Minor earthquake, 3.28 mag strikes near Tonasket in Washington

A minor earthquake magnitude 3.28 (ml/mb) strikes 9 kilometers (6 miles) from Tonasket in Washington on Sunday. Exact location of earthquake, longitude -119.50166666667 West, latitude 48.777 North, depth = 14.91 km. Event ids that are associated to the earthquake: uw62094846. Id of event: uw62094846. Global time and date of event 20/04/25 / 2025-04-20 08:10:30 / April 20, 2025 @ 8:10 am UTC/GMT. The epicenter of the earthquake was roughly 14.91 km (9 miles) below the earth’s surface. The 3.28-magnitude earthquake was detected at 08:10:30 / 8:10 am (local time epicenter).

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Penticton. Country/countries that might be effected, Canada (c. 33 679 000 pop). Event epicenter was 78 km (49 miles) from Penticton (c. 37 700 pop).

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

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Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 9 km NNW of Tonasket, Washington. This information comes from the USGS Earthquake Notification Service.

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Parameter	Value	Description
Magnitude	3.28 mb	The magnitude for the event.
Longitude	-119.50166666667° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	48.777° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	14.91 km	Depth of the event in kilometers.
Place	9 km NNW of Tonasket, Washington	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-04-20 08:10:30	Time when the event occurred. UTC/GMT
Updated	2025-04-20 08:19:39	Time when the event was most recently updated. UTC/GMT
Timezone offset		Timezone offset from UTC in minutes at the event epicenter.
Felt	6	The total number of felt reports
CDI	4.1	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	reviewed	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	uw	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,uw,	A comma-separated list of network contributors.
Number of Stations Used	15	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.06742	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.11 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	207	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	uw62094846	Id of event.
Event Code	62094846	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,uw62094846,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.28 mag strikes near Tonasket in Washington

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