

Alertra tracks USGS seismic records going back 15+ years for the Ontario area. View the historical trends chart above to see yearly earthquake frequency and the largest recorded event near 91761.

How do I get earthquake alerts for Ontario?

Download the Alertra app to receive push notifications within 60 seconds of any earthquake detected near 91761. 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.