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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.1 mag strikes near Haveluloto in Tonga

Earthquake location -20.6976S, -177.9871WA light earthquake with magnitude 4.1 (ml/mb) was reported 292 km W of Haveluloto, Tonga (181 miles) on Wednesday. The temblor was reported at 04:02:13 / 4:02 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The epicenter of the earthquake was roughly 505.95 km (314 miles) below the earth’s surface. Event id: us6000c7sd. Ids that are associated to the earthquake: us6000c7sd. Exact location of event, longitude -177.9871 West, latitude -20.6976 South, depth = 505.95 km. Global date and time of event UTC/GMT: 07/10/20 / 2020-10-07 04:02:13 / October 7, 2020 @ 4:02 am.

In the past 24 hours, there have been eight, in the last 10 days eleven, in the past 30 days nineteen and in the last 365 days one hundred and seventy-five earthquakes of magnitude 3.0 or greater that have been detected nearby. 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?

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: 292 km W of Haveluloto, Tonga.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude -177.9871° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -20.6976° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 505.95 km Depth of the event in kilometers.
Place 292 km W of Haveluloto, Tonga Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-10-07 04:02:13 Time when the event occurred. UTC/GMT
Updated 2020-10-30 01:37:24 Time when the event was most recently updated. UTC/GMT
Timezone offset 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 259 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 4.756 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.62 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 101 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 us6000c7sd Id of event.
Event Code 6000c7sd An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000c7sd, A comma-separated list of event ids that are associated to an event.

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