Sismo leggero mag. 3.1 - Contea di San Bernardino County, 21 km a est da Ridgecrest, Contea di Kern County, Stati Uniti, giovedí, 29 aprile 2021 -
Sismo leggero magnitudine 3.1 at 7 km depth
29 Apr 17:14 UTC: Primo a segnalare: USGS dopo 2 minuti.
29 Apr 18:24: Profondità ricalcolata da 6.6 a 6.7 km (da 4.1 a 4.2 mi).
Update Thu, 29 Apr 2021, 17:18Small tremor of magnitude 3.1 just reported 13 miles east of Ridgecrest, California, United States
3.1 quake 29 Apr 10:12 am (GMT -7)
Just 6 minutes ago, a 3.1-magnitude earthquake struck near Ridgecrest, Kern County, California, USA. The tremor was recorded in the morning on Thursday 29 April 2021 at 10:12 am local time, at a very shallow depth of 4.1 miles below the surface.
The event was filed by the United States Geological Survey, the first seismological agency to report it.
Our monitoring service identified a second report from the European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 3.1 as well.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Searles Valley (pop. 1,700) located 8 miles from the epicenter, Ridgecrest (pop. 28,800) 13 miles away, and China Lake Acres (pop. 1,900) 18 miles away. In Inyokern (pop. 1,100, 21 miles away), the quake was probably not felt.
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Data & ora: 29 Apr 2021 17:12:19 UTC -
Ora locale a epicentro:
Thursday, 29 Apr 2021 10:12 (GMT -7)
Profondità: 6.7 km
Epicentro latitudine / longitudine: 35.653°N / 117.43933°W
(Contea di San Bernardino
, Contea di Kern
, Stati Uniti
Vulcano più vicino: Coso
(54 km / 34 mi)
Nearby towns and cities:13 km SSO da Searles Valley
(pop: 1,740) --> Vedi sismi vicini21 km E da Ridgecrest
(pop: 28,800) --> Vedi sismi vicini34 km E da Magnolia
(pop: 1,100) --> Vedi sismi vicini77 km NE da California City (Kern County)
(pop: 13,300) --> Vedi sismi vicini92 km NNO da Barstow
(pop: 23,700) --> Vedi sismi vicini94 km NNO da Barstow Heights (San Bernardino County)
(pop: 24,200) --> Vedi sismi vicini94 km NNO da Barstow Heights (San Bernardino County)
(pop: 24,200) --> Vedi sismi vicini124 km NNE da Lancaster
(pop: 161,100) --> Vedi sismi vicini146 km ENE da Bakersfield
(pop: 373,600) --> Vedi sismi vicini485 km SE da Sacramento
(pop: 490,700) --> Vedi sismi vicini
Fonte dati primaria: USGS
(United States Geological Survey)
Stima dell'energia sismica liberata: 2.8 x 109
joules (783 kilowatt hours, equivalent to 0.674 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.
|3.1||6.7 km||13km SSW of Searles Valley, CA, USA||USGS|
|3.1||7 km||SOUTHERN CALIFORNIA, USA||EMSC|
User reports for this quake (3)
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Trona, CA / Moderate shaking (MMI V) / complex motion difficult to describe / very short : I heard a loud thump like sound...sounded like a train coming ..then some minor jolts ending with a good size jolt side to side motion | 2 users found this interesting.
Trona, ca / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
Ridgecrest (21.2 km W of epicenter) [Map]
/ Very weak shaking (MMI II) / single vertical bump / very short (reported through our app)
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