2 spots left on Iceland Geo Tour 16-30 July 2022

Terremoto moderato mag. 3.8 - 38 km a nord da Santa Rosa, Contea di Sonoma County, Contea di Kern, Stati Uniti, giovedì, 3 mar 2022 03:39 (GMT -8) -

Terremoto moderato mag. 3.8 - 38 km a nord da Santa Rosa, Contea di Sonoma County, Contea di Kern, Stati Uniti, giovedì,  3 mar 2022 03:39 (GMT -8) Terremoto moderato mag. 3.8 - 38 km a nord da Santa Rosa, Contea di Sonoma County, Contea di Kern, Stati Uniti, giovedì,  3 mar 2022 03:39 (GMT -8)

Terremoto moderato magnitudine 3.8 a 0.4 km di profondità

3 Mar 11:43 UTC: Primo a segnalare: USGS dopo 4 minuti.
3 Mar 11:45: Magnitudine ricalcolata da 3.5 a 3.9.
3 Mar 15:32: Magnitudine ricalcolata da 3.9 a 3.8.
3 Mar 19:04: Profondità ricalcolata da 0.6 a 0.4 km (da 0.4 a 0.2 mi).
Update Thu, 3 Mar 2022, 11:51
Small 3.9 quake hits near Santa Rosa, Sonoma County, California, USA
3.9 quake 3 Mar 3:39 am (GMT -8)
3.9 quake 3 Mar 3:39 am (GMT -8)
A very shallow magnitude 3.9 earthquake was reported early morning near Santa Rosa, Sonoma County, California, USA.
According to the United States Geological Survey, the quake hit on Thursday, March 3rd, 2022, at 3:39 am local time at a very shallow depth of 0.4 miles. 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.
Our monitoring service identified a second report from the citizen-seismograph network of RaspberryShake which listed the quake at magnitude 3.9 as well. A third agency, the European-Mediterranean Seismological Centre (EMSC), reported the same quake at magnitude 3.9.
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 Cobb (pop. 1,800) located 4 miles from the epicenter, the quake should have been felt as light shaking.
Weak shaking might have been felt in Russian River (pop. 11,700) located 13 miles from the epicenter, Russian River (pop. 11,700) 13 miles away, Clearlake (pop. 15,200) 14 miles away, and Windsor (pop. 27,500) 16 miles away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Santa Rosa (pop. 175,000) located 23 miles from the epicenter, Rohnert Park (pop. 42,400) 30 miles away, Petaluma (pop. 60,400) 38 miles away, and Napa (pop. 80,400) 42 miles away.

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Earthquake data

Dettagli del sismo

Data e ora3 Mar 2022 11:39:58 UTC -
Ora locale all'epicentrogiovedì, 3 mar 2022 03:39 (GMT -8)
StatusConfermato
Magnitudine3.8
Prof.0.4 km
Epicentro latitudine / longitudine38.7805°N / 122.75817°W (Contea di Sonoma, Contea di Kern, Stati Uniti)
Antipodo38.781°S / 57.242°E
Intensità di scuotimentoScuotimento leggero
Sentito1 rapporto
Fonte dati primariaUSGS (United States Geological Survey)
Vulcano più vicinoClear Lake (21 km / 13 mi)
Luoghi vicini6 km SSO da Cobb (pop: 1,780) | Mappa | Sismi nelle vicinanze
21 km NNE da Russian River (Sonoma County) (pop: 11,700) | Mappa | Sismi nelle vicinanze
21 km NNE da Russian River (pop: 11,700) | Mappa | Sismi nelle vicinanze
23 km SSO da Clearlake (Lake County) (pop: 15,200) | Mappa | Sismi nelle vicinanze
26 km N da Windsor (Sonoma County) (pop: 27,500) | Mappa | Sismi nelle vicinanze
38 km N da Santa Rosa (pop: 175,000) | Mappa | Sismi nelle vicinanze
49 km N da Rohnert Park (pop: 42,400) | Mappa | Sismi nelle vicinanze
62 km N da Petaluma (pop: 60,400) | Mappa | Sismi nelle vicinanze
68 km NO da Napa (pop: 80,400) | Mappa | Sismi nelle vicinanze
112 km O da Sacramento (pop: 490,700) | Mappa | Sismi nelle vicinanze
Meteo all'epicentro al momento del sismoOvercast Clouds 4.4°C (40 F), humidity: 80%, wind: 2 m/s (3 kts) from NW
Energia sismica rilasciata stimata3.2 x 1010 joules (8.78 MWh, equivalent to 7.56 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.Prof.UbicazioneFonte
3.80.4 km0km NNW of The Geysers, CAUSGS
3.95 kmNORTHERN CALIFORNIAEMSC
3.80.4 kmNorthern CaliforniaRaspberryShake

User reports for this quake (1)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Translate
Ukiah ca / Light shaking (MMI IV) / rattling, vibrating / very short
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