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Minor earthquake: M3.3 quake has struck near Kodiak in Alaska


Earthquake location 56.231S, -148.4266WA minor earthquake magnitude 3.3 (ml/mb) has occurred on Wednesday, 297 km SE of Kodiak, Alaska (185 miles). Unique identifier: ak18572536. Ids that are associated to the event: ak18572536. Exact location of event, depth 10 km, -148.4266° West, 56.231° North. The temblor was picked up at 23:21:13 / 11:21 pm (local time epicenter). Global time and date of event 01/03/18 / 2018-03-01 09:21:13 / March 1, 2018 @ 9:21 am UTC/GMT. The epicenter of the earthquake was roughly 10 km (6 miles) below the earth’s surface.

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

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 297 km SE of Kodiak, Alaska.

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More information

Parameter Value Description
Magnitude 3.3 mb The magnitude for the event.
Longitude -148.4266° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 56.231° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 297km 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 2018-03-01 09:21:13 Time when the event occurred. UTC/GMT
Updated 2018-03-09 03:15:59 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 168 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 0.77 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 ak18572536 Id of event.
Event Code 18572536 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak18572536, A comma-separated list of event ids that are associated to an event.

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