Light mag. 4.4 earthquake - Leonardo Bravo, 37 km west of Chilpancingo, Guerrero, Mexico, on 6 May 8:31 am (GMT -5) -
Light magnitude 4.4 earthquake at 81 km depth
6 May 13:39 UTC: First to report: VolcanoDiscovery after 8 minutes.
6 May 13:43: Now using data updates from GFZ
6 May 13:52: Magnitude recalculated from 4.3 to 4.4. Hypocenter depth recalculated from 101.0 to 81.0 km (from 63 to 50 mi). Epicenter location corrected by 6.9 km (4.3 mi) towards NW.
Update Thu, 6 May 2021, 13:48Moderate magnitude 4.3 earthquake 33 km southwest of Chilpancingo, Mexico
4.3 quake 6 May 8:31 am (GMT -5)
The German Research Centre for Geosciences (GFZ) reported a magnitude 4.3 quake in Mexico near Chilpancingo, Chilpancingo de los Bravo, Guerrero, only 17 minutes ago. The earthquake hit in the morning on Thursday 6 May 2021 at 8:31 am local time at an intermediate depth of 101 km. 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.
Our monitoring service identified a second report from the European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 4.3 as well.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Inscuinatoyac (El Pueblito) (pop. 690) located 9 km from the epicenter, Chichihualco (pop. 10,700) 28 km away, Chilpancingo (pop. 187,300) 33 km away, Petaquillas (pop. 9,800) 36 km away, Zumpango del Rio (pop. 24,700) 37 km away, Tierra Colorada (pop. 11,500) 40 km away, Tixtla de Guerrero (pop. 22,800) 44 km away, Acapulco de Juarez (pop. 673,500) 66 km away, and Chilapa de Alvarez (pop. 31,200) 68 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
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Date & time: 6 May 2021 13:31:28 UTC -
Local time at epicenter:
6 May 8:31 am (GMT -5)
Depth: 81.0 km
Epicenter latitude / longitude: 17.47°N / 99.84°W
Nearby towns and cities:2 km (1 mi) SW of Tierra Colorada
(pop: 956) --> See nearby quakes!27 km (17 mi) SW of Chichihualco
(pop: 10,700) --> See nearby quakes!37 km (23 mi) WSW of Chilpancingo
(pop: 187,300) --> See nearby quakes!39 km (24 mi) SSE of Tlacotepec
(pop: 6,850) --> See nearby quakes!39 km (24 mi) WSW of Zumpango del Rio (Zumpango del Río)
(pop: 24,700) --> See nearby quakes!47 km (29 mi) NW of Tierra Colorada
(pop: 11,500) --> See nearby quakes!48 km (30 mi) WSW of Tixtla de Guerrero
(pop: 22,800) --> See nearby quakes!69 km (43 mi) N of Acapulco de Juarez
(pop: 673,500) --> See nearby quakes!69 km (43 mi) ENE of Atoyac de Alvarez (Atoyac de Álvarez)
(pop: 21,400) --> See nearby quakes!230 km (143 mi) SSW of Mexico City
(pop: 12,294,200) --> See nearby quakes!
Weather at epicenter at time of quake:
Broken Clouds 23.3°C
(74 F), humidity: 66%, wind: 2 m/s (3 kts) from N
Primary data source: GFZ
(German Research Centre for Geosciences)
Estimated released energy: 2.5 x 1011
joules (69.8 megawatt hours, equivalent to 60 tons of TNT) More info
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.
|4.4||81 km||Guerrero, Mexico||GFZ|
|4.6||80 km||GUERRERO, MEXICO||EMSC|
|4.6||10 km||36 Km SSW of Acapulco De Juárez, Mexico||USGS|
User reports for this quake (8)
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Acapulco, Guerrero / Weak shaking (MMI III) / horizontal (sideways) swinging / 2-5 s : At first I thought I was dizzy but then I realized the patio I was sitting on was moving under me | One user found this interesting.
Acapulco / Light shaking (MMI IV) / 5-10 s : Scary | One user found this interesting.
Acapulco / Strong shaking (MMI VI) / horizontal (sideways) swinging / 2-5 s : . | One user found this interesting.
67.9 km S of epicenter [Map] / Light shaking (MMI IV) / single lateral shake / 2-5 s : Im very scared | One user found this interesting.
Jaleaca (3.6 km SW of epicenter) [Map] / Moderate shaking (MMI V) / vertical swinging (up and down)
Acapulco / Moderate shaking (MMI V) / rattling, vibrating : Woke me from sleep bed was shaking and items on my shelf where moving
Acapulco Gro. / Moderate shaking (MMI V) / single lateral shake / very short
Acapulco diamante (75 km S of epicenter) [Map] / Weak shaking (MMI III) / single lateral shake / very short
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