Earthquake with magnitude of ML 0.6 on date 01-12-2020 and time 17:14:23 (UTC) in region 4 km N Proceno (VT)

A magnitude ML 0.6 earthquake occured in region: 4 km N Proceno (VT), on

  • 01-12-2020 17:14:23 (UTC)
  • 01-12-2020 18:14:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7980, 11.8410 at 6 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 4 557 557
Acquapendente VT 6 5506 6063
San Casciano dei Bagni SI 9 1632 7695
Allerona TR 11 1794 9489
Onano VT 12 995 10484
Castell'Azzara GR 12 1476 11960
Radicofani SI 13 1097 13057
Piancastagnaio SI 14 4230 17287
San Lorenzo Nuovo VT 14 2091 19378
Grotte di Castro VT 14 2683 22061
Castel Viscardo TR 14 2938 24999
Castel Giorgio TR 15 2131 27130
Fabro TR 16 2876 30006
Abbadia San Salvatore SI 16 6444 36450
Sorano GR 16 3428 39878
Gradoli VT 17 1353 41231
Latera VT 19 836 42067
Ficulle TR 19 1669 43736
Cetona SI 19 2755 46491

Municipalities with at least 50000 inhabitants

An earthquake occurred to
47 Km NW of Viterbo (67173 inhabitants)
56 Km SW of Perugia (166134 inhabitants)
59 Km E of Grosseto (82087 inhabitants)
71 Km W of Terni (111501 inhabitants)
71 Km SE of Siena (53903 inhabitants)
73 Km W of Foligno (57155 inhabitants)
75 Km S of Arezzo (99543 inhabitants)
78 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 2020-12-01
17:14:23
42.7975 11.8412 6 2021-02-26
14:56:17
Bollettino Sismico Italiano INGV 86656591
Reviewed
Rev100
ML 0.6 2020-12-01
17:14:23
42.8037 11.8345 6 2020-12-01
17:28:09
Sala Sismica INGV-Roma 85131451
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-01 17:14:23 ± 0.16
Latitude 42.7975 ± 0.0126
Longitude 11.8412 ± 0.0061
Depth (km) 6 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86656591

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1207
Semi-minor axis of confidence ellipse (meter) 883
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 346
Circular confidence region, given by single value of horizontal uncertainty (meter) 1210.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 196
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.22933
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.3
Num. used stations 5
Type of magnitude ML
Reference to an origin 86656591
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-28 14:28:58

ML:0.6

Field Value
Value 0.6
Uncertainty 0.3
Num. used stations 9
Type of magnitude ML
Reference to an origin 85131451
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-01 17:28:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MNTV.HNZ. 2020-12-01T17:15:15.46 3.0 undecidable manual Sn -0.02 0
TV.SF01.EHZ. 2020-12-01T17:14:30.77 0.6 undecidable manual S 274 22.6551 104 -0.35 46
TV.SF13.HHZ. 2020-12-01T17:14:29.50 0.6 undecidable manual S 277 18.1707 108 -0.12 49
TV.SF14.HHN. 2020-12-01T17:14:29.46 0.6 undecidable manual S 256 19.0698 107 -0.44 46
IV.ARVD.HHZ. 2020-12-01T17:14:29.85 3.0 undecidable manual P 0 0
IV.MGAB.HNE. 2020-12-01T17:14:28.12 0.3 undecidable manual P 60 25.4523 103 -0.12 73
IV.MCIV.CHZ. 2020-12-01T17:14:28.12 0.6 undecidable manual S 261 13.5753 113 0 51
TV.SF04.EHZ. 2020-12-01T17:14:28.80 0.6 undecidable manual S 286 15.2736 111 0.12 49
TV.SF01.EHZ. 2020-12-01T17:14:27.64 0.3 undecidable manual P 274 22.6551 104 -0.05 74
TV.SF14.HHN. 2020-12-01T17:14:27.03 0.3 undecidable manual P 256 19.0698 107 0.04 75
TV.SF03.EHN. 2020-12-01T17:14:27.85 0.6 undecidable manual S 273 12.6762 114 0.02 51
IV.MCIV.CHZ. 2020-12-01T17:14:26.22 0.3 undecidable manual P 261 13.5753 113 0.26 72
TV.SF03.EHN. 2020-12-01T17:14:26.08 0.1 undecidable manual P 273 12.6762 114 0.28 96
TV.SF04.EHZ. 2020-12-01T17:14:26.45 0.3 undecidable manual P 286 15.2736 111 0.17 73
IV.SACS.HHZ. 2020-12-01T17:14:26.49 0.6 undecidable manual S 44 7.9809 126 0.07 51
TV.SF13.HHZ. 2020-12-01T17:14:26.77 0.3 undecidable manual P 277 18.1707 108 -0.06 75
IV.SACS.HHZ. 2020-12-01T17:14:24.85 0.1 undecidable manual P 44 7.9809 126 -0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MCIV.CHE. ML:0.2 0.00001980609 0.0768 AML other m 2020-12-01T17:14:28.90
TV.SF04.EHE. ML:0.5 0.000037350505 0.2944 AML other m 2020-12-01T17:14:29.94
TV.SF04.EHN. ML:0.6 0.00003910557 1.744 AML other m 2020-12-01T17:14:31.91
TV.SF01.EHE. ML:0.7 0.000037113815000000005 1.0272 AML other m 2020-12-01T17:14:35.34
TV.SF01.EHN. ML:1.1 0.000088092025 0.0672 AML other m 2020-12-01T17:14:39.42
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