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Light mag. 4.0 earthquake - North Pacific Ocean, 40 km south of Salina Cruz, Oaxaca, Mexico, on Friday, Mar 17, 2023 at 12:10 pm (GMT -6) -

Light magnitude 4.0 earthquake at 72 km depth

17 Mar 18:32 UTC: First to report: RaspberryShake after 21 minutes.
17 Mar 19:00: Now using data updates from SSN

Earthquake details

Date & time	Mar 17, 2023 18:10:40 UTC -
Local time at epicenter	Friday, Mar 17, 2023 at 12:10 pm (GMT -6)
Status	Confirmed
Magnitude	4
Depth	72.3 km
Epicenter latitude / longitude	15.84°N / 95.33°W (North Pacific Ocean, Mexico)
Antipode	15.84°S / 84.67°E
Shaking intensity	Very weak shaking
Felt	0 reports
Primary data source	SSN (Servicio Sismológico Nacional)
Nearest volcano	###NEARESTVOLCANO2###
Nearby towns and cities	21 km (13 mi) SSE of Concepcion Bamba (pop: 312) \| Show on map \| Quakes nearby 40 km (25 mi) SSW of Salina Cruz (pop: 76,600) \| Show on map \| Quakes nearby 40 km (25 mi) ESE of Santiago Astata (pop: 2,210) \| Show on map \| Quakes nearby 55 km (34 mi) S of Santo Domingo Tehuantepec (Tehuantepec) (pop: 42,100) \| Show on map \| Quakes nearby 56 km (35 mi) S of San Blas Atempa (pop: 12,000) \| Show on map \| Quakes nearby 68 km (42 mi) S of Santa Maria Jalapa del Marqués (pop: 9,000) \| Show on map \| Quakes nearby 74 km (46 mi) SSW of Juchitan de Zaragoza (pop: 74,800) \| Show on map \| Quakes nearby 567 km (352 mi) SE of Mexico (pop: 12,294,200) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Clear Sky 27.8°C (82 F), humidity: 71%, wind: 6 m/s (11 kts) from SSW
Estimated seismic energy released	6.3 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.

Mag.	Depth	Location	Source
4.0	72 km	Mexico: 41 Km Al SUROESTE De SALINA CRUZ, OAX	SSN
4.0	72 km	OFFSHORE OAXACA, MEXICO	EMSC
4.0	72 km	Near Coast of Oaxaca, Mexico	RaspberryShake

Most recent quakes Top 20 past 24 hrs Quakes in Mexico

Seismograms

Seismic station: COMITAN (CCIG/MX network) | Distance from quake: 345 km / 214 mi | Show on map | Station Info

Seismic station COMITAN: 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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Seismic station COMITAN: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station COMITAN: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake, showing horizontal E-W and N-S ground movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: TLAPA (TLIG/MX network) | Distance from quake: 394 km / 245 mi | Show on map | Station Info

Seismic station TLAPA: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station TLAPA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station TLAPA: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Unam - Mexico, Mexico (UNM/G network) | Distance from quake: 563 km / 350 mi | Show on map | Station Info

Seismic station Unam - Mexico, Mexico: 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: 0.2-5.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station Unam - Mexico, Mexico: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Unam - Mexico, Mexico: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Morelia, Mich, MX (MOIG/MX network) | Distance from quake: 754 km / 469 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: 0.2-5.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station Morelia, Mich, MX: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Morelia, Mich, MX: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Managua, Nicaragua (MGAN/NU network) | Distance from quake: 1062 km / 660 mi | Show on map | Station Info

Seismic station Managua, Nicaragua: 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: 0.2-5.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station Managua, Nicaragua: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Managua, Nicaragua: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. 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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