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Light earthquake: M4.5 quake has struck near Kodiak in Alaska

Posted by admin on July 13, 2018 0 Comments

Earthquake location 56.2002S, -149.4759WA light earthquake with magnitude 4.5 (ml/mb) was detected on Friday, 251 km SE of Kodiak, Alaska (156 miles). Unique identifier: ak19864320. Ids that are associated to the event: ak19864320. The epicenter of the earthquake was roughly 2.8 km (2 miles) below the earth’s surface. Exact time and date of earthquake 13/07/18 / 2018-07-13 21:32:58 / July 13, 2018 @ 9:32 pm UTC/GMT. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude -149.4759 West, latitude 56.2002 North, depth = 2.8 km. The 4.5-magnitude earthquake has occurred at 11:32:58 / 11:32 am (local time epicenter).

In the past 24 hours, there have been two, in the last 10 days seventeen, in the past 30 days eighty-nine and in the last 365 days three thousand, seven hundred and fourty earthquakes of magnitude 3.0 or greater that was reported nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. There are an estimated 13,000 light earthquakes in the world each year.

Questions or comments?

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: 251 km SE of Kodiak, Alaska. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -149.4759° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 56.2002° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 2.8 km Depth of the event in kilometers.
Place 251km 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 2018-07-13 21:32:58 Time when the event occurred. UTC/GMT
Updated 2018-07-13 21:43:11 Time when the event was most recently updated. UTC/GMT
Timezone offset -600 Timezone offset from UTC in minutes at the event epicenter.
Felt 2 The total number of felt reports
CDI 4.6 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 312 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 0.83 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 ak19864320 Id of event.
Event Code 19864320 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak19864320, A comma-separated list of event ids that are associated to an event.

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