Earthquake with magnitude of ML 0.8 on date 26-05-2023 and time 17:08:57 (UTC) in region 5 km W Visso (MC)

A magnitude ML 0.8 earthquake occured in region: 5 km W Visso (MC), on

  • 26-05-2023 17:08:57 (UTC)
  • 26-05-2023 19:08:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9480, 13.0260 at 10 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Monte Cavallo MC 6 145 145
Visso MC 6 1107 1252
Preci PG 8 724 1976
Ussita MC 9 444 2420
Sellano PG 10 1079 3499
Pieve Torina MC 11 1458 4957
Fiordimonte MC 11 202 5159
Castelsantangelo sul Nera MC 12 281 5440
Pievebovigliana MC 14 866 6306
Fiastra MC 15 559 6865
Serravalle di Chienti MC 15 1070 7935
Muccia MC 15 915 8850
Acquacanina MC 15 121 8971
Cerreto di Spoleto PG 17 1075 10046
Bolognola MC 17 142 10188
Norcia PG 18 4957 15145

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km E of Foligno (57155 inhabitants)
53 Km NE of Terni (111501 inhabitants)
55 Km E of Perugia (166134 inhabitants)
64 Km NW of Teramo (54892 inhabitants)
73 Km NW of L'Aquila (69753 inhabitants)
85 Km SW of Ancona (100861 inhabitants)
96 Km NE of Viterbo (67173 inhabitants)
100 Km S of Fano (60888 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
ML 0.8 2023-05-26
17:08:57
42.9478 13.0257 10 2023-05-26
17:18:33
Sala Sismica INGV-Roma 117753311
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-26 17:08:57 ± 0.12
Latitude 42.9478 ± 0.0027
Longitude 13.0257 ± 0.0037
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 117753311

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 346
Semi-minor axis of confidence ellipse (meter) 125
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 60
Circular confidence region, given by single value of horizontal uncertainty (meter) 350.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 153
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.04946
Epicentral distance of station farthest from the epicenter (degree) 0.19425
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 117753311
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-05-26 17:18:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2023-05-26T17:09:05.67 0.3 undecidable manual S 42 21.5673 114 -0.05 73
IV.MML1.HNZ. 2023-05-26T17:09:04.61 0.3 undecidable manual S 347 18.87 117 -0.26 70
IV.NRCA.HHZ. 2023-05-26T17:09:03.46 0.3 undecidable manual S 150 14.5743 124 -0.12 73
IV.CSP1.EHZ. 2023-05-26T17:09:02.24 0.1 undecidable manual P 42 21.5673 114 -0.01 99
IV.CESI.HHZ. 2023-05-26T17:09:02.80 0.1 undecidable manual S 303 11.6772 130 0.02 100
IV.FDMO.HHZ. 2023-05-26T17:09:02.73 0.3 undecidable manual S 27 10.9779 131 0.13 74
IV.NRCA.HHZ. 2023-05-26T17:09:01.00 0.1 undecidable manual P 150 14.5743 124 -0.01 100
IV.MML1.HNZ. 2023-05-26T17:09:01.65 0.3 undecidable manual P 347 18.87 117 -0.11 73
IT.MTCL.HGZ. 2023-05-26T17:09:01.31 0.3 undecidable manual S 337 5.4945 150 -0.07 75
IV.CESI.HHZ. 2023-05-26T17:09:00.62 0.1 undecidable manual P 303 11.6772 130 0.07 99
IV.FDMO.HHZ. 2023-05-26T17:09:00.61 0.1 undecidable manual P 27 10.9779 131 0.16 97
IT.MTCL.HGZ. 2023-05-26T17:08:59.87 0.1 undecidable manual P 337 5.4945 150 0.13 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:0.9 0.00008435 1.8 AML other m 2023-05-26T17:09:03.05
IV.CESI.HHN. ML:1.0 0.0001115 0.1 AML other m 2023-05-26T17:09:03.05
IV.NRCA.HHN. ML:0.6 0.00003925 0.1 AML other m 2023-05-26T17:09:03.84
IV.NRCA.HHE. ML:0.6 0.000038100000000000005 0.1 AML other m 2023-05-26T17:09:03.97
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