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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.8 mag strikes near Vaini in Tonga


Earthquake location -22.1941S, -175.7171WA light earthquake magnitude 4.8 (ml/mb) has struck on Tuesday, 122 km SSW of Vaini, Tonga (76 miles). Exact time and date of earthquake 27/11/18 / 2018-11-27 22:27:11 / November 27, 2018 @ 10:27 pm UTC/GMT. Exact location of event, longitude -175.7171 West, latitude -22.1941 South, depth = 96.12 km. The 4.8-magnitude earthquake was detected at 10:27:11 / 10:27 am (local time epicenter). All ids that are associated to the event: us1000hyep. Unique identifier: us1000hyep. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake occurred at a depth of 96.12 km (60 miles) below the earth’s surface.

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. In the past 24 hours, there have been three, in the last 10 days four, in the past 30 days five and in the last 365 days nineteen earthquakes of magnitude 3.0 or greater that was reported nearby.

Did you feel the quake?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 122 km SSW of Vaini, Tonga. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.8 mb The magnitude for the event.
Longitude -175.7171° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -22.1941° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 96.12 km Depth of the event in kilometers.
Place 122km SSW of Vaini, Tonga Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-11-27 22:27:11 Time when the event occurred. UTC/GMT
Updated 2018-12-07 03:36:02 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 354 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 7.342 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.09 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 126 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 us1000hyep Id of event.
Event Code 1000hyep An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000hyep, A comma-separated list of event ids that are associated to an event.

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