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Earthquake breaking news, Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.9 quake has struck near Saiki in Japan


Earthquake location 32.7615S, 132.1441WA light earthquake with magnitude 4.9 (ml/mb) was detected on Monday, 30 kilometers (19 miles) from Saiki in Japan. The temblor was picked up at 03:31:36 / 3:31 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, depth 47.78 km, 132.1441° East, 32.7615° North. All ids that are associated to the event: us2000d4a3. Unique identifier: us2000d4a3. The earthquake was roughly at a depth of 47.78 km (30 miles). Exact time and date of event in UTC/GMT: 18/02/18 / 2018-02-18 18:31:36 / February 18, 2018 @ 6:31 pm.

Close country/countries that might be effected, Japan (c. 127 288 000 pop). Event epicenter was 73 km (45 miles) from Ōita (c. 448 900 pop), 83 km (52 miles) from Beppu (c. 125 100 pop), 49 km (30 miles) from Nobeoka (c. 121 900 pop), 68 km (42 miles) from Tsurusaki (c. 77 000 pop), 64 km (40 miles) from Uwajima (c. 59 000 pop), 31 km (19 miles) from Saiki (c. 49 100 pop), 90 km (56 miles) from Ōzu (c. 38 800 pop). Closest city/cities/towns to epicentrum/hypocenter was Tsuma, Aso, Takanabe (min 5000 pop).

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

How would you describe the shaking?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 30 km SE of Saiki, Japan.

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More information

Parameter Value Description
Magnitude 4.9 mb The magnitude for the event.
Longitude 132.1441° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 32.7615° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 47.78 km Depth of the event in kilometers.
Place 30km SE of Saiki, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-02-18 18:31:36 Time when the event occurred. UTC/GMT
Updated 2018-02-18 18:49:01 Time when the event was most recently updated. UTC/GMT
Timezone offset 540 Timezone offset from UTC in minutes at the event epicenter.
Felt 4 The total number of felt reports
CDI 3.8 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 371 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 1.125 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.14 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 60 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mww The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us2000d4a3 Id of event.
Event Code 2000d4a3 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000d4a3, A comma-separated list of event ids that are associated to an event.

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