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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.8 mag, 86 km SSW of Hihifo, Tonga


Earthquake location -16.6972S, -173.9722WA light earthquake magnitude 4.8 (ml/mb) has struck on Saturday, 86 kilometers (53 miles) from Hihifo in Tonga. The temblor was detected at 18:26:26 / 6:26 pm (local time epicenter). The epicenter of the earthquake was roughly 87.3 km (54 miles) below the earth’s surface. All ids that are associated to the event: us70005ude. Unique identifier: us70005ude. Exact location, longitude -173.9722° West, latitude -16.6972° South, depth = 87.3 km. Global time and date of event 06/10/19 / 2019-10-06 06:26:26 / October 6, 2019 @ 6:26 am UTC/GMT. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Hihifo. Earthquake epicenter was 85 km (53 miles) from Hihifo (c. 800 pop). Nearby country/countries, Tonga (c. 123 000 pop) (That might be effected).

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 fourty-one earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Every year there are an estimated 13,000 light earthquakes in the world.

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. 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: 86 km SSW of Hihifo, Tonga.

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More information

Parameter Value Description
Magnitude 4.8 mb The magnitude for the event.
Longitude -173.9722° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -16.6972° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 87.3 km Depth of the event in kilometers.
Place 86km SSW of Hihifo, Tonga Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2019-10-06 06:26:26 Time when the event occurred. UTC/GMT
Updated 2019-11-01 08:07:49 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 3.488 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.92 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 84 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 us70005ude Id of event.
Event Code 70005ude An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us70005ude, A comma-separated list of event ids that are associated to an event.

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