Moderate mag. 4.1 earthquake - North Pacific Ocean, 67 km southwest of Ometepec, Guerrero, Mexico, on Friday, 19 Mar 2021 9:36 pm (GMT -6) -

This quake was likely an aftershock of the 5.7 quake North Pacific Ocean, 66 km southwest of Ometepec, Guerrero, Mexico, 19 Mar 2021 9:06 pm (GMT -6), which had occurred 30 minutes earlier.
Moderate mag. 4.1 earthquake - North Pacific Ocean, 67 km southwest of Ometepec, Guerrero, Mexico, on Friday, 19 Mar 2021 9:36 pm (GMT -6)

Moderate magnitude 4.1 earthquake at 16 km depth

20 Mar 03:56 UTC: First to report: SSN after 20 minutes.
Date & time: 20 Mar 2021 03:36:24 UTC -
Local time at epicenter: Friday, 19 Mar 2021 9:36 pm (GMT -6)
Magnitude: 4.1
Depth: 16.0 km
Epicenter latitude / longitude: 16.45°N / 98.98°W (North Pacific Ocean, Mexico)
Nearby towns and cities:
15 km (9 mi) SSW of El Papayo (pop: 188) --> See nearby quakes!
23 km (14 mi) SW of Marquelia (pop: 6,550) --> See nearby quakes!
33 km (21 mi) S of Cuautepec (pop: 3,570) --> See nearby quakes!
34 km (21 mi) SSE of Cruz Grande (pop: 11,800) --> See nearby quakes!
41 km (26 mi) WSW of Juchitan (pop: 3,350) --> See nearby quakes!
48 km (30 mi) SSW of San Luis Acatlan (pop: 8,280) --> See nearby quakes!
58 km (36 mi) SE of San Marcos (pop: 13,300) --> See nearby quakes!
58 km (36 mi) SSE of Ayutla de los Libres (pop: 15,400) --> See nearby quakes!
67 km (41 mi) WSW of Ometepec (pop: 24,100) --> See nearby quakes!
332 km (206 mi) S of Mexico City (pop: 12,294,200) --> See nearby quakes!
Weather at epicenter at time of quake:
Clear Sky 26.7°C (80 F), humidity: 69%, wind: 1 m/s (3 kts) from WSW
Primary data source: SSN (Servicio Sismológico Nacional)
Estimated released energy: 8.9 x 1010 joules (24.8 megawatt hours, equivalent to 21.3 tons of TNT) More info
Show interactive Map
[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.
4.116 km58 Km Al SURESTE De SAN MARCOS, GRO, MexicoSSN

User reports for this quake (3)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
San Juan y San Pedro Tezompa, Chalco Municipality, México (306.5 km N of epicenter) [Map] / Very strong shaking (MMI VII)
Oaxtepec Morelos (272.9 km N of epicenter) [Map] / not felt (reported through our app)
Guerrero Acapolco / Very weak shaking (MMI II) / very short
Volcanoes & Earthquakes - new app for Android

Earlier earthquakes in the same area

Try our free app!
Volcanoes & Earthquakes - new app for Android
Android | iOS version
Why is there advertising on this site?
Support us - Help us upgrade our services!
We truly love working to bring you the latest volcano and earthquake data from around the world. Maintaining our website and our free apps does require, however, considerable time and resources.
We need financing to increase hard- and software capacity as well as support our editor team. We're aiming to achieve uninterrupted service wherever an earthquake or volcano eruption unfolds, and your donations can make it happen! Every donation will be highly appreciated. If you find the information useful and would like to support our team in integrating further features, write great content, and in upgrading our soft- and hardware, please make a donation (PayPal or Online credit card payment).

Planned features:
  • Weather reports
  • Tsunami alerts
  • Design upgrades
  • Faster responsiveness
Thanks to your past donations, these features have been added recently:
  • Earthquake archive from 1900 onwards
  • Additional seismic data sources
  • Improved content in English
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.