Sismo leggero mag. 3.6 - Contea di San Bernardino County, 24 km a est da Ridgecrest, Contea di Kern County, Stati Uniti, mercoledí, 07 aprile 2021 -
Sismo leggero magnitudine 3.6 at 9 km depth
7 Apr 13:45 UTC: Primo a segnalare: EMSC dopo 3 minuti.
7 Apr 13:45: Ora utilizzando nuova fonte di dati: USGS
7 Apr 14:15: Magnitudine ricalcolata da 3.5 a 3.6. Profondità ricalcolata da 8.4 a 9.0 km (da 5.2 a 5.6 mi).
Update Wed, 7 Apr 2021, 13:51Magnitude 3.5 earthquake strikes near Ridgecrest, Kern County, California, USA
3.5 quake 7 Apr 6:42 am (GMT -7)
A magnitude 3.5 earthquake near Ridgecrest, Kern County, California, USA, was reported only 9 minutes ago by the United States Geological Survey, considered the key international and national agency that monitors seismic activity in the US. The earthquake occurred at a very shallow depth of 5.2 miles beneath the epicenter early morning on Wednesday 7 April 2021 at 6:42 am 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 European-Mediterranean Seismological Centre (EMSC), which listed it as a magnitude 3.5 earthquake 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 11 miles from the epicenter, Ridgecrest (pop. 28,800) 15 miles away, China Lake Acres (pop. 1,900) 20 miles away, and Inyokern (pop. 1,100) 23 miles away. In Barstow (pop. 23,700, 54 miles away), the quake was probably not felt.
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Data & ora: 7 Apr 2021 13:42:05 UTC -
Ora locale a epicentro:
Wednesday, 7 Apr 2021 06:42 (GMT -7)
Profondità: 9.0 km
Epicentro latitudine / longitudine: 35.60967°N / 117.4105°W
(Contea di San Bernardino
, Contea di Kern
, Stati Uniti
Vulcano più vicino: Coso
(60 km / 37 mi)
Nearby towns and cities:18 km S da Searles Valley
(pop: 1,740) --> Vedi sismi vicini24 km E da Ridgecrest
(pop: 28,800) --> Vedi sismi vicini37 km E da Magnolia
(pop: 1,100) --> Vedi sismi vicini75 km NE da California City (Kern County)
(pop: 13,300) --> Vedi sismi vicini87 km NNO da Barstow
(pop: 23,700) --> Vedi sismi vicini88 km NNO da Barstow Heights (San Bernardino County)
(pop: 24,200) --> Vedi sismi vicini88 km NNO da Barstow Heights (San Bernardino County)
(pop: 24,200) --> Vedi sismi vicini120 km N da Victorville
(pop: 122,200) --> Vedi sismi vicini148 km E da Bakersfield
(pop: 373,600) --> Vedi sismi vicini490 km SE da Sacramento
(pop: 490,700) --> Vedi sismi vicini
Weather at epicenter at time of quake:
Clear Sky 12.7°C
(55 F), humidity: 34%, wind: 3 m/s (5 kts) from SW
Fonte dati primaria: USGS
(United States Geological Survey)
Stima dell'energia sismica liberata: 1.6 x 1010
joules (4.4 megawatt hours, equivalent to 3.79 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.
|3.6||9 km||17km S of Trona, CA, USA||USGS|
|3.6||9 km||SOUTHERN CALIFORNIA, USA||EMSC|
User reports for this quake (4)
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211.4 km SW of epicenter [Map] / Light shaking (MMI IV) / rattling, vibrating / 5-10 s : Woke me up. Windows were rattling, and I felt dizzy for 5-10 seconds. | One user found this interesting.
158.5 km S of epicenter [Map] / Light shaking (MMI IV) / vibration and rolling / 10-15 s
San Bernadino / Light shaking (MMI IV) / rattling, vibrating / very short
Los Angeles / Very weak shaking (MMI II) / single lateral shake / very short
Earlier earthquakes in the same area since 1900
Map of earlier quakes