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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.3 quake has struck near Agrihan in Northern Mariana Islands

Posted by admin on August 10, 2018 0 Comments

Earthquake location 18.8015S, 145.3213WA light earthquake magnitude 4.3 (ml/mb) strikes 36 km W of Agrihan, Northern Mariana Islands (22 miles) on Sunday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The epicenter of the earthquake was roughly 218.92 km (136 miles) below the earth’s surface. Exact location of earthquake, longitude 145.3213 East, latitude 18.8015 North, depth = 218.92 km. The temblor was detected at 21:27:07 / 9:27 pm (local time epicenter). Date and time of earthquake in UTC/GMT: 05/08/18 / 2018-08-05 11:27:07 / August 5, 2018 @ 11:27 am. Unique identifier: us1000g5t2. Ids that are associated to the event: us1000g5t2.

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. There are an estimated 13,000 light quakes in the world each year. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days eight and in the last 365 days sixty-nine earthquakes of magnitude 3.0 or greater that has struck near.

Questions or comments?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home 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: 36 km W of Agrihan, Northern Mariana Islands.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude 145.3213° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.8015° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 218.92 km Depth of the event in kilometers.
Place 36km W of Agrihan, Northern Mariana Islands Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-08-05 11:27:07 Time when the event occurred. UTC/GMT
Updated 2018-08-10 08:53:12 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 284 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 3.569 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 125 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 us1000g5t2 Id of event.
Event Code 1000g5t2 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000g5t2, A comma-separated list of event ids that are associated to an event.

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