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Light mag. 3.5 earthquake - 35 km southwest of Ayutla de los Libres, Guerrero, Mexico, on Monday, Jan 30, 2023 at 3:54 pm (GMT -6) -

Light magnitude 3.5 earthquake at 21 km depth

31 Jan 02:07 UTC: First to report: SSN after 4 hours.

Earthquake details

Date & time	Jan 30, 2023 21:54:25 UTC -
Local time at epicenter	Monday, Jan 30, 2023 at 3:54 pm (GMT -6)
Status	Confirmed
Magnitude	3.5
Depth	20.6 km
Epicenter latitude / longitude	16.74°N / 99.33°W (San Marcos, Guerrero, Mexico)
Antipode	16.74°S / 80.67°E
Shaking intensity	Weak shaking near epicenter
Felt	0 reports
Primary data source	SSN (Servicio Sismológico Nacional)
Nearest volcano	###NEARESTVOLCANO2###
Nearby towns and cities	5 km (3 mi) NNW of El Cerro Pesqueria (pop: 114) \| Show on map \| Quakes nearby 9 km (6 mi) SE of San Marcos (pop: 13,300) \| Show on map \| Quakes nearby 11 km (7 mi) WSW of Las Vigas (pop: 4,500) \| Show on map \| Quakes nearby 22 km (14 mi) W of Florencio Villarreal (Cruz Grande) (pop: 11,800) \| Show on map \| Quakes nearby 29 km (18 mi) SSW of Tecoanapa (pop: 4,270) \| Show on map \| Quakes nearby 35 km (22 mi) SW of Ayutla de los Libres (pop: 15,400) \| Show on map \| Quakes nearby 92 km (57 mi) SSE of Chilpancingo de los Bravo (pop: 187,300) \| Show on map \| Quakes nearby 300 km (186 mi) S 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	1.1 x 10¹⁰ joules (3.12 megawatt hours, equivalent to 2.68 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
3.5	21 km	Mexico: 9 Km Al SURESTE De SAN MARCOS, GRO	SSN
3.5	21 km	Near Coast of Guerrero, Mexico	RaspberryShake
3.5	21 km	GUERRERO, MEXICO	EMSC

Most recent quakes Top 20 past 24 hrs Quakes in Mexico

Seismograms

Seismic station: TLAPA (TLIG/MX network) | Distance from quake: 122 km / 76 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: 0.5-10.0 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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