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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 14.4338S, 145.601WA light earthquake magnitude 4.2 (ml/mb) has occurred on Wednesday, 52 kilometers (32 miles) from Rota in Northern Mariana Islands. Global date and time of event UTC/GMT: 10/07/18 / 2018-07-10 23:40:47 / July 10, 2018 @ 11:40 pm. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). All ids that are associated to the event: us2000g47z. Unique identifier: us2000g47z. The temblor was picked up at 09:40:47 / 9:40 am (local time epicenter). The earthquake occurred at a depth of 46.28 km (29 miles). Exact location of earthquake, 145.601° East, 14.4338° North, depth 46.28 km.

Nearest cities/city/towns to hypocenter/epicentrum was Saipan, San Jose Village (min 5000 pop). Country/countries that might be effected, Northern Mariana Islands (c. 54 000 pop). Event epicenter was 88 km (55 miles) from Saipan (c. 48 200 pop), 59 km (37 miles) from San Jose Village (c. 15 000 pop).

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

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. 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: 52 km NE of Rota, Northern Mariana Islands.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude 145.601° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 14.4338° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 46.28 km Depth of the event in kilometers.
Place 52km NE 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 2018-07-10 23:40:47 Time when the event occurred. UTC/GMT
Updated 2018-07-19 22:14:41 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 0.822 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.76 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 172 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 us2000g47z Id of event.
Event Code 2000g47z An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000g47z, A comma-separated list of event ids that are associated to an event.

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