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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.2 mag has occurred near Nafpaktos in Greece

Earthquake location 38.4021S, 21.8029WA light earthquake with magnitude 4.2 (ml/mb) was reported 2 kilometers (1 miles) from Nafpaktos in Greece on Saturday. Exact location of earthquake, 21.8029° East, 38.4021° North, depth 42.41 km. Unique identifier: us1000gc2x. Ids that are associated to the event: us1000gc2x. The earthquake occurred at a depth of 42.41 km (26 miles) below the earth’s surface. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of earthquake 18/08/18 / 2018-08-18 03:26:54 / August 18, 2018 @ 3:26 am UTC/GMT. The 4.2-magnitude earthquake has occurred at 05:26:54 / 5:26 am (local time epicenter).

Event epicenter was 19 km (12 miles) from Pátra (c. 163 400 pop), 78 km (48 miles) from Lamía (c. 52 000 pop), 42 km (26 miles) from Agrínio (c. 46 900 pop), 87 km (54 miles) from Pýrgos (c. 22 400 pop), 30 km (18 miles) from Aígio (c. 20 700 pop), 78 km (48 miles) from Amaliáda (c. 19 600 pop). Nearby country/countries that might be effected, Greece (c. 11 000 000 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Pýrgos, Xylókastro, Gastoúni.

In the past 24 hours, there have been four, in the last 10 days four, in the past 30 days five and in the last 365 days eighteen 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.

Did you feel anything?

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: 2 km WNW of Nafpaktos, Greece.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude 21.8029° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 38.4021° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 42.41 km Depth of the event in kilometers.
Place 2km WNW of Nafpaktos, Greece Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-08-18 03:26:54 Time when the event occurred. UTC/GMT
Updated 2018-09-02 04:30:32 Time when the event was most recently updated. UTC/GMT
Timezone offset 120 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 2.038 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.62 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 80 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 us1000gc2x Id of event.
Event Code 1000gc2x An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000gc2x, A comma-separated list of event ids that are associated to an event.

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