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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4 mag strikes near Hualian in Taiwan



Earthquake location 24.2129S, 121.8828WA light earthquake with magnitude 4 (ml/mb) was detected on Wednesday, 38 kilometers (24 miles) from Hualian in Taiwan. The earthquake occurred at a depth of 24.65 km (15 miles). All ids that are associated to the event: us10003pc0. Unique identifier: us10003pc0. Exact location, longitude 121.8828° East, latitude 24.2129° North, depth = 24.65 km. The 4-magnitude earthquake was detected at 19:32:56 / 7:32 pm (local time epicenter). 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: 23/09/15 / 2015-09-23 11:32:56 / September 23, 2015 @ 11:32 am.

Nearby country/countries, Taiwan (c. 22 894 000 pop) (That might be effected). Nearest cities/city/villages to epicentrum/hypocenter was Yilan, Hualian (min 5000 pop). Epicenter of the event was 39 km (24 miles) from Hualian (c. 350 500 pop), 62 km (38 miles) from Yilan (c. 94 200 pop).

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

Did you feel the quake?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home 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 NE of Hualian, Taiwan.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude 121.8828° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 24.2129° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 24.65 km Depth of the event in kilometers.
Place 38km NE 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 2015-09-23 11:32:56 Time when the event occurred. UTC/GMT
Updated 2015-10-17 11:02:09 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 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 0.265 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.6 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 132 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type ml The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us10003pc0 Id of event.
Event Code 10003pc0 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10003pc0, A comma-separated list of event ids that are associated to an event.

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