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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.2 mag strikes near Agrihan in Northern Mariana Islands

Posted by admin on May 31, 2018 0 Comments

Earthquake location 19.021S, 145.3692WA light earthquake magnitude 4.2 (ml/mb) strikes 42 km NW of Agrihan, Northern Mariana Islands (26 miles) on Saturday. The 4.2-magnitude earthquake was detected at 03:55:31 / 3:55 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, longitude 145.3692 East, latitude 19.021 North, depth = 231.51 km. Global time and date of event 04/05/18 / 2018-05-04 17:55:31 / May 4, 2018 @ 5:55 pm UTC/GMT. Event id: us1000e214. Ids that are associated to the earthquake: us1000e214. The epicenter of the earthquake was roughly 231.51 km (144 miles) below the earth’s surface.

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

Did you feel anything?

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. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 42 km NW of Agrihan, Northern Mariana Islands.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude 145.3692° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 19.021° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 231.51 km Depth of the event in kilometers.
Place 42km NW 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 2018-05-04 17:55:31 Time when the event occurred. UTC/GMT
Updated 2018-05-31 20:10:46 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 271 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 3.78 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.91 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 122 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 us1000e214 Id of event.
Event Code 1000e214 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000e214, A comma-separated list of event ids that are associated to an event.

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