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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.2 mag, 4 km SSE of Hualian, Taiwan


Earthquake location 23.9423S, 121.6245WA light earthquake with magnitude 4.2 (ml/mb) was reported 4 kilometers (2 miles) from Hualian in Taiwan on Wednesday. Exact location of earthquake, longitude 121.6245 East, latitude 23.9423 North, depth = 7.96 km. The epicenter was at a depth of 7.96 km (5 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was reported at 05:02:49 / 5:02 am (local time epicenter). Unique identifier: us2000d39n. Ids that are associated to the event: us2000d39n. Date and time of earthquake in UTC/GMT: 06/02/18 / 2018-02-06 21:02:49 / February 6, 2018 @ 9:02 pm.

Country/countries that might be effected, Taiwan (c. 22 894 000 pop). Earthquake epicenter was 4 km (3 miles) from Hualian (c. 350 500 pop), 92 km (57 miles) from Yilan (c. 94 200 pop), 67 km (41 miles) from Puli (c. 86 400 pop), 91 km (57 miles) from Lugu (c. 19 600 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Yilan, Lugu, Puli.

In the past 24 hours, there have been thirty-one, in the last 10 days fourty-four, in the past 30 days fourty-four and in the last 365 days sixty-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 earthquakes in the world each year.

How would you describe the shaking?

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. 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: 4 km SSE of Hualian, Taiwan.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude 121.6245° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 23.9423° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 7.96 km Depth of the event in kilometers.
Place 4km SSE of Hualian, Taiwan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-02-06 21:02:49 Time when the event occurred. UTC/GMT
Updated 2018-02-24 05:41:37 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 0.232 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.65 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 96 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 us2000d39n Id of event.
Event Code 2000d39n An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000d39n, A comma-separated list of event ids that are associated to an event.

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