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Light mag. 4.2 earthquake - 10.5 km southeast of Petatlan, Guerrero, Mexico, on Saturday, Mar 18, 2023 at 12:40 am (GMT -6) -

Light mag. 4.2 earthquake - 10.5 km southeast of Petatlan, Guerrero, Mexico, on Saturday, Mar 18, 2023 at 12:40 am (GMT -6) Light mag. 4.2 earthquake - 10.5 km southeast of Petatlan, Guerrero, Mexico, on Saturday, Mar 18, 2023 at 12:40 am (GMT -6)

Light magnitude 4.2 earthquake at 29 km depth

18 Mar 07:04 UTC: First to report: RaspberryShake after 24 minutes.
18 Mar 08:56: Now using data updates from SSN

Earthquake details

Date & timeMar 18, 2023 06:40:05 UTC -
Local time at epicenterSaturday, Mar 18, 2023 at 12:40 am (GMT -6)
Depth28.6 km
Epicenter latitude / longitude17.48°N / 101.19°W (Petatlan, Guerrero, Mexico)
Antipode17.48°S / 78.81°E
Shaking intensityWeak shaking near epicenter
Felt0 reports
Primary data sourceSSN (Servicio Sismológico Nacional)
Nearest volcanoZitácuaro-Valle de Bravo (235 km / 146 mi)
Nearby towns and cities0 km (0 mi) N of Paso de la Ceiba (pop: 97) | Show on map | Quakes nearby
10 km (7 mi) SE of Petatlan (Petatlán) (pop: 21,700) | Show on map | Quakes nearby
23 km (14 mi) NW of Papanoa (pop: 3,510) | Show on map | Quakes nearby
41 km (25 mi) NW of san luis de la loma (pop: 4,240) | Show on map | Quakes nearby
42 km (26 mi) ESE of Ixtapa Zihuatanejo (pop: 67,400) | Show on map | Quakes nearby
66 km (41 mi) WNW of Técpan de Galeana (pop: 15,100) | Show on map | Quakes nearby
179 km (111 mi) W of Chilpancingo de los Bravo (pop: 187,300) | Show on map | Quakes nearby
307 km (191 mi) SW of Mexico (Ciudad de México) (pop: 12,294,200) | Show on map | Quakes nearby
Estimated seismic energy released1.3 x 1011 joules (35 megawatt hours, equivalent to 30.1 tons of TNT) | about seismic energy
Show interactive Map
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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.
4.229 kmMexico: 11 Km Al SURESTE De PETATLAN, GROSSN
4.229 kmNear Coast of Guerrero, MexicoRaspberryShake


Seismic station: Morelia, Mich, MX (MOIG/MX network) | Distance from quake: 241 km / 150 mi | Show on map | Station Info
Seismic station Morelia, Mich, MX: 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

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake.

Earlier earthquakes in the same area

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