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Earthquake: M 2.7 quake strikes near Helena Valley West Central in Montana

Posted by admin on February 10, 2015 0 Comments

Earthquake location 46.6983S, -112.0333WA minor earthquake magnitude 2.7 (mg/mb) has striked on Tuesday, 4 kilometers (2 miles) from Helena Valley West Central in Montana. The temblor was reported at 04:02:54 / 4:02 pm (local time epicenter) at a depth of 3.2 km (2 miles). Global time of event 2015-02-10 11:02:54 UTC/GMT. A tsunami warning has not been issued, according to the U.S. Geological Survey. Exact location of event, longitude -112.0333 West, latitude 46.6983 North, depth 3.2 km.

Close countries, United States (c. 310 233 000 pop). The epicenter was 12 km (7 miles) from Helena (c. 28 200 pop), 13 km (8 miles) from Helena Valley Southeast (c. 8 200 pop), 4 km (3 miles) from Helena Valley West Central (c. 7 900 pop). Nearest city, towns to epicentrum/hypocenter was Helena Valley Southeast, Helena, Helena Valley West Central.

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Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded in: 4 km NNE of Helena Valley West Central, Montana.


More information

Parameter Value Description
Magnitude 2.7 mb The magnitude for the event.
Longitude -112.0333° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 46.6983° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 3.2 km Depth of the event in kilometers.
Place 4km NNE of Helena Valley West Central, Montana Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-02-10 23:02:54 Time when the event occurred. UTC/GMT
Updated 2015-02-10 23:51:25 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 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 112 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network mb The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources mb A comma-separated list of network contributors.
Number of Stations Used 38 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.1392389 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.26 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 75.599993952001 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mc The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID mb15801592 Id of event.
Event Code 15801592 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS mb15801592 A comma-separated list of event ids that are associated to an event.

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