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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.4 mag strikes near Pangai in Tonga

Posted by admin on December 6, 2017 0 Comments

Earthquake location -19.3874S, -175.1032WA light earthquake with magnitude 4.4 (ml/mb) was detected on Wednesday, 91 kilometers (57 miles) from Pangai in Tonga. Global date and time of event UTC/GMT: 22/11/17 / 2017-11-22 16:01:25 / November 22, 2017 @ 4:01 pm. The temblor was picked up at 04:01:25 / 4:01 am (local time epicenter). Exact location of event, longitude -175.1032 West, latitude -19.3874 South, depth = 195.7 km. Event ids that are associated to the earthquake: us1000bjgf. Id of event: us1000bjgf. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The epicenter was at a depth of 195.7 km (122 miles).

Nearest cities/city/towns to hypocenter/epicentrum was Pangai (min 5000 pop). Nearby country/countries, Tonga (c. 123 000 pop) (That might be effected). Epicenter of the event was 92 km (57 miles) from Pangai (c. 1 700 pop).

In the past 24 hours, there have been one, in the last 10 days two, in the past 30 days three and in the last 365 days twenty-six earthquakes of magnitude 3.0 or greater that have been detected in the same area. 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.

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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 91 km WNW of Pangai, Tonga.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude -175.1032° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -19.3874° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 195.7 km Depth of the event in kilometers.
Place 91km WNW of Pangai, Tonga Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-11-22 16:01:25 Time when the event occurred. UTC/GMT
Updated 2017-12-06 02:11:36 Time when the event was most recently updated. UTC/GMT
Timezone offset -720 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 298 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 4.9 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.2 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 93 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 us1000bjgf Id of event.
Event Code 1000bjgf An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000bjgf, A comma-separated list of event ids that are associated to an event.

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