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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.5 mag, 125 km E of `Ohonua, Tonga

Posted by admin on July 11, 2019 0 Comments

Earthquake location -21.4273S, -173.7396WA light earthquake magnitude 4.5 (ml/mb) has struck on Monday, 125 km E of `Ohonua, Tonga (78 miles). The earthquake occurred at a depth of 10 km (6 miles) below the earth’s surface. Global time and date of event 01/07/19 / 2019-07-01 14:31:44 / July 1, 2019 @ 2:31 pm UTC/GMT. The 4.5-magnitude earthquake was detected at 02:31:44 / 2:31 am (local time epicenter). Exact location of earthquake, longitude -173.7396 West, latitude -21.4273 South, depth = 10 km. Unique identifier: us70004hw4. Ids that are associated to the event: us70004hw4. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

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

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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 125 km E of `Ohonua, Tonga. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -173.7396° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -21.4273° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 125km 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 2019-07-01 14:31:44 Time when the event occurred. UTC/GMT
Updated 2019-07-11 14:01:40 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 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 4.275 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.65 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 114 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 us70004hw4 Id of event.
Event Code 70004hw4 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us70004hw4, A comma-separated list of event ids that are associated to an event.

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