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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.6 mag has occurred near Pangai in Tonga


Earthquake location -19.8031S, -174.8967WA light earthquake magnitude 4.6 (ml/mb) has struck on Thursday, 57 kilometers (35 miles) from Pangai in Tonga. Id of earthquake: us2000ck4g. Event ids that are associated: us2000ck4g. The earthquake occurred at a depth of 51.7 km (32 miles). Date and time of earthquake in UTC/GMT: 10/01/18 / 2018-01-10 18:41:53 / January 10, 2018 @ 6:41 pm. The temblor was detected at 07:41:53 / 7:41 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude -174.8967 West, latitude -19.8031 South, depth = 51.7 km.

Nearest cities/city/villages to epicentrum/hypocenter was Pangai (min 5000 pop). Country/countries that might be effected, Tonga (c. 123 000 pop). Epicenter of the event was 57 km (35 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 five and in the last 365 days twenty-six earthquakes of magnitude 3.0 or greater that has struck near. 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.

How would you describe the shaking?

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 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: 57 km W of Pangai, Tonga.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude -174.8967° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -19.8031° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 51.7 km Depth of the event in kilometers.
Place 57km W 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 2018-01-10 18:41:53 Time when the event occurred. UTC/GMT
Updated 2018-01-16 20:34:26 Time when the event was most recently updated. UTC/GMT
Timezone offset 780 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 326 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 4.744 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.08 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 116 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 us2000ck4g Id of event.
Event Code 2000ck4g An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000ck4g, A comma-separated list of event ids that are associated to an event.

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