Earthquake with magnitude of ML 0.6 on date 24-02-2023 and time 12:29:56 (Italy) in region 7 km NW Proceno (VT)

A magnitude ML 0.6 earthquake occured in region: 7 km NW Proceno (VT), on

  • 24-02-2023 11:29:56 (UTC)
  • 24-02-2023 12:29:56 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8160, 11.7890 at 5 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Proceno VT 7 557 557
Piancastagnaio SI 9 4230 4787
Castell'Azzara GR 9 1476 6263
Radicofani SI 9 1097 7360
San Casciano dei Bagni SI 10 1632 8992
Acquapendente VT 10 5506 14498
Abbadia San Salvatore SI 12 6444 20942
Onano VT 14 995 21937
Allerona TR 15 1794 23731
Sorano GR 16 3428 27159
Santa Fiora GR 17 2622 29781
Grotte di Castro VT 17 2683 32464
San Lorenzo Nuovo VT 17 2091 34555
Castel Viscardo TR 19 2938 37493
Cetona SI 19 2755 40248
Fabro TR 19 2876 43124
Castel Giorgio TR 20 2131 45255
Gradoli VT 20 1353 46608

Municipalities with at least 50000 inhabitants

An earthquake occurred to
51 Km NW of Viterbo (67173 inhabitants)
55 Km E of Grosseto (82087 inhabitants)
59 Km SW of Perugia (166134 inhabitants)
67 Km SE of Siena (53903 inhabitants)
73 Km S of Arezzo (99543 inhabitants)
76 Km W of Terni (111501 inhabitants)
76 Km W of Foligno (57155 inhabitants)
80 Km N of Civitavecchia (52991 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
Bulletin
Rev1000
ML 0.6 2023-02-24
11:29:56
42.8163 11.7887 5 2024-03-01
17:17:59
Bollettino Sismico Italiano INGV 115427281
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-24 11:29:56 ± 0.08
Latitude 42.8163 ± 0.0054
Longitude 11.7887 ± 0.0049
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 115427281

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 610
Semi-minor axis of confidence ellipse (meter) 370
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 350
Circular confidence region, given by single value of horizontal uncertainty (meter) 610.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 125
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) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.09083
Epicentral distance of station farthest from the epicenter (degree) 0.25541
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:0.6

Field Value
Value 0.6
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 115427281
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-03-16 10:29:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARCI.HHZ. 2023-02-24T11:30:05.50 0.6 undecidable manual S 279 25.752 101 0.21 48
IV.MGAB.HHZ. 2023-02-24T11:30:05.91 0.6 undecidable manual S 68 28.3494 100 -0.27 47
IV.LATE.HHN. 2023-02-24T11:30:04.41 0.6 undecidable manual S 177 22.5552 102 0.23 48
IV.MGAB.HHZ. 2023-02-24T11:30:02.43 0.3 undecidable manual P 68 28.3494 100 0.48 68
IV.ARCI.HHZ. 2023-02-24T11:30:01.64 0.3 undecidable manual P 279 25.752 101 0.2 72
TV.SF11.HHZ. 2023-02-24T11:30:00.17 0.6 undecidable manual S 303 10.6782 115 -0.08 51
IV.SACS.HHZ. 2023-02-24T11:30:00.10 0.6 undecidable manual S 70 10.4784 115 -0.11 50
IV.LATE.HHN. 2023-02-24T11:30:00.82 0.6 undecidable manual P 177 22.5552 102 0.02 50
IV.MCIV.CHZ. 2023-02-24T11:29:59.84 0.6 undecidable manual S 245 10.0788 116 -0.23 49
IV.MCIV.CHZ. 2023-02-24T11:29:58.11 0.1 undecidable manual P 245 10.0788 116 -0.31 96
TV.SF11.HHZ. 2023-02-24T11:29:58.62 0.3 undecidable manual P 303 10.6782 115 0.09 76
IV.SACS.HHZ. 2023-02-24T11:29:58.37 0.1 undecidable manual P 70 10.4784 115 -0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SACS.HHE. ML:0.4 0.00004545 1.22 AML other m 2023-02-24T11:30:00.70
IV.SACS.HHN. ML:0.5 0.0000546 0.26 AML other m 2023-02-24T11:30:02.97
IV.MCIV.CHE. ML:0.6 0.0000731864 0.2112 AML other m 2023-02-24T11:30:00.01
IV.MCIV.CHN. ML:0.6 0.000059692629999999994 0.2432 AML other m 2023-02-24T11:30:00.46
IV.MGAB.HHE. ML:0.6 0.000022415650000000003 0.3584 AML other m 2023-02-24T11:30:08.27
IV.MGAB.HHN. ML:0.6 0.00002003468 0.1408 AML other m 2023-02-24T11:30:06.96
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