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Moderate mag. 5.1 earthquake - 34 km west of Ciudad Altamirano, Pungarabato, Guerrero, Mexico, on Friday, Aug 12, 2022 at 3:17 am (GMT -5) -

Moderate mag. 5.1 earthquake - 34 km west of Ciudad Altamirano, Pungarabato, Guerrero, Mexico, on Friday, Aug 12, 2022 at 3:17 am (GMT -5) Moderate mag. 5.1 earthquake - 34 km west of Ciudad Altamirano, Pungarabato, Guerrero, Mexico, on Friday, Aug 12, 2022 at 3:17 am (GMT -5)

Moderate magnitude 5.1 earthquake at 56 km depth

12 Aug 08:20 UTC: First to report: VolcanoDiscovery after 4 minutes.
12 Aug 08:25: Now using data updates from GFZ
12 Aug 08:38: Now using data updates from USGS
12 Aug 08:49: Now using data updates from SSN
Update Fri, 12 Aug 2022, 08:30

Moderate magnitude 4.9 earthquake 41 km northeast of Huetamo de Nuñez, Mexico

4.9 quake 12 Aug 3:17 am (GMT -5)
4.9 quake 12 Aug 3:17 am (GMT -5)
An earthquake of magnitude 4.9 occurred early morning on Friday, August 12th, 2022, at 3:17 am local time near Huetamo de Nuñez, Huetamo, Michoacan, Mexico, as reported by the German Research Centre for Geosciences (GFZ).
According to preliminary data, the quake was located at a shallow depth of 10 km. Shallow earthquakes are felt more strongly than deeper ones as they are closer to the surface. 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 4.9 earthquake as well. A third agency, the European-Mediterranean Seismological Centre (EMSC), reported the same quake at magnitude 5.0.
Based on the preliminary seismic data, the quake was probably felt by many people in the area of the epicenter. It should not have caused significant damage, other than objects falling from shelves, broken windows, etc.
In Zacapuato (pop. 1,900) located 24 km from the epicenter, the quake should have been felt as light shaking.
Weak shaking might have been felt in Tuzantla (pop. 15,300) located 36 km from the epicenter, Huetamo de Nuñez (pop. 21,900) 41 km away, Tejupilco de Hidalgo (pop. 25,600) 48 km away, Ciudad Altamirano (pop. 25,200) 58 km away, Zitacuaro (pop. 84,300) 67 km away, and Arcelia (pop. 18,700) 71 km away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Morelia (pop. 597,500) located 109 km from the epicenter.
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 & timeAug 12, 2022 08:17:25 UTC -
Local time at epicenterFriday, Aug 12, 2022 at 3:17 am (GMT -5)
StatusConfirmed
Magnitude5.1
Depth56.0 km
Epicenter latitude / longitude18.28°N / 100.98°W (Zirandaro, Guerrero, Mexico)
Antipode18.28°S / 79.02°E
Shaking intensityWeak shaking
Felt53 reports
Primary data sourceSSN (Servicio Sismológico Nacional)
Nearest volcanoZitácuaro-Valle de Bravo (146 km / 91 mi)
Nearby towns and cities30 km (19 mi) W of Coyuca de Catalan (Coyuca de Catalán) (pop: 6,860) | Show on map | Quakes nearby
34 km (21 mi) WSW of Ciudad Altamirano (pop: 25,200) | Show on map | Quakes nearby
40 km (25 mi) SSW of Huetamo de Nuñez (Huetamo de Núñez, Michoacán de Ocampo) (pop: 21,900) | Show on map | Quakes nearby
74 km (46 mi) W of Arcelia (pop: 18,700) | Show on map | Quakes nearby
93 km (58 mi) NE of Ixtapa Zihuatanejo (pop: 67,400) | Show on map | Quakes nearby
176 km (109 mi) WNW of Chilpancingo de los Bravo (pop: 187,300) | Show on map | Quakes nearby
233 km (145 mi) WSW of Mexico (Ciudad de México) (pop: 12,294,200) | Show on map | Quakes nearby
239 km (148 mi) SW of Gustavo Adolfo Madero (Mexico City) (pop: 1,185,800) | Show on map | Quakes nearby
Weather at epicenter at time of quakeOvercast Clouds 21.7°C (71 F), humidity: 96%, wind: 1 m/s (2 kts) from SW
Estimated seismic energy released2.8 x 1012 joules (783 megawatt hours, equivalent to 674 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
5.156 kmMexico: 34 Km Al OESTE De CD ALTAMIRANO, GROSSN
5.280 kmGUERRERO, MEXICOEMSC
5.264 kmGuerrero, MexicoRaspberryShake
5.083 kmMexico: Near MoreliaRENASS
5.154 kmGuerrero, MexicoGFZ
5.264 km11 Km E of Zirándaro De Los Chávez, MexicoUSGS
5.283 kmGuerrero, MexicoGeoAu

Seismograms

Seismic station: Sierra la Laguna Baja California Sur, Mexico (SLBS/IU network) | Distance from quake: 1107 km / 688 mi | Show on map | Station Info
Seismic station Sierra la Laguna Baja California Sur, 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. Source: IRIS Buffer of Uniform Data (BUD) webtool
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User reports for this quake (56)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Club Med Ixtapa (97.5 km SW of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 10-15 s : I thought my partner was shaking her leg in bed but then it got stronger and I heard creaking! The side to side shifting lasted quite a while maybe 15 seconds. | 3 users found this interesting.  
Colonia Luces en el Mar, Coyuca de Benítez, Guerrero (182.7 km SE of epicenter) [Map] / Light shaking (MMI IV) / single lateral shake / very short : double hit that shook the bed. very short each. single lateral shake 2 times separated by a few seconds. | 2 users found this interesting.  
zihuatanejo / Light shaking (MMI IV) / complex motion difficult to describe / 10-15 s : i am on vacation from the Bay area and it had me afraid. i am at the tip of a hotel about 5 floors in the villa . concrete snd rebar luckily. i thiught of a tsunami and was grateful to be up high. it was frightening for not knowing the epicenter and fear | 2 users found this interesting.  
Pilcaya, Guerrero (147 km ENE of epicenter) [Map] / Very weak shaking (MMI II) : Esto va a sonar muy absurdo pero estaba viendo vídeos y derrepente empezó a ladrar mi perro y se empezaron a mover las ventanas y salí de mi habitación temblando de miedo...  
Pátzcuaro Michoacán (149.4 km NNW of epicenter) [Map] / Weak shaking (MMI III) / vibration and rolling / 20-30 s : Me iba sentando, creí que me habria mareado pero al ver qué un cuadro y el foco del cuarto se movía me percate que era más que un mareo.  
Hidalgo, Mich. (161.3 km NNE of epicenter) [Map] / Light shaking (MMI IV) : Estaba dormida y el movimiento me despertó. Sentía como si la cama se moviera hacia adelante y atrás, se escuchaba el crujido de la pared, el movimiento del agua estaba presente  
Santa María Tlalmimilolpan (200.6 km NE of epicenter) [Map] / Weak shaking (MMI III) : Estaba acostada en el sillón y la llave que estaba puesta en la puerta de metal empezó a tambalearse y chocar contra ella repetidamente, después sentí cómo se sacudió el sillón  
Morelia Michoacán (167.3 km N of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 20-30 s : Cortos movimientos de la cama. Duro aproximadamente 30 segundos. La lámpara de la habitación se movía levemente.  
170.6 km NW of epicenter [Map] / Weak shaking (MMI III) / rattling, vibrating : Felt like shaking | One user found this interesting.  
Ixtapa Zihuatanejo, Guerrero (92.9 km SW of epicenter) [Map] / Moderate shaking (MMI V) : My bed, I was sleeping | One user found this interesting.  
Morelia Michoacán / Weak shaking (MMI III) / horizontal (sideways) swinging / 20-30 s : I was sleeping and it Wake me up | One user found this interesting.  
Guadalajara (365.5 km NW of epicenter) [Map] / not felt (reported through our app)
Jiutepec, morelos (201.6 km ENE of epicenter) [Map] / Weak shaking (MMI III) / single lateral shake / very short : Un movimiento leve  
Toluca de lerdo mexico (177.6 km NE of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 20-30 s : Gracias  
Ixtapa zihuatanejo (95.4 km SW of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 2-5 s : La cama se movió lentamente de manera horizontal  
Valle de bravo (230.5 km NE of epicenter) [Map] / Light shaking (MMI IV) : Woke me up bed shaking on 3 rd floor of hotel  
Uruapan, Michoacán (166.4 km NW of epicenter) [Map] / Moderate shaking (MMI V) / vibration and rolling / 5-10 s : Fue un poco fuerte pero se sintió y despertamos mi esposa y yo  
San Felipe Santiago, Villa de Allende, México (154 km NE of epicenter) [Map] / Weak shaking (MMI III) : Estaba dormida y se sacudió la cama y las cosas colgantes fue moderado  
IXTAPA (95.6 km SW of epicenter) [Map] / Weak shaking (MMI III) : Estaba acostada y se sintió como movio o tembló la cama  
Zihuatanejo (94.1 km SW of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 20-30 s
México city (232.9 km NE of epicenter) [Map] / Very weak shaking (MMI II) / horizontal (sideways) swinging / 5-10 s : I am in my bed in México city I listened the alarm and I feel the quake  
Calle 5 86 colonia primero de mayo Uruapan michoac (168 km NW of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 20-30 s : Estaba acostado y vi moverse mis cosas y sentí mi cama moverse  
valle de bravo (136.6 km NE of epicenter) [Map] / Light shaking (MMI IV) : durmiendo me despertó el movimiento trepidatorio duró aprox 10 seg  
Tejupilco (111.5 km NE of epicenter) [Map] / Weak shaking (MMI III) / vibration and rolling / 5-10 s : it was ugly this tremor was vibrating all the windows  
HUETAMO (38 km NNE of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 2-5 s
Col. Tejerias (164.6 km NW of epicenter) [Map] / Moderate shaking (MMI V)
Ixtapa Zihuatanejo, Guerrero (97.1 km SW of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 2-5 s : Estaba durmiendo y se sintió la sacudida y escucho el temblar de muebles  
240.4 km ENE of epicenter [Map] / Very weak shaking (MMI II) : solo se escuchó la alarma  
Metepec (232.6 km NE of epicenter) [Map] / Weak shaking (MMI III) : Algo leve pero me llegue a marear  
Caracuaro (83.3 km N of epicenter) [Map] / Light shaking (MMI IV)
Uruapan Michoacán (168.4 km NW of epicenter) [Map] / Weak shaking (MMI III) / single lateral shake / 2-5 s : Algo fuerte  
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Aftershocks

[More info]

Recorded aftershocks, latest first (3 quakes)

Date and timeMag
Depth
LocationDetails
Sep 5, 2022 11:23
4 weeks ago
3.9

48 km
26 km SW of Ciudad Altamirano, Pungarabato, Guerrero, MexicoMore
Sep 2, 2022 14:47
5 weeks ago
3.9

61 km
28 km SW of Ciudad Altamirano, Pungarabato, Guerrero, MexicoMore
Aug 28, 2022 04:10
5 weeks ago
3.2

54 km
31 km W of Ciudad Altamirano, Pungarabato, Guerrero, MexicoMore

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