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Light World Earthquakes Magnitude 4-4.9

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


Earthquake location 13.8183S, 145.1219WA light earthquake magnitude 4.2 (ml/mb) has occurred on Wednesday, 38 kilometers (24 miles) from Rota in Northern Mariana Islands. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, depth 113.55 km, 145.1219° East, 13.8183° North. The earthquake occurred at a depth of 113.55 km (71 miles) below the earth’s surface. Event ids that are associated to the earthquake: us70008wmz. Id of event: us70008wmz. Date and time of earthquake in UTC/GMT: 07/04/20 / 2020-04-07 23:37:32 / April 7, 2020 @ 11:37 pm. The 4.2-magnitude earthquake has occurred at 09:37:32 / 9:37 am (local time epicenter).

Nearby country/countries that might be effected, Guam (c. 159 000 pop). Nearest cities/city/towns to hypocenter/epicentrum was Merizo Village, Umatac Village, Inarajan Village (min 5000 pop). Event epicenter was 45 km (28 miles) from Dededo Village (c. 44 900 pop), 40 km (25 miles) from Yigo Village (c. 20 500 pop), 52 km (32 miles) from Tamuning-Tumon-Harmon Village (c. 19 700 pop), 54 km (33 miles) from Mangilao Village (c. 15 200 pop), 52 km (32 miles) from Barrigada Village (c. 8 900 pop), 68 km (42 miles) from Santa Rita Village (c. 7 500 pop).

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

How would you describe the shaking?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city 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: 38 km SSW of Rota, Northern Mariana Islands.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude 145.1219° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 13.8183° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 113.55 km Depth of the event in kilometers.
Place 38km SSW of Rota, 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 2020-04-07 23:37:32 Time when the event occurred. UTC/GMT
Updated 2020-04-15 23:07:38 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 0.335 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.79 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 120 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 us70008wmz Id of event.
Event Code 70008wmz An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us70008wmz, A comma-separated list of event ids that are associated to an event.

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