Mag. 3.3 earthquake - 3km E of Westmorland, CA, USA, on 30 Sep 5:36 pm (GMT -7) -

Mag. 3.3 earthquake  - 3km E of Westmorland, CA, USA, on 30 Sep 5:36 pm (GMT -7)

Minor magnitude 3.3 earthquake at 3 km depth

1 Oct 00:38 UTC: First to report: USGS after 2 minutes.
1 Oct 00:38: Magnitude recalculated from 3.4 to 3.1. Hypocenter depth recalculated from 7.7 to 3.1 km (from 4.8 to 1.9 mi). Epicenter location corrected by 3 km (1.9 mi) towards WSW.
1 Oct 00:40: Magnitude recalculated from 3.1 to 3.3. Hypocenter depth recalculated from 3.1 to 4.1 km (from 1.9 to 2.5 mi). Epicenter location corrected by 1.4 km (0.9 mi) towards N.
1 Oct 00:40: Hypocenter depth recalculated from 4.1 to 3.0 km (from 2.5 to 1.9 mi). Epicenter location corrected by 2 km (1.2 mi) towards SSE.
Date & time: 1 Oct 2020 12:36:30 UTC -
Local time at epicenter: 30 Sep 5:36 pm (GMT -7)
Magnitude: 3.3
Depth: 3.0 km
Epicenter latitude / longitude: 33.03067°N / 115.58383°W (United States)
Nearest volcano: Salton Buttes (19 km / 12 mi)
Nearby towns and cities:
4 km (2 mi) E of Westmorland (Imperial County) (pop: 2,270)
8 km (5 mi) NW of Brawley (Imperial County) (pop: 25,900)
12 km (8 mi) SSW of Calipatria (Imperial County) (pop: 7,420)
20 km (13 mi) N of Imperial (pop: 17,100)
31 km (19 mi) NW of Holtville (Imperial County) (pop: 6,400)
40 km (25 mi) NNW of Calexico (Imperial County) (pop: 40,100)
145 km (90 mi) ENE of Tijuana (Mexico) (pop: 1,301,000)
147 km (91 mi) ENE of Chula Vista (San Diego County) (pop: 265,800)
Weather at epicenter at time of quake:
Clear Sky 41°C (106 F), humidity: 9%, wind: 2 m/s (3 kts) from N
Primary data source: USGS
Estimated released energy: 5.6 x 109 joules (1.56 megawatt hours, equivalent to 1.34 tons of TNT) [learn more]
[smaller] [bigger]
If you felt this quake (or if you were near the epicenter), please share your experience and submit a short "I felt it" report! Other users would love to hear about it!
Also if you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable also to earthquake science and earthquake hazard analysis and mitigation efforts. You can use your device location or the map to indicate where you were during the earthquake. Thank you!

Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
MagnitudeDepthLocationSource
M 3.33 km3km E of Westmorland, CA, USAUSGS
M 2.85 kmSouthern California, USAEMSC
M 3.24 kmSouthern California, USAEMSC
M 2.95 kmSouthern California, USAEMSC

User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake yet. If you felt it be the first to report it!
Volcanoes & Earthquakes - new app for Android

Earlier earthquakes in the same area

Mag. 3.3 earthquake - 3km E of Westmorland, CA, USA, on 30 Sep 5:36 pm (GMT -7)
Volcanoes & Earthquakes - new app for Android
 

More on VolcanoDiscovery

 
Why is there advertising on this site?

Support us!

Maintaining the website and our free apps is a time- and cost-intensive effort.
If you find the information useful and would like to support our team to develop further features and get the upgraded ad-free version, consider making a donation (PayPal or Online cc payment).
Planned features:
  • Weather reports
  • Tsunami alerts
  • Design upgrades
Thanks to your past donations, these features have been added recently:
  • Earthquake archive back to 1900
  • Additional data sources
Download and Upgrade the Volcanoes & Earthquakes app to get one of the fastest seismic and volcano alerts online:
Android | IOS
Thank you!
Copyrights: VolcanoDiscovery and other sources as noted.
Use of material: Most texts and images, in particular photographs, on this website are protected by copyright. Further reproduction and use of without authorization is usually not consented. If you are not sure or need licensing rights for photographs, for example for publications and commercial use, please contact us.