Minor earthquake: M3.3 quake has struck near Blue Lake in CA

A minor earthquake with magnitude 3.3 (ml/mb) was reported 4 kilometers (2 miles) from Blue Lake in CA on Thursday. Exact location of event, longitude -123.95016479492 West, latitude 40.912334442139 North, depth = 21.659999847412 km. Id of earthquake: nc75278246. Event ids that are associated: nc75278246. Global date and time of event UTC/GMT: 11/12/25 / 2025-12-11 13:35:23 / December 11, 2025 @ 1:35 pm. The temblor was detected at 13:35:23 / 1:35 pm (local time epicenter). The earthquake was roughly at a depth of 21.659999847412 km (13 miles).

Close country/countries, United States (c. 310 233 000 pop) (That might be effected). Earthquake epicenter was 22 km (14 miles) from Eureka (c. 27 200 pop), 12 km (8 miles) from Arcata (c. 17 200 pop), 12 km (8 miles) from Bayside (c. 17 100 pop), 13 km (8 miles) from McKinleyville (c. 15 200 pop), 39 km (24 miles) from Fortuna (c. 11 900 pop). Nearest cities/city/towns to hypocenter/epicentrum was Fortuna, Eureka, McKinleyville (min 5000 pop).

Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. Every year there are an estimated 130,000 minor earthquakes in the world. In the past 24 hours, there have been two, in the last 10 days three, in the past 30 days five and in the last 365 days one hundred and nineteen earthquakes of magnitude 3.0 or greater that was reported nearby.

Did you feel it?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 4 km NE of Blue Lake, CA.

More information

Parameter	Value	Description
Magnitude	3.3 mb	The magnitude for the event.
Longitude	-123.95016479492° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	40.912334442139° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	21.659999847412 km	Depth of the event in kilometers.
Place	4 km NE of Blue Lake, CA	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-12-11 13:35:23	Time when the event occurred. UTC/GMT
Updated	2025-12-11 13:37:26	Time when the event was most recently updated. UTC/GMT
Timezone offset		Timezone offset from UTC in minutes at the event epicenter.
Felt		The total number of felt reports
CDI		The maximum reported intensity for the event.
MMI		The maximum estimated instrumental intensity for the event.
Alert Level		The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red.
Review Status	automatic	Indicates whether the event has been reviewed by a human.
Tsunami	0	This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist.
SIG	168	A number describing how significant the event is. Larger numbers indicate a more significant event.
Network	nc	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,nc,	A comma-separated list of network contributors.
Number of Stations Used	27	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.03954	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.09 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	135	The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type	ml	The method or algorithm used to calculate the preferred magnitude for the event.
Event Type	earthquake	Type of seismic event.
Event ID	nc75278246	Id of event.
Event Code	75278246	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,nc75278246,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake: M3.3 quake has struck near Blue Lake in CA

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