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Minor mag. 1.1 earthquake - 9km SE of Boonville, CA, on Wednesday, Nov 30, 2022 at 6:24 am (GMT -8) -

Minor magnitude 1.1 earthquake at 5 km depth

30 Nov 16:16 UTC: First to report: IRIS after 1 hour and 51 minutes.
30 Nov 16:16: Now using data updates from USGS
1 Dec 05:06: Magnitude recalculated from 0.9 to 1.1. Hypocenter depth recalculated from 6.4 to 4.7 km (from 4 to 2.9 mi). Epicenter location corrected by 0.7 km (0.5 mi) towards SW.

Earthquake details

Date & time	Nov 30, 2022 14:24:38 UTC -
Local time at epicenter	Wednesday, Nov 30, 2022 at 6:24 am (GMT -8)
Status	Confirmed
Magnitude	1.1
Depth	4.7 km
Epicenter latitude / longitude	38.95017°N / 123.2965°W (California, United States)
Antipode	38.95°S / 56.704°E
Shaking intensity	Not felt
Felt
Primary data source	USGS (United States Geological Survey)
Nearest volcano	Clear Lake (46 km / 29 mi)
Nearby towns and cities	9 km (6 mi) SE of Boonville (pop: 1,040) \| Show on map \| Quakes nearby 24 km (15 mi) SSW of Ukiah (pop: 15,900) \| Show on map \| Quakes nearby 29 km (18 mi) WNW of Cloverdale (Sonoma County) (pop: 8,810) \| Show on map \| Quakes nearby 34 km (21 mi) WSW of Lakeport (pop: 4,810) \| Show on map \| Quakes nearby 58 km (36 mi) W of Clearlake (Lake County) (pop: 15,200) \| Show on map \| Quakes nearby 61 km (38 mi) NW of Windsor (Sonoma County) (pop: 27,500) \| Show on map \| Quakes nearby 76 km (47 mi) NW of Santa Rosa (pop: 175,000) \| Show on map \| Quakes nearby 85 km (53 mi) NW of Rohnert Park (pop: 42,400) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake
Estimated seismic energy released	2.8 x 10⁶ joules (0.783 kilowatt hours) \| 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.	Depth	Location	Source
1.1	4.7 km	9km SE of Boonville, CA	USGS
0.9	10 km	9km SE of Boonville, CA	IRIS
1.1	4.7 km	Near Coast of N. California	RaspberryShake

Most recent quakes Top 20 past 24 hrs Quakes in the US California

Seismograms

Seismic station: Marconi Conference Center, Marshall, CA, USA (MCCM/BK network) | Distance from quake: 97 km / 60 mi | Show on map | Station Info

Seismic station Marconi Conference Center, Marshall, 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. Bandpass filter applied: 0.5-10.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

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Seismic station Marconi Conference Center, Marshall, CA, USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Marconi Conference Center, Marshall, CA, USA: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake, showing horizontal E-W and N-S ground movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Columbia College, Columbia, CA, USA (CMB/BK network) | Distance from quake: 273 km / 170 mi | Show on map | Station Info

Seismic station Columbia College, Columbia, CA, USA: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Columbia College, Columbia, CA, USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Columbia College, Columbia, CA, USA: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: San Andreas Geophysical Obs., Hollister, CA, USA (SAO/BK network) | Distance from quake: 292 km / 182 mi | Show on map | Station Info

Seismic station San Andreas Geophysical Obs., Hollister, CA, USA: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station San Andreas Geophysical Obs., Hollister, CA, USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station San Andreas Geophysical Obs., Hollister, CA, USA: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Mammoth (MLAC/CI network) | Distance from quake: 416 km / 258 mi | Show on map | Station Info

Seismic station Mammoth: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Mammoth: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Mammoth: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Crater Lake Bunk House (CLBH/CC network) | Distance from quake: 451 km / 280 mi | Show on map | Station Info

Seismic station Crater Lake Bunk House: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Crater Lake Bunk House: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Crater Lake Bunk House: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

User reports for this quake

At magnitude 1.1, such a quake wouldn't normally be felt by people, but could be recorded instrumentally.

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