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Earthquake breaking news, Minor World Earthquakes Magnitude -3.9

Minor earthquake, 2.9 mag was detected near Helena Valley Northwest in Montana

Posted by admin on December 31, 2015 0 Comments

Earthquake location 46.7859993S, -112.019165WA minor earthquake magnitude 2.9 (ml/mb) has struck on Thursday, 7 kilometers (4 miles) from Helena Valley Northwest in Montana. The epicenter of the earthquake was roughly 1.06 km (1 miles) below the earth’s surface. The temblor was reported at 04:48:07 / 4:48 am (local time epicenter). Exact location of earthquake, -112.019165° West, 46.7859993° North, depth 1.06 km. Global date and time of event UTC/GMT: 31/12/15 / 2015-12-31 11:48:07 / December 31, 2015 @ 11:48 am. All ids that are associated to the event: mb80118049. Unique identifier: mb80118049.

Close country/countries that might be effected, United States (c. 310 233 000 pop). Epicenter of the event was 22 km (13 miles) from Helena (c. 28 200 pop), 20 km (13 miles) from Helena Valley Southeast (c. 8 200 pop), 14 km (9 miles) from Helena Valley West Central (c. 7 900 pop). Nearest cities/city/towns to hypocenter/epicentrum was Helena, Helena Valley Southeast, Helena Valley West Central (min 5000 pop).

There are an estimated 130,000 minor earthquakes in the world each year. In the past 24 hours, there have been 0, in the last 10 days 0, in the past 30 days two and in the last 365 days five earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 3.0 to 4.0 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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 7 km NNE of Helena Valley Northwest, Montana. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 2.9 mb The magnitude for the event.
Longitude -112.019165° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 46.7859993° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 1.06 km Depth of the event in kilometers.
Place 7km NNE of Helena Valley Northwest, Montana Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-12-31 11:48:07 Time when the event occurred. UTC/GMT
Updated 2015-12-31 14:46:07 Time when the event was most recently updated. UTC/GMT
Timezone offset -420 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 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 129 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 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 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 mb80118049 Id of event.
Event Code 80118049 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,mb80118049, A comma-separated list of event ids that are associated to an event.

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