Minor earthquake 2.9 mag, 7 km E of Challis, Idaho

A minor earthquake magnitude 2.9 (ml/mb) strikes 7 km E of Challis, Idaho (4 miles) on Thursday. The 2.9-magnitude earthquake was detected at 20:02:00 / 8:02 pm (local time epicenter). Date and time of earthquake in UTC/GMT: 18/09/15 / 2015-09-18 02:02:00 / September 18, 2015 @ 2:02 am. The epicenter of the earthquake was roughly 2.82 km (2 miles) below the earth’s surface. Exact location of event, depth 2.82 km, -114.1411° West, 44.4961° North. Id of earthquake: us20003l29. Event ids that are associated: us20003l29.

Each year there are an estimated 130,000 minor earthquakes in the world. 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 has occurred nearby. 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 data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 7 km E of Challis, Idaho.

Challis Idaho

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Parameter	Value	Description
Magnitude	2.9 mb	The magnitude for the event.
Longitude	-114.1411° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	44.4961° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	2.82 km	Depth of the event in kilometers.
Place	7km E 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	2015-09-18 02:02:00	Time when the event occurred. UTC/GMT
Updated	2015-09-18 02:12:33	Time when the event was most recently updated. UTC/GMT
Timezone offset	-360	Timezone offset from UTC in minutes at the event epicenter.
Felt	2	The total number of felt reports
CDI	2.2	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	,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	0.953	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	1.07 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	65	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	us20003l29	Id of event.
Event Code	20003l29	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us20003l29,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake 2.9 mag, 7 km E of Challis, Idaho

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