Minor earthquake: M3.3 quake has struck near Tonopah in Nevada

A minor earthquake with magnitude 3.3 (ml/mb) was detected on Tuesday, 80 km NE of Tonopah, Nevada (50 miles). The temblor was detected at 08:18:33 / 8:18 am (local time epicenter). Unique identifier: nn00905534. Ids that are associated to the event: nn00905534. Exact location, longitude -116.4708° West, latitude 38.474° North, depth = 6.9 km. The epicenter was at a depth of 6.9 km (4 miles). Date and time of earthquake in UTC/GMT: 07/10/25 / 2025-10-07 08:18:33 / October 7, 2025 @ 8:18 am.

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

Questions or comments?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity 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: 80 km NE of Tonopah, Nevada.

Nevada Tonopah

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Parameter	Value	Description
Magnitude	3.3 mb	The magnitude for the event.
Longitude	-116.4708° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	38.474° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	6.9 km	Depth of the event in kilometers.
Place	80 km NE of Tonopah, Nevada	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-10-07 08:18:33	Time when the event occurred. UTC/GMT
Updated	2025-10-07 08:21:31	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	nn	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,nn,	A comma-separated list of network contributors.
Number of Stations Used	22	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	1.071	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.3761 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	110.91	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	nn00905534	Id of event.
Event Code	00905534	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,nn00905534,	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 Tonopah in Nevada

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