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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.1 mag has occurred near Taitung City in Taiwan


Earthquake location 22.5015S, 121.1151WA light earthquake magnitude 4.1 (ml/mb) has struck on Wednesday, 28 kilometers (17 miles) from Taitung City in Taiwan. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Global date and time of event UTC/GMT: 21/10/15 / 2015-10-21 01:14:31 / October 21, 2015 @ 1:14 am. Exact location of event, longitude 121.1151 East, latitude 22.5015 North, depth = 5.52 km. The temblor was picked up at 09:14:31 / 9:14 am (local time epicenter). The epicenter was at a depth of 5.52 km (3 miles). Event id: us10003rx2. Ids that are associated to the earthquake: us10003rx2.

Closest city/cities/towns to epicentrum/hypocenter was Kaohsiung, Hengchun, Taitung City (min 5000 pop). The epicenter was 83 km (52 miles) from Kaohsiung (c. 1 519 700 pop), 29 km (18 miles) from Taitung City (c. 109 600 pop), 67 km (42 miles) from Hengchun (c. 31 300 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 two, in the last 10 days three, in the past 30 days four and in the last 365 days thirteen 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.

How would you describe the shaking?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 28 km S of Taitung City, Taiwan.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude 121.1151° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 22.5015° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 5.52 km Depth of the event in kilometers.
Place 28km S of Taitung City, Taiwan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-10-21 01:14:31 Time when the event occurred. UTC/GMT
Updated 2015-11-18 03:02:18 Time when the event was most recently updated. UTC/GMT
Timezone offset 480 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 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 0.316 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.48 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 117 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 us10003rx2 Id of event.
Event Code 10003rx2 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10003rx2, A comma-separated list of event ids that are associated to an event.

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