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Light mag. 4.9 earthquake - 37 km north of Matias Romero Avendaño, Oaxaca, Mexico, on Monday, Dec 5, 2022 at 7:24 pm (GMT -6) -

Light mag. 4.9 earthquake - 37 km north of Matias Romero Avendaño, Oaxaca, Mexico, on Monday, Dec 5, 2022 at 7:24 pm (GMT -6) Light mag. 4.9 earthquake - 37 km north of Matias Romero Avendaño, Oaxaca, Mexico, on Monday, Dec 5, 2022 at 7:24 pm (GMT -6)

Light magnitude 4.9 earthquake at 129 km depth

6 Dec 01:27 UTC: First to report: VolcanoDiscovery after 3 minutes.
6 Dec 01:29: Now using data updates from INETER
6 Dec 01:35: Magnitude recalculated from 4.8 to 4.9. Hypocenter depth recalculated from 10.0 to 52.0 km (from 6.2 to 32 mi). Epicenter location corrected by 57 km (36 mi) towards S.
6 Dec 01:49: Now using data updates from SSN
Update Tue, 6 Dec 2022, 01:54

Moderate earthquake of magnitude 4.9 just reported 37 km northeast of Matias Romero Avendaño, Mexico

4.9 quake 5 Dec 7:24 pm (GMT -6)
4.9 quake 5 Dec 7:24 pm (GMT -6)
A magnitude 4.9 earthquake near Matias Romero Avendaño, Matías Romero Avendaño, Oaxaca, Mexico, was reported only 29 minutes ago by Mexico's National Seismological Service (SSN), considered the main national agency that monitors seismic activity in Mexico. The earthquake occurred at an intermediate depth of 129 km beneath the epicenter early evening on Monday, December 5th, 2022, at 7:24 pm local time. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
A second report was later issued by the citizen-seismograph network of RaspberryShake, which listed it as a magnitude 4.4 earthquake. Other agencies reporting the same quake include the European-Mediterranean Seismological Centre (EMSC) at magnitude 5.1, and the German Research Centre for Geosciences (GFZ) at magnitude 4.4.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Francisco Javier Jasso (pop. 460) located 7 km from the epicenter, Matias Romero Avendaño (pop. 18,900) 37 km away, Ixtepec (pop. 25,400) 73 km away, Acayucan (pop. 50,900) 85 km away, Juchitan de Zaragoza (pop. 74,800) 85 km away, Jaltipan de Morelos (pop. 32,800) 89 km away, Cosoleacaque (pop. 22,500) 95 km away, and Minatitlan (pop. 112,000) 98 km away.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.

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Earthquake details

Date & timeDec 6, 2022 01:24:41 UTC -
Local time at epicenterMonday, Dec 5, 2022 at 7:24 pm (GMT -6)
StatusConfirmed
Magnitude4.9
Depth129.0 km
Epicenter latitude / longitude17.19°N / 94.91°W (Matias Romero Avendaño, Oaxaca, Mexico)
Antipode17.19°S / 85.09°E
Shaking intensityWeak shaking
Felt10 reports
Primary data sourceSSN (Servicio Sismológico Nacional)
Nearest volcanoSan Martín (156 km / 97 mi)
Nearby towns and cities7 km (4 mi) N of Francisco Javier Jasso (pop: 456) | Show on map | Quakes nearby
37 km (23 mi) NNE of Matias Romero Avendaño (Matías Romero Avendaño) (pop: 18,900) | Show on map | Quakes nearby
73 km (45 mi) NNE of Ixtepec (pop: 25,400) | Show on map | Quakes nearby
85 km (53 mi) S of Acayucan (Veracruz) (pop: 50,900) | Show on map | Quakes nearby
85 km (53 mi) N of Juchitan de Zaragoza (pop: 74,800) | Show on map | Quakes nearby
98 km (61 mi) SSW of Minatitlan (Veracruz) (pop: 112,000) | Show on map | Quakes nearby
193 km (120 mi) E of Oaxaca (pop: 255,000) | Show on map | Quakes nearby
510 km (317 mi) ESE of Mexico (Ciudad de México) (pop: 12,294,200) | Show on map | Quakes nearby
Weather at epicenter at time of quakeLight Rain 21.3°C (70 F), humidity: 96%, wind: 2 m/s (4 kts) from N
Estimated seismic energy released1.4 x 1012 joules (392 megawatt hours, equivalent to 338 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.DepthLocationSource
4.9129 kmMexico: 38 Km Al NORESTE De MATIAS ROMERO, OAXSSN
4.4134 kmChiapas, MexicoGFZ
4.5123 kmVERACRUZ, MEXICOEMSC
4.5120 kmChiapas, MexicoRaspberryShake
4.952 kmMexico: 142 Km Al Noroeste De Chiapas, MéxicoINETER
4.5122 km14 Km NW of Hermanos Cedillo, MexicoUSGS
4.510 kmChiapas, MexicoIRIS

Seismograms

Seismic station: COMITAN (CCIG/MX network) | Distance from quake: 312 km / 194 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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User reports for this quake (10)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Oaxaca (192.7 km W of epicenter) [Map] / Light shaking (MMI IV) : We were on a balcony of a restaurant and it began shaking. At first we thought it was a semi truck going by but there were no cars at all and it was a bit more shaking than a semi truck would’ve normally caused. | One user found this interesting.  
Oaxaca (192.7 km W of epicenter) [Map] / Light shaking (MMI IV) : We were on a balcony of a restaurant and it began shaking. At first we thought it was a semi truck going by but there were no cars at all and it was a bit more shaking than a semi truck would’ve normally caused.  
Orizaba (295 km NW of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 2-5 s : Al ver qué mi mesa se movió y mis cosas sobre ella igual se sacudieron  
San Juan Bautista Tuxtepec Oaxaca (164.3 km NW of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 1-2 s
Comalcalco, Tabasco (209.9 km ENE of epicenter) [Map] / Weak shaking (MMI III) / single lateral shake / 2-5 s : No duró mucho pero asusta  
near Poblado C-21 Licenciado Benito Juarez Garcia, Cárdenas, Tabasco (173.1 km ENE of epicenter) [Map] / Light shaking (MMI IV) / 1-2 s : Estaba en la sala y sentí un movimiento hacia un lado y el miro que estaba cerca crujió  
Córdoba (286.9 km NW of epicenter) [Map] / Light shaking (MMI IV) / 2-5 s : Vibraba la cama los muebles  
193.5 km W of epicenter [Map] / Very weak shaking (MMI II) / rattling, vibrating / 2-5 s : Second floor, obvious shaking while sitting on bed lasting a few seconds  
Córdoba (287.4 km NW of epicenter) [Map] / Light shaking (MMI IV) : The whole room shakes a little  
Tuxtepec Oaxaca (162.9 km NW of epicenter) [Map] / Very weak shaking (MMI II) : Un leve movimiento  

Earlier earthquakes in the same area

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