Moderate mag. 4.2 earthquake - North Pacific Ocean, 45 km south of Ayutla de los Libres, Guerrero, Mexico, on Saturday, 27 Feb 2021 12:37 am (GMT -6) -

Moderate mag. 4.2 earthquake - North Pacific Ocean, 45 km south of Ayutla de los Libres, Guerrero, Mexico, on Saturday, 27 Feb 2021 12:37 am (GMT -6)

Moderate magnitude 4.2 earthquake at 8 km depth

27 Feb 06:56 UTC: First to report: EMSC after 19 minutes.
27 Feb 07:00: Now using data updates from SSN
Update Sat, 27 Feb 2021, 07:00
Moderate 4.2 quake hits near Ayutla de los Libres, Guerrero, Mexico
4.2 quake 27 Feb 12:37 am (GMT -6)
4.2 quake 27 Feb 12:37 am (GMT -6)
An earthquake of magnitude 4.2 occurred only 22 minutes ago 45 km southwest of Ayutla de los Libres, Mexico, the European-Mediterranean Seismological Centre (EMSC) reported.
The quake hit at a very shallow depth of 8 km beneath the epicenter near Ayutla de los Libres, Guerrero, Mexico, after midnight on Saturday 27 February 2021 at 12:37 am local time. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
Based on the preliminary seismic data, the quake was probably felt by many people in the area of the epicenter. It should not have caused significant damage, other than objects falling from shelves, broken windows, etc.
In Boca del Rio (pop. 490) located 6 km from the epicenter, the quake should have been felt as light shaking.
Weak shaking might have been felt in Cruz Grande (pop. 11,800) located 19 km from the epicenter, Jalapa (pop. 1,700) 23 km away, Copala (pop. 6,600) 26 km away, Cuautepec (pop. 3,600) 30 km away, and San Marcos (pop. 13,300) 30 km away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Marquelia (pop. 6,600) located 43 km from the epicenter, Ayutla de los Libres (pop. 15,400) 45 km away, and Tecoanapa (pop. 4,300) 46 km away.
Download the Volcanoes & Earthquakes app to get one of the fastest seismic alerts online:
Android | IOS

Earthquake data:

Date & time: 27 Feb 2021 06:37:35 UTC -
Local time at epicenter: Saturday, 27 Feb 2021 12:37 am (GMT -6)
Magnitude: 4.2
Depth: 8.0 km
Epicenter latitude / longitude: 16.58°N / 99.22°W (North Pacific Ocean, Mexico)
Nearby towns and cities:
6 km (4 mi) S of Boca del Rio (pop: 492) --> See nearby quakes!
19 km (12 mi) SSW of Cruz Grande (pop: 11,800) --> See nearby quakes!
26 km (16 mi) W of Copala (pop: 6,620) --> See nearby quakes!
30 km (19 mi) SW of Cuautepec (pop: 3,570) --> See nearby quakes!
30 km (19 mi) SE of San Marcos (pop: 13,300) --> See nearby quakes!
36 km (22 mi) SSW of Tonala (pop: 2,180) --> See nearby quakes!
43 km (27 mi) W of Marquelia (pop: 6,550) --> See nearby quakes!
45 km (28 mi) SSW of Ayutla de los Libres (pop: 15,400) --> See nearby quakes!
46 km (28 mi) S of Tecoanapa (pop: 4,270) --> See nearby quakes!
317 km (197 mi) S of Mexico City (pop: 12,294,200) --> See nearby quakes!
Weather at epicenter at time of quake:
Clear Sky 24.6°C (76 F), humidity: 76%, wind: 2 m/s (4 kts) from ENE
Primary data source: SSN (Servicio Sismológico Nacional)
Estimated released energy: 1.3 x 1011 joules (35 megawatt hours, equivalent to 30.1 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.
MagnitudeDepthLocationSource
4.28 km30 Km Al SURESTE De SAN MARCOS, GRO, MexicoSSN
4.28 kmOFFSHORE GUERRERO, MEXICOEMSC

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 since 1900


Map of earlier quakes

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.