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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.4 mag has occurred near Agrihan in Northern Mariana Islands

Posted by admin on October 29, 2018 0 Comments

Earthquake location 19.7007S, 147.9041WA light earthquake magnitude 4.4 (ml/mb) has struck on Friday, 256 km ENE of Agrihan, Northern Mariana Islands (159 miles). The 4.4-magnitude earthquake was detected at 07:15:07 / 7:15 am (local time epicenter). Exact location of event, depth 10 km, 147.9041° East, 19.7007° North. The earthquake was roughly at a depth of 10 km (6 miles). Event id: us1000hg4b. Ids that are associated to the earthquake: us1000hg4b. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of earthquake 18/10/18 / 2018-10-18 21:15:07 / October 18, 2018 @ 9:15 pm UTC/GMT.

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 one and in the last 365 days one earthquakes of magnitude 3.0 or greater that have been detected nearby.

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 256 km ENE of Agrihan, Northern Mariana Islands.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude 147.9041° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 19.7007° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 256km ENE 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 2018-10-18 21:15:07 Time when the event occurred. UTC/GMT
Updated 2018-10-29 21:51:19 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 298 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 4.872 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 144 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 us1000hg4b Id of event.
Event Code 1000hg4b An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000hg4b, A comma-separated list of event ids that are associated to an event.

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