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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.1 mag has occurred near Chirik

Posted by admin on October 5, 2018 0 Comments

Earthquake location 54.7303S, -156.8045WA light earthquake with magnitude 4.1 (ml/mb) was detected on Saturday, 143 km SSW of Chirikof Island, Alaska (89 miles). Exact location of event, longitude -156.8045 West, latitude 54.7303 North, depth = 10 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Event ids that are associated to the earthquake: us2000hf8y. Id of event: us2000hf8y. The earthquake was roughly at a depth of 10 km (6 miles). Date and time of earthquake in UTC/GMT: 15/09/18 / 2018-09-15 19:59:42 / September 15, 2018 @ 7:59 pm. The 4.1-magnitude earthquake was detected at 09:59:42 / 9:59 am (local time epicenter).

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

Did you feel the quake?

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: 143 km SSW of Chirikof Island, Alaska. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude -156.8045° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 54.7303° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 143km SSW of Chirikof Island, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-09-15 19:59:42 Time when the event occurred. UTC/GMT
Updated 2018-10-05 22:31:27 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 259 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 1.286 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.71 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 201 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 us2000hf8y Id of event.
Event Code 2000hf8y An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000hf8y, A comma-separated list of event ids that are associated to an event.

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