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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.5 mag strikes near Yonakuni in Japan


Earthquake location 24.848S, 122.5378WA light earthquake with magnitude 4.5 (ml/mb) was reported 63 kilometers (39 miles) from Yonakuni in Japan on Thursday. The temblor was detected at 02:45:20 / 2:45 am (local time epicenter). Event id: us1000aqbk. Ids that are associated to the earthquake: us1000aqbk. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, longitude 122.5378 East, latitude 24.848 North, depth = 112.51 km. Global date and time of event UTC/GMT: 11/10/17 / 2017-10-11 18:45:20 / October 11, 2017 @ 6:45 pm. The earthquake was roughly at a depth of 112.51 km (70 miles).

Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Keelung, Yilan. Close country/countries that might be effected, Taiwan (c. 22 894 000 pop). Event epicenter was 86 km (53 miles) from Keelung (c. 397 500 pop), 80 km (50 miles) from Yilan (c. 94 200 pop).

In the past 24 hours, there have been one, in the last 10 days two, in the past 30 days four and in the last 365 days twenty-eight earthquakes of magnitude 3.0 or greater that have been detected nearby. 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.

Questions or comments?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city 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: 63 km NW of Yonakuni, Japan.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 122.5378° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 24.848° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 112.51 km Depth of the event in kilometers.
Place 63km NW of Yonakuni, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-10-11 18:45:20 Time when the event occurred. UTC/GMT
Updated 2017-10-24 21:57:26 Time when the event was most recently updated. UTC/GMT
Timezone offset 480 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 312 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 0.573 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.64 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 63 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 us1000aqbk Id of event.
Event Code 1000aqbk An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000aqbk, A comma-separated list of event ids that are associated to an event.

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