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Minor World Earthquakes Magnitude -3.9

Minor earthquake, 3.7 mag was detected near Kodiak in Alaska

Earthquake location 55.9514S, -149.4036WA minor earthquake magnitude 3.7 (ml/mb) strikes 274 km SE of Kodiak, Alaska (170 miles) on Wednesday. The earthquake occurred at a depth of 7.36 km (5 miles) below the earth’s surface. Exact location of earthquake, -149.4036° West, 55.9514° North, depth 7.36 km. Global date and time of event UTC/GMT: 21/02/18 / 2018-02-21 20:05:19 / February 21, 2018 @ 8:05 pm. The 3.7-magnitude earthquake was detected at 10:05:19 / 10:05 am (local time epicenter). Event id: us2000dbf9. Ids that are associated to the earthquake: ak18479566, us2000dbf9.

Every year there are an estimated 130,000 minor earthquakes in the world. In the past 24 hours, there have been four hundred and thirty-nine, in the last 10 days seven hundred and sixty-five, in the past 30 days two thousand, seven hundred and seventy-two and in the last 365 days two thousand, seven hundred and seventy-six earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage.

How would you describe the shaking?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 274 km SE of Kodiak, Alaska.

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More information

Parameter Value Description
Magnitude 3.7 mb The magnitude for the event.
Longitude -149.4036° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 55.9514° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 7.36 km Depth of the event in kilometers.
Place 274km 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 2018-02-21 20:05:19 Time when the event occurred. UTC/GMT
Updated 2018-03-20 20:57:27 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 211 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network us The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,ak,us, 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 2.497 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.85 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 209 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 us2000dbf9 Id of event.
Event Code 2000dbf9 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak18479566,us2000dbf9, A comma-separated list of event ids that are associated to an event.

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