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Moderate mag. 4.0 earthquake - North Pacific Ocean, 29 km south of Atoyac de Alvarez, Guerrero, Mexico, on Sunday, Mar 19, 2023 at 1:23 am (GMT -6) -

I felt this quake
Moderate mag. 4.0 earthquake - North Pacific Ocean, 29 km south of Atoyac de Alvarez, Guerrero, Mexico, on Sunday, Mar 19, 2023 at 1:23 am (GMT -6) Moderate mag. 4.0 earthquake - North Pacific Ocean, 29 km south of Atoyac de Alvarez, Guerrero, Mexico, on Sunday, Mar 19, 2023 at 1:23 am (GMT -6)

Moderate magnitude 4.0 earthquake at 10 km depth

19 Mar 07:56 UTC: First to report: RaspberryShake after 32 minutes.
19 Mar 08:21: Now using data updates from SSN
I felt this quake
I didn't feel it

Earthquake details

Date & timeMar 19, 2023 07:23:50 UTC -
Local time at epicenterSunday, Mar 19, 2023 at 1:23 am (GMT -6)
Depth10.0 km
Epicenter latitude / longitude16.95°N / 100.37°W (North Pacific Ocean, Mexico)
Antipode16.95°S / 79.63°E
Shaking intensityLight shaking near epicenter
Felt0 reports
Primary data sourceSSN (Servicio Sismológico Nacional)
Nearest volcanoNevado de Toluca (249 km / 155 mi)
Nearby towns and cities11 km (7 mi) SW of Pozuelo (pop: 35) | Show on map | Quakes nearby
20 km (12 mi) S of Cacalutla (pop: 2,010) | Show on map | Quakes nearby
20 km (12 mi) SE of Hacienda de Cabañas (pop: 2,010) | Show on map | Quakes nearby
29 km (18 mi) SSE of Atoyac de Alvarez (Atoyac de Álvarez) (pop: 21,400) | Show on map | Quakes nearby
31 km (19 mi) WSW of Coyuca de Benitez (Coyuca de Benítez) (pop: 13,600) | Show on map | Quakes nearby
41 km (25 mi) SE of Técpan de Galeana (pop: 15,100) | Show on map | Quakes nearby
50 km (31 mi) WNW of Acapulco (pop: 673,500) | Show on map | Quakes nearby
305 km (190 mi) SSW of Mexico (pop: 12,294,200) | Show on map | Quakes nearby
Estimated seismic energy released6.3 x 1010 joules (17.5 megawatt hours, equivalent to 15.1 tons of TNT) | about seismic energy
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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.
4.010 kmMexico: 29 Km Al SUR De ATOYAC DE ALVAREZ, GROSSN
4.010 kmNear Coast of Guerrero, MexicoRaspberryShake


Seismic station: TLAPA (TLIG/MX network) | Distance from quake: 203 km / 126 mi | Show on map | Station Info
Seismic station TLAPA: vertical movement plot around time of quake (source: IRIS/BUD)
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Bandpass filter applied: 0.2-10.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool
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User reports for this quake (1)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Puerto Marquez Acapulco Mexico / not felt

Earlier earthquakes in the same area

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