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Earthquake breaking news, Minor World Earthquakes Magnitude -3.9

Minor earthquake: M3 quake strikes near Helena Valley Northwest in Montana

Earthquake location 46.7983S, -112.1905WA minor earthquake magnitude 3 (mg/mb) has struck on Thursday, 12 kilometers (7 miles) from Helena Valley Northwest in Montana. The temblor was reported at 12:31:38 / 12:31 pm (local time epicenter) at a depth of 10.6 km (7 miles). Global time of event 18/06/15 / 2015-06-18 18:31:38 / June 18, 2015 @ 6:31 pm UTC/GMT. A tsunami warning has not been issued, according to the U.S. Geological Survey. Exact location of event, longitude -112.1905 West, latitude 46.7983 North, depth 10.6 km, unique identifier, mb15196752. Ids that are associated to the event, ,mb15196752,.

Close countries, United States (c. 310 233 000 pop). The epicenter was 26 km (16 miles) from Helena (c. 28 200 pop), 29 km (18 miles) from Helena Valley Southeast (c. 8 200 pop), 18 km (11 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: 12 km NW of Helena Valley Northwest, Montana.

More information

Parameter Value Description
Magnitude 3 mb The magnitude for the event.
Longitude -112.1905° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 46.7983° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10.6 km Depth of the event in kilometers.
Place 12km NW 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 2015-06-18 18:31:38 Time when the event occurred. UTC/GMT
Updated 2015-06-18 19:23:06 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 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 139 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 25 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.1077978 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 129.599989632 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 mb15196752 Id of event.
Event Code 15196752 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,mb15196752, A comma-separated list of event ids that are associated to an event.

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