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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.5 mag was detected near Lugu in Taiwan

Earthquake location 23.5643S, 120.7181WA light earthquake magnitude 4.5 (ml/mb) strikes 20 kilometers (12 miles) from Lugu in Taiwan on Friday. The temblor was reported at 04:55:32 / 4:55 am (local time epicenter). Event id: us1000bjtr. Ids that are associated to the earthquake: us1000bjtr. The earthquake occurred at a depth of 17.09 km (11 miles). Exact location, longitude 120.7181° East, latitude 23.5643° North, depth = 17.09 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of event in UTC/GMT: 23/11/17 / 2017-11-23 20:55:32 / November 23, 2017 @ 8:55 pm.

Earthquake epicenter was 65 km (40 miles) from Taichung (c. 1 040 700 pop), 82 km (51 miles) from Tainan (c. 771 200 pop), 39 km (25 miles) from Nantou (c. 105 700 pop), 24 km (15 miles) from Douliu (c. 104 700 pop), 52 km (32 miles) from Puli (c. 86 400 pop), 44 km (27 miles) from Zhongxing New Village (c. 25 500 pop), 21 km (13 miles) from Lugu (c. 19 600 pop). Closest city/cities/towns to epicentrum/hypocenter was Tainan, Taichung, Yujing (min 5000 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 two, in the past 30 days seven and in the last 365 days twenty earthquakes of magnitude 3.0 or greater that was reported nearby. There are an estimated 13,000 light quakes in the world each year.

Did you feel the quake?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 20 km S of Lugu, Taiwan.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 120.7181° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 23.5643° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 17.09 km Depth of the event in kilometers.
Place 20km S of Lugu, Taiwan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-11-23 20:55:32 Time when the event occurred. UTC/GMT
Updated 2017-12-19 16:27:08 Time when the event was most recently updated. UTC/GMT
Timezone offset 480 Timezone offset from UTC in minutes at the event epicenter.
Felt 2 The total number of felt reports
CDI 3.4 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 0.274 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.88 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 62 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 us1000bjtr Id of event.
Event Code 1000bjtr An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000bjtr, A comma-separated list of event ids that are associated to an event.

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