Earthquake with magnitude of Mwp 5.5 on date 23-04-2023 and time 11:19:20 (Italy) in region Philippines [Sea]

A magnitude Mwp 5.5 earthquake occured in region: Philippines [Sea], on

  • 23-04-2023 09:19:20 (UTC)
  • 23-04-2023 11:19:20 (UTC +02:00) Italian time
  • 23-04-2023 17:19:20 (UTC +08:00) local time in the region of the earthquake (Asia/Manila)

and geographic coordinates (lat, lon) 17.4300, 122.3070 at 20 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

No Italian municipalities within 100 km from the epicenter with at least 50000 inhabitants.

Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
mb 5.2
Mwp 5.5

Mwpd 5.7
2023-04-23
09:19:20
17.4305 122.307 20 2023-04-23
09:34:33
Sala Sismica INGV-Roma 116637961
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-23 09:19:20
Latitude 17.4305
Longitude 122.3070
Depth (km) 20 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 116637961

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 17153
Semi-minor axis of confidence ellipse (meter) 3839
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 96
Circular confidence region, given by single value of horizontal uncertainty (meter) 14190.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 113.105
Number of associated phases, regardless of their use for origin computation 1
Number of defining phases 1
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.64089
Epicentral distance of station closest to the epicenter (degree)
Epicentral distance of station farthest from the epicenter (degree)
Number of stations at which the event was observed 0
Number of stations from which data was used for origin computation 0
Magnitudes information

Mwp:5.5

Field Value
Value 5.5
Uncertainty 0.1
Num. used stations 10
Type of magnitude Mwp
Reference to an origin 116637961
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2023-04-23 09:34:33

Mwpd:5.7

Field Value
Value 5.7
Uncertainty 0.1
Num. used stations 8
Type of magnitude Mwpd
Reference to an origin 116637961
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2023-04-23 09:34:33

mb:5.2

Field Value
Value 5.2
Uncertainty 0.2
Num. used stations 41
Type of magnitude mb
Reference to an origin 116637961
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2023-04-23 09:34:33
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download