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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 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 & time	Mar 18, 2023 06:40:05 UTC -
Local time at epicenter	Saturday, Mar 18, 2023 at 12:40 am (GMT -6)
Status	Confirmed
Magnitude	4.2
Depth	28.6 km
Epicenter latitude / longitude	17.48°N / 101.19°W (Petatlan, Guerrero, Mexico)
Antipode	17.48°S / 78.81°E
Shaking intensity	Weak shaking near epicenter
Felt	0 reports
Primary data source	SSN (Servicio Sismológico Nacional)
Nearest volcano	Zitácuaro-Valle de Bravo (235 km / 146 mi)
Nearby towns and cities	0 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
Weather at epicenter at time of quake
Estimated seismic energy released	1.3 x 10¹¹ joules (35 megawatt hours, equivalent to 30.1 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.

Mag.	Depth	Location	Source
4.2	29 km	Mexico: 11 Km Al SURESTE De PETATLAN, GRO	SSN
4.2	29 km	GUERRERO, MEXICO	EMSC
4.2	29 km	Near Coast of Guerrero, Mexico	RaspberryShake

Most recent quakes Top 20 past 24 hrs Quakes in Mexico

Seismograms

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

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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