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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.5 mag was detected near San Isidro in Philippines


Earthquake location 10.2973S, 126.7846WA light earthquake with magnitude 4.5 (ml/mb) was reported 83 km ENE of San Isidro, Philippines (52 miles) on Thursday. Unique identifier: us2000a0vb. Ids that are associated to the event: us2000a0vb. The epicenter of the earthquake was roughly 51.17 km (32 miles) below the earth’s surface. Global date and time of event UTC/GMT: 20/07/17 / 2017-07-20 07:23:18 / July 20, 2017 @ 7:23 am. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, longitude 126.7846 East, latitude 10.2973 North, depth = 51.17 km. The temblor was picked up at 15:23:18 / 3:23 pm (local time epicenter).

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 thirty-five earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. There are an estimated 13,000 light quakes in the world each year.

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: 83 km ENE of San Isidro, Philippines.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 126.7846° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 10.2973° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 51.17 km Depth of the event in kilometers.
Place 83km ENE of San Isidro, Philippines Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-07-20 07:23:18 Time when the event occurred. UTC/GMT
Updated 2017-08-06 07:07:22 Time when the event was most recently updated. UTC/GMT
Timezone offset 480 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 3.421 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.69 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 135 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 us2000a0vb Id of event.
Event Code 2000a0vb An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000a0vb, A comma-separated list of event ids that are associated to an event.

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