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Light earthquake 4 mag, 271 km ESE of Kodiak, Alaska

Posted by admin on February 9, 2018 0 Comments

Earthquake location 56.4528S, -148.6669WA light earthquake magnitude 4 (ml/mb) strikes 271 km ESE of Kodiak, Alaska (168 miles) on Thursday. The earthquake was roughly at a depth of 13.12 km (8 miles). Exact time and date of event in UTC/GMT: 09/02/18 / 2018-02-09 08:22:21 / February 9, 2018 @ 8:22 am. Exact location of event, longitude -148.6669 West, latitude 56.4528 North, depth = 13.12 km. The 4-magnitude earthquake was detected at 22:22:21 / 10:22 pm (local time epicenter). Unique identifier: us2000czdu. Ids that are associated to the event: us2000czdu. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

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

Did you feel anything?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 271 km ESE of Kodiak, Alaska. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -148.6669° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 56.4528° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 13.12 km Depth of the event in kilometers.
Place 271km ESE 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 2018-02-09 08:22:21 Time when the event occurred. UTC/GMT
Updated 2018-02-09 09:00:21 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 246 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 ,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 2.517 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.75 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 139 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mb The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us2000czdu Id of event.
Event Code 2000czdu An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000czdu, A comma-separated list of event ids that are associated to an event.

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