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Light earthquake: M4.2 quake has struck near Hengchun in Taiwan


Earthquake location 21.7177S, 120.9544WA light earthquake magnitude 4.2 (ml/mb) has struck on Saturday, 38 kilometers (24 miles) from Hengchun in Taiwan. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Global time and date of event 17/12/16 / 2016-12-17 05:42:46 / December 17, 2016 @ 5:42 am UTC/GMT. Exact location of event, longitude 120.9544 East, latitude 21.7177 North, depth = 28.59 km. Unique identifier: us10007ppm. Ids that are associated to the event: us10007ppm. The temblor was picked up at 13:42:46 / 1:42 pm (local time epicenter). The epicenter of the earthquake was roughly 28.59 km (18 miles) below the earth’s surface.

Closest city/cities/towns to epicentrum/hypocenter was Hengchun (min 5000 pop). Epicenter of the event was 39 km (24 miles) from Hengchun (c. 31 300 pop). Close country/countries that might be effected, Taiwan (c. 22 894 000 pop).

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 three, in the past 30 days four and in the last 365 days sixteen earthquakes of magnitude 3.0 or greater that have been detected nearby. There are an estimated 13,000 light earthquakes in the world each year.

Did you feel anything?

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 information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 38 km SE of Hengchun, Taiwan.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude 120.9544° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 21.7177° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 28.59 km Depth of the event in kilometers.
Place 38km SE of Hengchun, Taiwan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-12-17 05:42:46 Time when the event occurred. UTC/GMT
Updated 2017-01-12 13:14:07 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 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 1.1 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.04 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 68 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 us10007ppm Id of event.
Event Code 10007ppm An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10007ppm, A comma-separated list of event ids that are associated to an event.

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