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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.7 mag was detected near Hihifo in Tonga

Posted by admin on June 19, 2019 0 Comments

Earthquake location -15.106S, -174.0669WA light earthquake with magnitude 4.7 (ml/mb) was detected on Wednesday, 99 kilometers (62 miles) from Hihifo in Tonga. The earthquake was roughly at a depth of 10 km (6 miles). Date and time of earthquake in UTC/GMT: 12/06/19 / 2019-06-12 21:41:55 / June 12, 2019 @ 9:41 pm. Exact location of earthquake, -174.0669° West, -15.106° South, depth 10 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Id of earthquake: us600042is. Event ids that are associated: us600042is. The 4.7-magnitude earthquake has occurred at 09:41:55 / 9:41 am (local time epicenter).

Event epicenter was 99 km (61 miles) from Hihifo (c. 800 pop). Nearby country/countries that might be effected, Tonga (c. 123 000 pop). 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. Each year there are an estimated 13,000 light earthquakes in the world. In the past 24 hours, there have been three, in the last 10 days five, in the past 30 days six and in the last 365 days fifty-two earthquakes of magnitude 3.0 or greater that has struck near.

Questions or comments?

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 information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 99 km NNW of Hihifo, Tonga.

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More information

Parameter Value Description
Magnitude 4.7 mb The magnitude for the event.
Longitude -174.0669° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -15.106° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 99km 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 2019-06-12 21:41:55 Time when the event occurred. UTC/GMT
Updated 2019-06-19 05:04:20 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 340 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 2.516 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.9 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 73 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 us600042is Id of event.
Event Code 600042is An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us600042is, A comma-separated list of event ids that are associated to an event.

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