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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.3 quake has struck near Yonakuni in Japan

Earthquake location 24.3699S, 122.4365WA light earthquake with magnitude 4.3 (ml/mb) was reported 58 kilometers (36 miles) from Yonakuni in Japan on Friday. All ids that are associated to the event: us1000ds2v. Unique identifier: us1000ds2v. Exact time and date of event in UTC/GMT: 20/04/18 / 2018-04-20 05:25:06 / April 20, 2018 @ 5:25 am. The earthquake occurred at a depth of 68.78 km (43 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, 122.4365° East, 24.3699° North, depth 68.78 km. The temblor was detected at 13:25:06 / 1:25 pm (local time epicenter).

Nearest cities/city/villages to epicentrum/hypocenter was Yilan (min 5000 pop). Event epicenter was 81 km (51 miles) from Yilan (c. 94 200 pop). Close country/countries that might be effected, Taiwan (c. 22 894 000 pop).

There are an estimated 13,000 light earthquakes in the world each year. In the past 24 hours, there have been three, in the last 10 days three, in the past 30 days four and in the last 365 days eighty-one 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.

Did you feel anything?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 58 km W of Yonakuni, Japan. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude 122.4365° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 24.3699° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 68.78 km Depth of the event in kilometers.
Place 58km W 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 2018-04-20 05:25:06 Time when the event occurred. UTC/GMT
Updated 2018-05-02 07:50:42 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 284 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 0.532 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 53 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 us1000ds2v Id of event.
Event Code 1000ds2v An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000ds2v, A comma-separated list of event ids that are associated to an event.

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