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Minor World Earthquakes Magnitude -3.9

Minor earthquake: M3.5 quake strikes near Adak in Alaska


Earthquake location 51.5123S, -176.6653WA minor earthquake magnitude 3.5 (mg/mb) was reported Wednesday, 40 kilometers (25 miles) from Adak in Alaska. The temblor was reported at 21:15:36 / 9:15 pm (local time epicenter) at a depth of 41.6 km (26 miles). Global time of event 09/04/15 / 2015-04-09 06:15:36 / April 9, 2015 @ 6:15 am UTC/GMT. A tsunami warning has not been issued, according to the U.S. Geological Survey. Exact location of event, longitude -176.6653 West, latitude 51.5123 North, depth 41.6 km, unique identifier, ak11549980.

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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: 40 km S of Adak, Alaska.


More information

Parameter Value Description
Magnitude 3.5 mb The magnitude for the event.
Longitude -176.6653° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.5123° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 41.6 km Depth of the event in kilometers.
Place 40km S of Adak, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-04-09 06:15:36 Time when the event occurred. UTC/GMT
Updated 2015-04-16 00:53:41 Time when the event was most recently updated. UTC/GMT
Timezone offset -540 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 188 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 0.49 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 ak11549980 Id of event.
Event Code 11549980 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak11549980, A comma-separated list of event ids that are associated to an event.

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