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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.5 quake has struck near Hihifo in Tonga


Earthquake location -15.3983S, -173.9109WA light earthquake magnitude 4.5 (ml/mb) has occurred on Tuesday, 62 kilometers (39 miles) from Hihifo in Tonga. Event ids that are associated to the earthquake: us6000bg1f. Id of event: us6000bg1f. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, longitude -173.9109 West, latitude -15.3983 South, depth = 103.58 km. Exact time and date of event in UTC/GMT: 11/08/20 / 2020-08-11 14:08:35 / August 11, 2020 @ 2:08 pm. The 4.5-magnitude earthquake has occurred at 14:08:35 / 2:08 pm (local time epicenter). The earthquake occurred at a depth of 103.58 km (64 miles) below the earth’s surface.

Epicenter of the event was 63 km (39 miles) from Hihifo (c. 800 pop). Nearby country/countries, Tonga (c. 123 000 pop) (That might be effected). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Hihifo.

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been four, in the last 10 days four, in the past 30 days ten and in the last 365 days seventy-four earthquakes of magnitude 3.0 or greater that was reported nearby. Each year there are an estimated 13,000 light earthquakes in the world.

How would you describe the shaking?

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. 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: 62 km NNW of Hihifo, Tonga.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -173.9109° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -15.3983° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 103.58 km Depth of the event in kilometers.
Place 62 km NNW 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 2020-08-11 14:08:35 Time when the event occurred. UTC/GMT
Updated 2020-08-18 14:12:04 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 312 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 2.537 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.47 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 58 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 us6000bg1f Id of event.
Event Code 6000bg1f An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000bg1f, A comma-separated list of event ids that are associated to an event.

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