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Earthquake breaking news, Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.9 mag strikes near Tatsugō in Japan


Earthquake location 29.1406S, 129.7313WA light earthquake magnitude 4.9 (ml/mb) strikes 77 kilometers (48 miles) from Tatsugō in Japan on Monday. Exact location, longitude 129.7313° East, latitude 29.1406° North, depth = 35 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Unique identifier: us6000qlx3. Ids that are associated to the event: us6000qlx3. Exact time and date of earthquake 23/06/25 / 2025-06-23 07:46:21 / June 23, 2025 @ 7:46 am UTC/GMT. The 4.9-magnitude earthquake has occurred at 07:46:21 / 7:46 am (local time epicenter). The earthquake occurred at a depth of 35 km (22 miles) below the earth’s surface.

Nearby country/countries that might be effected, Japan (c. 127 288 000 pop). Nearest cities/city/towns to hypocenter/epicentrum was Naze (min 5000 pop). Epicenter of the earthquake was 89 km (56 miles) from Naze (c. 41 400 pop).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been seven, in the last 10 days fifteen, in the past 30 days seventeen and in the last 365 days fifty-three earthquakes of magnitude 3.0 or greater that have been detected in the same area. There are an estimated 13,000 light earthquakes in the world each year.

Did you feel anything?

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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 77 km N of Tatsugō, Japan. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.9 mb The magnitude for the event.
Longitude 129.7313° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 29.1406° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 35 km Depth of the event in kilometers.
Place 77 km N of Tatsugō, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-06-23 07:46:21 Time when the event occurred. UTC/GMT
Updated 2025-06-23 08:34:00 Time when the event was most recently updated. UTC/GMT
Timezone offset 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 369 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 80 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 2.442 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.17 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 93 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 us6000qlx3 Id of event.
Event Code 6000qlx3 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000qlx3, A comma-separated list of event ids that are associated to an event.

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