Minor earthquake, 2.9 mag strikes near Challis in Idaho

A minor earthquake magnitude 2.9 (ml/mb) has occurred on Thursday, 9 km NNW of Challis, Idaho (6 miles). The 2.9-magnitude earthquake was detected at 14:54:33 / 2:54 pm (local time epicenter). Exact location, longitude -114.2751° West, latitude 44.5799° North, depth = 5 km. Id of earthquake: us20004g9g. Event ids that are associated: mb80113594, us20004g9g. Global time and date of event 10/12/15 / 2015-12-10 21:54:33 / December 10, 2015 @ 9:54 pm UTC/GMT. The epicenter was at a depth of 5 km (3 miles).

In the past 24 hours, there have been 0, in the last 10 days 0, in the past 30 days 0 and in the last 365 days twenty-two earthquakes of magnitude 3.0 or greater that was reported nearby. There are an estimated 130,000 minor earthquakes in the world each year. Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage.

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 9 km NNW of Challis, Idaho.

Challis Idaho

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Parameter	Value	Description
Magnitude	2.9 mb	The magnitude for the event.
Longitude	-114.2751° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	44.5799° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	5 km	Depth of the event in kilometers.
Place	9km NNW of Challis, Idaho	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2015-12-10 21:54:33	Time when the event occurred. UTC/GMT
Updated	2015-12-10 22:12:04	Time when the event was most recently updated. UTC/GMT
Timezone offset	-420	Timezone offset from UTC in minutes at the event epicenter.
Felt	1	The total number of felt reports
CDI	2.7	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	130	A number describing how significant the event is. Larger numbers indicate a more significant event.
Network	us	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,mb,us,	A comma-separated list of network contributors.
Number of Stations Used		The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.678	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.73 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	39	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	us20004g9g	Id of event.
Event Code	20004g9g	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,mb80113594,us20004g9g,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 2.9 mag strikes near Challis in Idaho

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