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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4 mag has occurred near Yilan in Taiwan

Earthquake location 24.9196S, 122.2869WA light earthquake with magnitude 4 (ml/mb) was reported 56 kilometers (35 miles) from Yilan in Taiwan on Wednesday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Event id: us2000d0wi. Ids that are associated to the earthquake: us2000d0wi. Exact time and date of earthquake 31/01/18 / 2018-01-31 13:22:05 / January 31, 2018 @ 1:22 pm UTC/GMT. The earthquake occurred at a depth of 146.15 km (91 miles) below the earth’s surface. The temblor was picked up at 21:22:05 / 9:22 pm (local time epicenter). Exact location, longitude 122.2869° East, latitude 24.9196° North, depth = 146.15 km.

Nearby country/countries, Taiwan (c. 22 894 000 pop) (That might be effected). Epicenter of the event was 77 km (48 miles) from Taipei (c. 7 871 900 pop), 83 km (52 miles) from Banqiao (c. 543 300 pop), 60 km (37 miles) from Keelung (c. 397 500 pop), 57 km (35 miles) from Yilan (c. 94 200 pop). Closest city/cities/towns to epicentrum/hypocenter was Banqiao, Taipei, Keelung (min 5000 pop).

There are an estimated 13,000 light earthquakes in the world each year. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been twenty-four, in the last 10 days twenty-four, in the past 30 days twenty-five and in the last 365 days fourty-eight earthquakes of magnitude 3.0 or greater that has occurred nearby.

Questions or comments?

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: 56 km ENE of Yilan, Taiwan.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude 122.2869° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 24.9196° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 146.15 km Depth of the event in kilometers.
Place 56km ENE of Yilan, Taiwan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-01-31 13:22:05 Time when the event occurred. UTC/GMT
Updated 2018-02-15 12:59:13 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 246 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 0.719 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.89 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 55 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 us2000d0wi Id of event.
Event Code 2000d0wi An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000d0wi, A comma-separated list of event ids that are associated to an event.

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