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Weak mag. 3.4 earthquake - 30 km south of San Miguel Quetzaltepec, Oaxaca, Mexico, on Tuesday, Jan 31, 2023 at 12:36 am (GMT -6) -

Weak magnitude 3.4 earthquake at 75 km depth

31 Jan 14:07 UTC: First to report: SSN after 8 hours.

Earthquake details

Date & time	Jan 31, 2023 06:36:53 UTC -
Local time at epicenter	Tuesday, Jan 31, 2023 at 12:36 am (GMT -6)
Status	Confirmed
Magnitude	3.4
Depth	75.4 km
Epicenter latitude / longitude	16.71°N / 95.81°W (San Carlos Yautepec, Oaxaca, Mexico)
Antipode	16.71°S / 84.19°E
Shaking intensity	Very weak shaking
Felt	0 reports
Primary data source	SSN (Servicio Sismológico Nacional)
Nearest volcano	San Martín (218 km / 135 mi)
Nearby towns and cities	12 km (7 mi) SE of Santo Domingo Narro (pop: 432) \| Show on map \| Quakes nearby 20 km (12 mi) SSW of Santiago Quiavicuzas (pop: 1,460) \| Show on map \| Quakes nearby 21 km (13 mi) ENE of Santo Domingo (pop: 1,510) \| Show on map \| Quakes nearby 25 km (15 mi) ESE of San Pedro Quiatoni (pop: 2,790) \| Show on map \| Quakes nearby 28 km (17 mi) SSE of San Juan Juquila (pop: 1,670) \| Show on map \| Quakes nearby 30 km (19 mi) S of San Miguel Quetzaltepec (pop: 3,860) \| Show on map \| Quakes nearby 105 km (65 mi) ESE of Oaxaca (pop: 255,000) \| Show on map \| Quakes nearby 463 km (288 mi) SE 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	7.9 x 10⁹ joules (2.21 megawatt hours, equivalent to 1.9 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
3.4	75 km	Mexico: 74 Km Al NOROESTE De TEHUANTEPEC, OAX	SSN
3.4	75 km	Oaxaca, Mexico	RaspberryShake

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Seismograms

Seismic station: TLAPA (TLIG/MX network) | Distance from quake: 308 km / 191 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.

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