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Minor earthquake: M3.4 quake has struck near Larsen Bay in Alaska



Earthquake location 57.8449S, -153.4538WA minor earthquake with magnitude 3.4 (ml/mb) was reported 46 kilometers (29 miles) from Larsen Bay in Alaska on Sunday. Exact location, longitude -153.4538° West, latitude 57.8449° North, depth = 40.9 km. The earthquake occurred at a depth of 40.9 km (25 miles). The temblor was reported at 07:30:42 / 7:30 am (local time epicenter). Exact time and date of earthquake 18/10/15 / 2015-10-18 15:30:42 / October 18, 2015 @ 3:30 pm UTC/GMT. Event id: ak11742474. Ids that are associated to the earthquake: ak11742474.

Close country/countries, United States (c. 310 233 000 pop) (That might be effected). Event epicenter was 62 km (39 miles) from Kodiak (c. 6 100 pop). Closest city/cities/towns to epicentrum/hypocenter was Kodiak (min 5000 pop).

In the past 24 hours, there have been one, in the last 10 days two, in the past 30 days four and in the last 365 days thirty-three earthquakes of magnitude 3.0 or greater that has struck near. Each year there are an estimated 130,000 minor quakes in the world. Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage.

Did you feel it?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage 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: 46 km NE of Larsen Bay, Alaska.

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More information

Parameter Value Description
Magnitude 3.4 mb The magnitude for the event.
Longitude -153.4538° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 57.8449° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 40.9 km Depth of the event in kilometers.
Place 46km NE of Larsen Bay, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-10-18 15:30:42 Time when the event occurred. UTC/GMT
Updated 2015-10-18 15:57:52 Time when the event was most recently updated. UTC/GMT
Timezone offset -480 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 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 178 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network ak The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,ak, 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 0.74 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 ak11742474 Id of event.
Event Code 11742474 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak11742474, A comma-separated list of event ids that are associated to an event.

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