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Terremoto moderato mag. 4.4 - 3.9 km a nord da Santa Rosa, Contea di Sonoma County, Contea di Kern, Stati Uniti, martedì, 13 set 2022 18:39 (GMT -7) -

Terremoto moderato mag. 4.4 - 3.9 km a nord da Santa Rosa, Contea di Sonoma County, Contea di Kern, Stati Uniti, martedì, 13 set 2022 18:39 (GMT -7) Terremoto moderato mag. 4.4 - 3.9 km a nord da Santa Rosa, Contea di Sonoma County, Contea di Kern, Stati Uniti, martedì, 13 set 2022 18:39 (GMT -7)

Terremoto moderato magnitudine 4.4 a 5.6 km di profondità

14 Sep 01:42 UTC: Primo a segnalare: VolcanoDiscovery dopo 3 minuti.
14 Sep 01:42: Ora utilizzando nuova fonte di dati: USGS
14 Sep 01:43: Profondità ricalcolata da 7.0 a 7.5 km (da 4.3 a 4.7 mi). Posizione dell'epicentro corretta di 3.1 km (1.9 mi) al WSW.
14 Sep 05:22: Profondità ricalcolata da 7.5 a 5.6 km (da 4.7 a 3.5 mi).
Update Wed, 14 Sep 2022, 01:48

Moderate magnitude 4.4 quake hits 2 miles northeast of Santa Rosa, California, United States early evening

4.4 quake 13 Sep 6:39 pm (GMT -7)
4.4 quake 13 Sep 6:39 pm (GMT -7)
An earthquake of magnitude 4.4 occurred only 9 minutes ago 2 miles northeast of Santa Rosa, California, United States, the United States Geological Survey reported.
The quake hit at a very shallow depth of 4.7 miles beneath the epicenter near Santa Rosa, Sonoma County, California, USA, early evening on Tuesday, September 13th, 2022, at 6:39 pm 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.
Our monitoring service identified a second report from the European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 4.4 as well.
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 Santa Rosa (pop. 175,000) located 2 miles from the epicenter, Windsor (pop. 27,500) 8 miles away, and Rohnert Park (pop. 42,400) 9 miles away, the quake should have been felt as light shaking.
Weak shaking might have been felt in Petaluma (pop. 60,400) located 17 miles from the epicenter, Napa (pop. 80,400) 26 miles away, and Novato (pop. 55,500) 26 miles away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Vallejo (pop. 121,300) located 35 miles from the epicenter, Fairfield (pop. 113,000) 39 miles away, Vacaville (pop. 96,800) 40 miles away, and Sacramento (pop. 490,700) 66 miles 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 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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Dettagli del sismo

Data e ora14 Sep 2022 01:39:38 UTC -
Ora locale all'epicentromartedì, 13 set 2022 18:39 (GMT -7)
Prof.5.6 km
Epicentro latitudine / longitudine38.475°N / 122.70717°W (Contea di Sonoma, Contea di Kern, Stati Uniti)
Antipode38.475°S / 57.293°E
Intensità di scuotimentoScuotimento moderato vicino all'epicentro
Sentito0 rapporti
Fonte dati primariaUSGS (United States Geological Survey)
Vulcano più vicinoClear Lake (55 km / 34 mi)
Luoghi vicini4 km N da Santa Rosa (pop: 175,000) | Mappa | Sismi nelle vicinanze
12 km SE da Windsor (Sonoma County) (pop: 27,500) | Mappa | Sismi nelle vicinanze
15 km N da Rohnert Park (pop: 42,400) | Mappa | Sismi nelle vicinanze
28 km NNO da Petaluma (pop: 60,400) | Mappa | Sismi nelle vicinanze
42 km ONO da Napa (pop: 80,400) | Mappa | Sismi nelle vicinanze
43 km NNO da Novato (pop: 55,500) | Mappa | Sismi nelle vicinanze
57 km NO da Vallejo (pop: 121,300) | Mappa | Sismi nelle vicinanze
106 km O da Sacramento (pop: 490,700) | Mappa | Sismi nelle vicinanze
Meteo all'epicentro al momento del sismoFew Clouds 19.9°C (68 F), humidity: 61%, wind: 5 m/s (10 kts) from WSW
Energia sismica rilasciata stimata2.5 x 1011 joules (69.8 MWh, equivalent to 60 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.
4.45.6 km3km N of Santa Rosa, CAUSGS
4.35.6 kmNorthern CaliforniaRaspberryShake
4.210 kmNorthern CaliforniaGFZ


Seismic station: Columbia College, Columbia, CA, USA (CMB/BK network) | Distance from quake: 208 km / 130 mi | Show on map | Station Info
Seismic station Columbia College, Columbia, CA, USA: 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

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake.

Earlier earthquakes in the same area

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