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Earthquakes Near Tucson, Arizona 85743 Today

Live data from USGS · Monitoring ZIP code 85743 Updated just now

No earthquakes detected within 250 miles of Tucson in the past 24 hours. The ground is quiet.

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

Recent Earthquakes Near Tucson, Arizona

0 earthquakes have been recorded within 250 miles of Tucson, Arizona in the past 24 hours. Alertra monitors seismic activity near ZIP code 85743 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 Tucson, this earthquake watch dashboard provides real-time magnitude data, an interactive seismic map, and earthquake history going back 15+ years.

Earthquake Alerts for Tucson, Arizona

Alertra delivers real-time earthquake alerts for Tucson and the surrounding 85743 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 — Tucson

Live seismic risk assessment · Updated every 60 seconds from USGS

Current Threat Level
All Quiet
LowModerateHigh
Threat score: 0 / 100

No earthquakes detected near Tucson. Everything is calm.

Earthquakes nearby 0
Closest to you None detected
Strongest in last 24hr None detected
Last felt M4.0+ 511 days ago
Tracking Area
Tucson
LIVE EARTHQUAKES
Found 0 in region
Major (6.0+)
Moderate (4.0 - 5.9)
Minor (Below 4.0)
Your Location

🌍 Recent Earthquakes Near Tucson

Past 24 hours within 250 miles · Source: USGS

Showing events within 250 miles · Past 24 hours · Source: USGS
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No earthquakes detected within 250 miles in the past 24 hours.

📈 Earthquake History — Tucson

Since 2006 · M2.5+ · 250 mi radius

Tucson has recorded 4,334 earthquakes of magnitude 2.5 or greater within 250 miles since 2006. The largest was a M7.2 on Apr 4, 2010, located The 2010 Sierra El Mayor, B.C., Mexico Earthquake. On average, the area experiences approximately 594 notable seismic events per year.

M2.5+ in Past 7 Days

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Since 2006 · M2.5+ · 250 mi

Yearly Activity · 4334 events

Past Week
View:
M2.5–4 (bars)
M4+ (line, right axis)
Yearly Earthquake Activity by Magnitude01k2k3k050100'07'10'13'16'19'22'252006: 115 (M2.5–4), 6 (M4+)2007: 41 (M2.5–4), 2 (M4+)2008: 284 (M2.5–4), 17 (M4+)2009: 125 (M2.5–4), 21 (M4+)2010: 2,185 (M2.5–4), 99 (M4+)2011: 268 (M2.5–4), 12 (M4+)2012: 139 (M2.5–4), 24 (M4+)2013: 109 (M2.5–4), 14 (M4+)2014: 103 (M2.5–4), 23 (M4+)2015: 75 (M2.5–4), 4 (M4+)2016: 53 (M2.5–4), 11 (M4+)2017: 35 (M2.5–4), 1 (M4+)2018: 44 (M2.5–4), 10 (M4+)2019: 47 (M2.5–4), 11 (M4+)2020: 44 (M2.5–4), 4 (M4+)2021: 61 (M2.5–4), 52 (M4+)2022: 41 (M2.5–4), 5 (M4+)2023: 57 (M2.5–4), 2 (M4+)2024: 85 (M2.5–4), 9 (M4+)2025: 66 (M2.5–4), 2 (M4+)2026: 27 (M2.5–4), 1 (M4+)
Event count (bars)
Seismic energy index (line)
Yearly Seismic Energy Release01k2k3k020.0B40.0B60.0B80.0B'07'10'13'16'19'22'252006: 121 events, Energy: 191.1M2007: 43 events, Energy: 20.7M2008: 301 events, Energy: 323.9M2009: 146 events, Energy: 23.6B2010: 2,284 events, Energy: 64.4B2011: 280 events, Energy: 104.4M2012: 163 events, Energy: 215.7M2013: 123 events, Energy: 53.2M2014: 126 events, Energy: 435.2M2015: 79 events, Energy: 11.8M2016: 64 events, Energy: 249.4M2017: 36 events, Energy: 2.9M2018: 54 events, Energy: 68.2M2019: 58 events, Energy: 92.8M2020: 48 events, Energy: 184.8M2021: 113 events, Energy: 368.1M2022: 46 events, Energy: 159.7M2023: 59 events, Energy: 14.1M2024: 94 events, Energy: 53.2M2025: 68 events, Energy: 8.3M2026: 28 events, Energy: 3.5M
Largest Recorded
M7.2
The 2010 Sierra El Mayor, B.C., Mexico Earthquake
Apr 4, 2010
Avg Noticeable / Year
9
Estimated felt (MMI ≥ II)

Strongest Recorded Earthquakes

M7.2 Apr 4, 2010
The 2010 Sierra El Mayor, B.C., Mexico Earthquake
M7.0 Apr 12, 2012
69 km ENE of San Luis, Mexico
M6.9 Aug 3, 2009
96 km WNW of Bahía de Kino, Mexico
M6.6 Jan 4, 2006
75 km SSW of Bahía de Kino, Mexico
M6.2 Nov 22, 2022
28 km SW of Las Brisas, Mexico
M6.2 Aug 3, 2009
97 km N of San Luis, Mexico
📊 Looking for detailed historical data?

🛡️ Earthquake Safety — Tucson, Arizona

What Tucson 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 Tucson with live tracking

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

Earthquake FAQ — Tucson, Arizona

Was there an earthquake in Tucson today?

No earthquakes detected within 250 miles of Tucson in the past 24 hours. The ground is quiet. This page shows all earthquakes detected within 250 miles of Tucson in the past 24 hours, updated every 60 seconds from USGS.

Did an earthquake just happen near Tucson?

Check the live earthquake table above for the most recent seismic events near 85743. Alertra detects earthquakes right now as they happen and can send you instant earthquake alerts for Tucson.

What is the earthquake history for Tucson, Arizona?

Alertra tracks USGS seismic records going back 15+ years for the Tucson area. View the historical trends chart above to see yearly earthquake frequency and the largest recorded event near 85743.

How do I get earthquake alerts for Tucson?

Download the Alertra app to receive push notifications within 60 seconds of any earthquake detected near 85743. Alertra monitors USGS seismic data 24/7 — no manual earthquake watch required.

App Coming Soon!

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