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Minor earthquake, 3 mag was detected near Kodiak in Alaska


Earthquake location 56.2614S, -148.6059WA minor earthquake magnitude 3 (ml/mb) has struck on Tuesday, 286 km SE of Kodiak, Alaska (178 miles). Exact location of earthquake, -148.6059° West, 56.2614° North, depth 12 km. The epicenter was at a depth of 12 km (7 miles). Global date and time of event UTC/GMT: 28/02/18 / 2018-02-28 03:41:42 / February 28, 2018 @ 3:41 am. The temblor was picked up at 17:41:42 / 5:41 pm (local time epicenter). Event ids that are associated to the earthquake: ak18616395. Id of event: ak18616395.

There are an estimated 130,000 minor earthquakes in the world each year. In the past 24 hours, there have been sixty-one, in the last 10 days two hundred and thirty, in the past 30 days one thousand, one hundred and fourty-eight and in the last 365 days two thousand, three hundred and ninety-nine earthquakes of magnitude 3.0 or greater that have been detected nearby. Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage.

Questions or comments?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home 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: 286 km SE of Kodiak, Alaska.

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More information

Parameter Value Description
Magnitude 3 mb The magnitude for the event.
Longitude -148.6059° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 56.2614° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 12 km Depth of the event in kilometers.
Place 286km SE of Kodiak, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-02-28 03:41:42 Time when the event occurred. UTC/GMT
Updated 2018-03-07 21:09:04 Time when the event was most recently updated. UTC/GMT
Timezone offset -600 Timezone offset from UTC in minutes at the event epicenter.
Felt The total number of felt reports
CDI 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 138 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 0.69 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 ak18616395 Id of event.
Event Code 18616395 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak18616395, A comma-separated list of event ids that are associated to an event.

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