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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.2 mag strikes near Santa Ana in Philippines


Earthquake location 18.4195S, 122.6478WA light earthquake with magnitude 4.2 (ml/mb) was reported 53 kilometers (33 miles) from Santa Ana in Philippines on Saturday. Global time and date of event 08/09/17 / 2017-09-08 19:55:20 / September 8, 2017 @ 7:55 pm UTC/GMT. Unique identifier: us2000arse. Ids that are associated to the event: us2000arse. The temblor was picked up at 03:55:20 / 3:55 am (local time epicenter). The epicenter of the earthquake was roughly 10 km (6 miles) below the earth’s surface. Exact location of event, longitude 122.6478 East, latitude 18.4195 North, depth = 10 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Epicenter of the event was 71 km (44 miles) from Gonzaga (c. 7 200 pop), 53 km (33 miles) from Santa Ana (c. 6 300 pop). Close country/countries that might be effected, Philippines (c. 99 900 000 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Gonzaga, Santa Ana.

There are an estimated 13,000 light 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 one and in the last 365 days two earthquakes of magnitude 3.0 or greater that was reported nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

How would you describe the shaking?

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 data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 53 km E of Santa Ana, Philippines.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude 122.6478° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.4195° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 53km E of Santa Ana, Philippines Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-09-08 19:55:20 Time when the event occurred. UTC/GMT
Updated 2017-10-06 17:38:41 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 271 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 4.596 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.98 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 170 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 us2000arse Id of event.
Event Code 2000arse An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000arse, A comma-separated list of event ids that are associated to an event.

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