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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.1 mag has occurred near Agrihan in Northern Mariana Islands

Posted by admin on October 6, 2017 0 Comments

Earthquake location 19.0286S, 145.306WA light earthquake magnitude 4.1 (ml/mb) has struck on Monday, 47 km NW of Agrihan, Northern Mariana Islands (29 miles). Exact location of earthquake, longitude 145.306 East, latitude 19.0286 North, depth = 202.23 km. Exact time and date of event in UTC/GMT: 18/09/17 / 2017-09-18 00:33:27 / September 18, 2017 @ 12:33 am. Id of earthquake: us2000awku. Event ids that are associated: us2000awku. The epicenter of the earthquake was roughly 202.23 km (126 miles) below the earth’s surface. The temblor was detected at 10:33:27 / 10:33 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Every year there are an estimated 13,000 light earthquakes in the world. In the past 24 hours, there have been three, in the last 10 days five, in the past 30 days eight and in the last 365 days sixty-five earthquakes of magnitude 3.0 or greater that has occurred 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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 47 km NW of Agrihan, Northern Mariana Islands. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude 145.306° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 19.0286° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 202.23 km Depth of the event in kilometers.
Place 47km 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 2017-09-18 00:33:27 Time when the event occurred. UTC/GMT
Updated 2017-10-06 02:05:25 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 259 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 5.424 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.54 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 132 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 us2000awku Id of event.
Event Code 2000awku An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000awku, A comma-separated list of event ids that are associated to an event.

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