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Minor earthquake 3.4 mag, 112 km NW of Chirikof Island, Alaska


Earthquake location 56.5289S, -156.9173WA minor earthquake magnitude 3.4 (mg/mb) was reported Thursday, 112 kilometers (70 miles) from Chirik. The temblor was reported at 11:32:16 / 11:32 am (local time epicenter) at a depth of 90.5 km (56 miles). Global time of event 12/03/15 / 2015-03-12 19:32:16 / March 12, 2015 @ 7:32 pm UTC/GMT. A tsunami warning has not been issued, according to the U.S. Geological Survey. Exact location of event, longitude -156.9173 West, latitude 56.5289 North, depth 90.5 km, unique identifier, ak11527689.

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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: 112 km NW of Chirikof Island, Alaska.


More information

Parameter Value Description
Magnitude 3.4 mb The magnitude for the event.
Longitude -156.9173° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 56.5289° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 90.5 km Depth of the event in kilometers.
Place 112km NW of Chirikof Island, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-03-12 19:32:16 Time when the event occurred. UTC/GMT
Updated 2015-03-12 20:48:54 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 0.75 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 ak11527689 Id of event.
Event Code 11527689 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak11527689, A comma-separated list of event ids that are associated to an event.

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