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Light earthquake 4.7 mag, 269 km SE of Kodiak, Alaska


Earthquake location 56.072S, -149.285WA light earthquake with magnitude 4.7 (ml/mb) was detected on Thursday, 269 km SE of Kodiak, Alaska (167 miles). Exact location of earthquake, -149.285° West, 56.072° North, depth 20 km. The earthquake occurred at a depth of 20 km (12 miles). Event ids that are associated to the earthquake: at00p4kmp9. Id of event: at00p4kmp9. A tsunami warning has been issued near Kodiak in Alaska (Does not indicate if a tsunami actually did or will exist). The temblor was detected at 11:36:45 / 11:36 am (local time epicenter). Exact time and date of event in UTC/GMT: 22/02/18 / 2018-02-22 21:36:45 / February 22, 2018 @ 9:36 pm.

In the past 24 hours, there have been three, in the last 10 days ninety-eight, in the past 30 days one thousand, six hundred and ninety and in the last 365 days one thousand, nine hundred and thirty-nine earthquakes of magnitude 3.0 or greater that have been detected nearby. Each year there are an estimated 13,000 light quakes in the world. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

How would you describe the shaking?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 269 km SE of Kodiak, Alaska.

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More information

Parameter Value Description
Magnitude 4.7 mb The magnitude for the event.
Longitude -149.285° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 56.072° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 20 km Depth of the event in kilometers.
Place 269km 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 2018-02-22 21:36:45 Time when the event occurred. UTC/GMT
Updated 2018-02-22 21:40:46 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 1 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 340 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network at The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,at, A comma-separated list of network contributors.
Number of Stations Used 69 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 2.49013 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.88 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 176.399985888 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 at00p4kmp9 Id of event.
Event Code 00p4kmp9 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00p4kmp9, A comma-separated list of event ids that are associated to an event.

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