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219 earthquakes globally today

Earthquakes Near Porterville, California 93257 Today

Live data from USGS · Monitoring ZIP code 93257 Updated just now

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

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Recent Earthquakes Near Porterville, California

45 earthquakes have been recorded within 250 miles of Porterville, California in the past 24 hours. Alertra monitors seismic activity near ZIP code 93257 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 Porterville, this earthquake watch dashboard provides real-time magnitude data, an interactive seismic map, and earthquake history going back 15+ years.

Earthquake Alerts for Porterville, California

Alertra delivers real-time earthquake alerts for Porterville and the surrounding 93257 area. When seismic activity is detected nearby, push notifications are sent within 60 seconds — no manual earthquake watch required.

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📊 Earthquake Watch — Porterville

Live seismic risk assessment · Updated every 60 seconds from USGS

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

Some seismic activity near Porterville. Most too small to feel.

Earthquakes nearby 45
Closest to you M1.7, 24 mi
Strongest in last 24hr M2.3, Rarely felt
Last felt M4.0+ 29 days ago
Tracking Area
Porterville
LIVE EARTHQUAKES
Found 45 in region
Major (6.0+)
Moderate (4.0 - 5.9)
Minor (Below 4.0)
Your Location

🌍 Recent Earthquakes Near Porterville

Past 24 hours within 250 miles · Source: USGS

Showing events within 250 miles · Past 24 hours · Source: USGS
Sort by:
MagnitudeWhat You'd FeelLocationDistanceWhen
M2.3 		Rarely felt 10 km SW of Toms Place, CA 104 mi 4:48 AM Details →
M2.1 		Rarely felt 18 km SE of Silver Springs, Nevada 230 mi 10:02 PM Details →
M2.1 		Rarely felt 2 km NE of Pacifica, CA 228 mi 12:16 AM Details →
M1.9 		Not felt 2 km ENE of Colton, CA 160 mi 8:57 AM Details →
M1.8 		Not felt 74 km ENE of Tonopah, Nevada 214 mi 8:08 AM Details →
M1.7 		Not felt 20 km E of McFarland, CA 24 mi 8:46 AM Details →
M1.5 		Not felt 4 km N of Aromas, CA 166 mi 12:04 AM Details →
M1.5 		Not felt 22 km NNW of Borrego Springs, CA 225 mi 6:03 AM Details →
M1.5 		Not felt 4 km SE of Aromas, CA 163 mi 12:26 AM Details →
M1.5 		Not felt 11 km ESE of New Idria, CA 97 mi 12:55 AM Details →
M1.4 		Not felt 5 km WNW of Anza, CA 208 mi 10:17 PM Details →
M1.4 		Not felt 10 km WSW of Corona, CA 165 mi 6:30 AM Details →
M1.3 		Not felt 10 km NE of Coso Junction, CA 57 mi 12:07 PM Details →
M1.3 		Not felt 7 km SE of Valle Vista, CA 196 mi 5:01 AM Details →
M1.2 		Not felt 16 km NNW of Piru, CA 99 mi 4:17 PM Details →
M1.2 		Not felt 8 km WNW of Anza, CA 206 mi 11:50 PM Details →
M1.2 		Not felt 5 km NW of Boron, CA 95 mi 11:12 PM Details →
M1.2 		Not felt 9 km SW of Grapevine, CA 76 mi 11:22 AM Details →
M1.2 		Not felt 2 km SE of Pacifica, CA 227 mi 11:03 AM Details →
M1.1 		Not felt 18 km N of Pine Mountain Club, CA 69 mi 3:08 PM Details →
M1.0 		Not felt 5 km WNW of Calimesa, CA 170 mi 1:15 PM Details →
M1.0 		Not felt 11 km N of Coso Junction, CA 55 mi 8:50 AM Details →
M1.0 		Not felt 2 km NNE of Colton, CA 159 mi 4:50 PM Details →
M0.9 		Not felt 23 km N of Borrego Springs, CA 224 mi 5:03 AM Details →
M0.9 		Not felt 14 km NE of Indio, CA 217 mi 12:44 PM Details →
M0.9 		Not felt 8 km NNW of Lake Henshaw, CA 221 mi 1:44 PM Details →
M0.8 		Not felt 12 km SW of Salton City, CA 249 mi 7:31 PM Details →
M0.8 		Not felt 12 km W of Anza, CA 205 mi 6:37 PM Details →
M0.8 		Not felt 16 km W of Searles Valley, CA 75 mi 4:42 AM Details →
M0.8 		Not felt 10 km WSW of Corona, CA 164 mi 7:44 PM Details →
M0.8 		Not felt 4 km SE of Ontario, CA 154 mi 2:10 AM Details →
M0.8 		Not felt 5 km SW of Redlands, CA 166 mi 8:22 PM Details →
M0.8 		Not felt 12 km SSW of Olancha, CA 50 mi 3:28 PM Details →
M0.8 		Not felt 22 km NNE of Indio, CA 214 mi 11:08 AM Details →
M0.7 		Not felt 8 km NNW of Lake Henshaw, CA 221 mi 2:38 PM Details →
M0.7 		Not felt 3 km SSE of Redlands, CA 167 mi 10:21 PM Details →
M0.7 		Not felt 4 km NNW of Anza, CA 208 mi 1:53 AM Details →
M0.5 		Not felt 9 km S of Idyllwild, CA 202 mi 4:02 PM Details →
M0.5 		Not felt 13 km N of Borrego Springs, CA 230 mi 11:03 PM Details →
M0.4 		Not felt 23 km N of Borrego Springs, CA 224 mi 5:04 AM Details →
M0.4 		Not felt 17 km ESE of Anza, CA 219 mi 6:49 AM Details →
M0.3 		Not felt 9 km ENE of Julian, CA 241 mi 12:07 PM Details →
M0.3 		Not felt 8 km SE of Valle Vista, CA 196 mi 5:03 AM Details →
M0.1 		Not felt 12 km W of Anza, CA 205 mi 12:37 PM Details →
M0.1 		Not felt 16 km NNE of Indio, CA 214 mi 4:56 PM Details →

📈 Earthquake History — Porterville

Since 2010 · M2.5+ · 250 mi radius

Porterville has recorded 14,253 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 1271 notable seismic events per year.

M2.5+ in Past 7 Days

Mon
1
MAX M3.0
Tue
0
—
Wed
0
—
Thu
3
MAX M2.9
Fri
1
MAX M2.5
Sat
1
MAX M2.5
Sun
0
—
Since 2010 · M2.5+ · 250 mi

Yearly Activity · 14253 events

Past Week
View:
M2.5–4 (bars)
M4+ (line, right axis)
Yearly Earthquake Activity by Magnitude01k2k3k4k050100150'10'13'16'19'22'252010: 2 (M2.5–4), 0 (M4+)2011: 683 (M2.5–4), 25 (M4+)2012: 490 (M2.5–4), 11 (M4+)2013: 525 (M2.5–4), 13 (M4+)2014: 634 (M2.5–4), 15 (M4+)2015: 486 (M2.5–4), 12 (M4+)2016: 569 (M2.5–4), 19 (M4+)2017: 596 (M2.5–4), 9 (M4+)2018: 489 (M2.5–4), 10 (M4+)2019: 3,216 (M2.5–4), 136 (M4+)2020: 2,078 (M2.5–4), 90 (M4+)2021: 976 (M2.5–4), 27 (M4+)2022: 593 (M2.5–4), 16 (M4+)2023: 536 (M2.5–4), 12 (M4+)2024: 664 (M2.5–4), 27 (M4+)2025: 632 (M2.5–4), 12 (M4+)2026: 630 (M2.5–4), 20 (M4+)
Event count (bars)
Seismic energy index (line)
Yearly Seismic Energy Release01k2k3k4k020.0B40.0B60.0B'10'13'16'19'22'252010: 2 events, Energy: 340.3k2011: 708 events, Energy: 108.7M2012: 501 events, Energy: 133.4M2013: 538 events, Energy: 112.9M2014: 649 events, Energy: 1.1B2015: 498 events, Energy: 63.1M2016: 588 events, Energy: 837.3M2017: 605 events, Energy: 45.0M2018: 499 events, Energy: 140.9M2019: 3,352 events, Energy: 49.9B2020: 2,168 events, Energy: 7.2B2021: 1,003 events, Energy: 1.2B2022: 609 events, Energy: 131.7M2023: 548 events, Energy: 99.5M2024: 691 events, Energy: 558.0M2025: 644 events, Energy: 115.9M2026: 650 events, Energy: 538.2M
Largest Recorded
M7.1
Ridgecrest Earthquake Sequence
Jul 6, 2019
Avg Noticeable / Year
54.3
Estimated felt (MMI ≥ 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
M6.0 Aug 24, 2014
The 2014 South Napa, California Earthquake
M6.0 Jul 8, 2021
Antelope Valley, CA
M5.8 Jun 24, 2020
18km SSE of Lone Pine, CA
📊 Looking for detailed historical data?

🛡️ Earthquake Safety — Porterville, California

What Porterville 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 Porterville with live tracking

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

Earthquake FAQ — Porterville, California

Was there an earthquake in Porterville today?

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

Did an earthquake just happen near Porterville?

Check the live earthquake table above for the most recent seismic events near 93257. Alertra detects earthquakes right now as they happen and can send you instant earthquake alerts for Porterville.

What is the earthquake history for Porterville, California?

Alertra tracks USGS seismic records going back 15+ years for the Porterville area. View the historical trends chart above to see yearly earthquake frequency and the largest recorded event near 93257.

How do I get earthquake alerts for Porterville?

Download the Alertra app to receive push notifications within 60 seconds of any earthquake detected near 93257. Alertra monitors USGS seismic data 24/7 — no manual earthquake watch required.

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