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Moderate earthquake: M5.1 quake has struck near Hihifo in Tonga

Posted by admin on May 18, 2018 0 Comments

Earthquake location -15.4607S, -172.6986WA moderate earthquake magnitude 5.1 (ml/mb) has struck on Thursday, 125 km ENE of Hihifo, Tonga (78 miles). The earthquake was roughly at a depth of 10 km (6 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Date and time of earthquake in UTC/GMT: 18/05/18 / 2018-05-18 06:37:01 / May 18, 2018 @ 6:37 am. Id of earthquake: us1000e7uq. Event ids that are associated: us1000e7uq. The 5.1-magnitude earthquake has occurred at 18:37:01 / 6:37 pm (local time epicenter). Exact location, longitude -172.6986° West, latitude -15.4607° South, depth = 10 km.

In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days two and in the last 365 days sixty-seven earthquakes of magnitude 3.0 or greater that have been detected nearby. 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.

Did you feel the quake?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. 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: 125 km ENE of Hihifo, Tonga.

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More information

Parameter Value Description
Magnitude 5.1 mb The magnitude for the event.
Longitude -172.6986° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -15.4607° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 125km ENE 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 2018-05-18 06:37:01 Time when the event occurred. UTC/GMT
Updated 2018-05-18 06:56:23 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 400 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 1.781 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.16 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 129 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 us1000e7uq Id of event.
Event Code 1000e7uq An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000e7uq, A comma-separated list of event ids that are associated to an event.

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