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Earthquake breaking news, Moderate World Earthquakes Magnitude 5–5.9

Moderate earthquake, 5.4 mag has occurred near `Ohonua in Tonga


Earthquake location -21.1895S, -174.1268WA moderate earthquake with magnitude 5.4 (ml/mb) was reported 86 kilometers (53 miles) from `Ohonua in Tonga on Friday. The 5.4-magnitude earthquake was detected at 05:45:50 / 5:45 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, depth 6.68 km, -174.1268° West, -21.1895° South. Exact time and date of event in UTC/GMT: 09/08/19 / 2019-08-09 17:45:50 / August 9, 2019 @ 5:45 pm. The earthquake occurred at a depth of 6.68 km (4 miles) below the earth’s surface. Event id: us600052zu. Ids that are associated to the earthquake: us600052zu.

Close country/countries that might be effected, Tonga (c. 123 000 pop). Closest city/cities/towns to epicentrum/hypocenter was ‘Ohonua (min 5000 pop). Event epicenter was 87 km (54 miles) from ‘Ohonua (c. 1 200 pop).

Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures. There are an estimated 1320 moderate quakes in the world each year. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days three and in the last 365 days fourty-five earthquakes of magnitude 3.0 or greater that has struck near.

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 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: 86 km E of `Ohonua, Tonga.

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More information

Parameter Value Description
Magnitude 5.4 mb The magnitude for the event.
Longitude -174.1268° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -21.1895° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 6.68 km Depth of the event in kilometers.
Place 86km E of `Ohonua, Tonga Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2019-08-09 17:45:50 Time when the event occurred. UTC/GMT
Updated 2019-08-09 18:05:41 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 3.285 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 449 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 7.578 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 49 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 us600052zu Id of event.
Event Code 600052zu An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us600052zu, A comma-separated list of event ids that are associated to an event.

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