Earthquake with magnitude of ML 1.0 on date 26-07-2023 and time 03:12:19 (Italy) in region 2 km SE Visso (MC)

A magnitude ML 1.0 earthquake occured in region: 2 km SE Visso (MC), on

  • 26-07-2023 01:12:19 (UTC)
  • 26-07-2023 03:12:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9140, 13.1070 at 15 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
Visso MC 3 1107 1107
Castelsantangelo sul Nera MC 4 281 1388
Ussita MC 4 444 1832
Preci PG 7 724 2556
Monte Cavallo MC 12 145 2701
Bolognola MC 13 142 2843
Norcia PG 13 4957 7800
Fiordimonte MC 14 202 8002
Acquacanina MC 14 121 8123
Fiastra MC 14 559 8682
Sellano PG 15 1079 9761
Pieve Torina MC 15 1458 11219
Pievebovigliana MC 17 866 12085
Montemonaco AP 18 604 12689
Cerreto di Spoleto PG 19 1075 13764
Montefortino FM 19 1178 14942
Muccia MC 20 915 15857

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km E of Foligno (57155 inhabitants)
54 Km NE of Terni (111501 inhabitants)
56 Km NW of Teramo (54892 inhabitants)
62 Km E of Perugia (166134 inhabitants)
67 Km NW of L'Aquila (69753 inhabitants)
85 Km SW of Ancona (100861 inhabitants)
96 Km W of Montesilvano (53738 inhabitants)
99 Km NE of Viterbo (67173 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 1.0 2023-07-26
01:12:19
42.9137 13.107 15 2023-07-26
01:16:25
Sala Sismica INGV-Roma 119579981
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-07-26 01:12:19 ± 0.3
Latitude 42.9137 ± 0.0072
Longitude 13.1070 ± 0.0111
Depth (km) 15 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 119579981

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 885
Semi-minor axis of confidence ellipse (meter) 251
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 78
Circular confidence region, given by single value of horizontal uncertainty (meter) 890.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 177
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.08004
Epicentral distance of station farthest from the epicenter (degree) 0.26890
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.0
Num. used stations 2
Type of magnitude ML
Reference to an origin 119579981
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-07-26 01:16:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MF5.EHZ. 2023-07-26T01:12:30.53 0.6 undecidable manual S 74 29.8479 103 0.65 44
IV.CSP1.EHZ. 2023-07-26T01:12:27.50 0.6 undecidable manual S 22 21.2676 112 -0.22 46
IV.MMO1.EHZ. 2023-07-26T01:12:26.49 0.6 undecidable manual S 95 17.9709 118 -0.41 44
IV.MF5.EHZ. 2023-07-26T01:12:25.63 1.0 positive manual P 74 29.8479 103 0.2 24
IV.FDMO.HHZ. 2023-07-26T01:12:25.78 0.6 undecidable manual S 353 13.7751 128 -0.18 48
IV.NRCA.HHZ. 2023-07-26T01:12:24.88 0.6 undecidable manual S 176 8.88 143 -0.17 49
IV.CSP1.EHZ. 2023-07-26T01:12:24.20 0.1 negative manual P 22 21.2676 112 0.02 98
IV.FDMO.HHZ. 2023-07-26T01:12:23.20 0.1 undecidable manual P 353 13.7751 128 0.04 100
IV.MMO1.EHZ. 2023-07-26T01:12:23.62 0.1 undecidable manual P 95 17.9709 118 -0.09 96
IV.NRCA.HHZ. 2023-07-26T01:12:22.81 0.1 positive manual P 176 8.88 143 0.17 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.0 0.0001088 1.56 AML other m 2023-07-26T01:12:25.03
IV.NRCA.HHE. ML:1.0 0.00010515 0.9 AML other m 2023-07-26T01:12:25.11
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