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Light earthquake 4 mag, 254 km ESE of Kodiak, Alaska

Posted by admin on October 19, 2018 0 Comments

Earthquake location 56.5702S, -148.8504WA light earthquake with magnitude 4 (ml/mb) was detected on Friday, 254 km ESE of Kodiak, Alaska (158 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of event in UTC/GMT: 19/10/18 / 2018-10-19 17:58:27 / October 19, 2018 @ 5:58 pm. Exact location, longitude -148.8504° West, latitude 56.5702° North, depth = 10 km. Event ids that are associated to the earthquake: ak20287576, us1000hemf. Id of event: us1000hemf. The 4-magnitude earthquake has occurred at 07:58:27 / 7:58 am (local time epicenter). The epicenter of the earthquake was roughly 10 km (6 miles) below the earth’s surface.

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Every year there are an estimated 13,000 light earthquakes in the world. In the past 24 hours, there have been four, in the last 10 days twelve, in the past 30 days sixty-two and in the last 365 days three thousand, eight hundred and fifty-three earthquakes of magnitude 3.0 or greater that has occurred nearby.

Did you feel anything?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 254 km ESE of Kodiak, Alaska. This information 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 -148.8504° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 56.5702° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 254km 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 2018-10-19 17:58:27 Time when the event occurred. UTC/GMT
Updated 2018-10-19 19:39:11 Time when the event was most recently updated. UTC/GMT
Timezone offset -600 Timezone offset from UTC in minutes at the event epicenter.
Felt 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 ,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 2.368 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.64 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 191 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 us1000hemf Id of event.
Event Code 1000hemf An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak20287576,us1000hemf, A comma-separated list of event ids that are associated to an event.

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