Earthquake with magnitude of ML 0.4 on date 23-06-2020 and time 23:12:02 (Italy) in region 1 km N Proceno (VT)

A magnitude ML 0.4 earthquake occured in region: 1 km N Proceno (VT), on

  • 23-06-2020 21:12:02 (UTC)
  • 23-06-2020 23:12:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.77, 11.83 at 7 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
Proceno VT 1 557 557
Acquapendente VT 4 5506 6063
Onano VT 9 995 7058
Castell'Azzara GR 11 1476 8534
Grotte di Castro VT 11 2683 11217
San Lorenzo Nuovo VT 11 2091 13308
San Casciano dei Bagni SI 12 1632 14940
Allerona TR 13 1794 16734
Sorano GR 14 3428 20162
Gradoli VT 14 1353 21515
Castel Viscardo TR 14 2938 24453
Castel Giorgio TR 14 2131 26584
Piancastagnaio SI 14 4230 30814
Radicofani SI 15 1097 31911
Latera VT 16 836 32747
Abbadia San Salvatore SI 17 6444 39191
Fabro TR 18 2876 42067
Bolsena VT 19 3991 46058
Pitigliano GR 20 3818 49876

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km NW of Viterbo (67173 inhabitants)
58 Km E of Grosseto (82087 inhabitants)
59 Km SW of Perugia (166134 inhabitants)
71 Km W of Terni (111501 inhabitants)
73 Km SE of Siena (53903 inhabitants)
74 Km W of Foligno (57155 inhabitants)
75 Km N of Civitavecchia (52991 inhabitants)
78 Km S of Arezzo (99543 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 0.4 2020-06-23
21:12:02
42.77 11.83 7 2020-06-24
15:00:11
Sala Sismica INGV-Roma 80471681
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-06-23 21:12:02 ± 0.12
Latitude 42.77 ± 0.00
Longitude 11.83 ± 0.00
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 80471681

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 389
Semi-minor axis of confidence ellipse (meter) 98
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 168
Circular confidence region, given by single value of horizontal uncertainty (meter) 390
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 131
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.2716
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 10
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 80471681
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-06-24 15:00:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
AC.VLO.HHZ. 2020-06-23T21:13:29.70 3.0 positive manual Pg 17.93 0
XK.GIZZ.HHZ. 2020-06-23T21:12:56.04 3.0 undecidable manual Pn 2.44 0
IV.LMD.HHZ. 2020-06-23T21:12:53.00 3.0 undecidable manual Sg 8.58 0
IV.SCIAR.HHZ. 2020-06-23T21:12:48.14 3.0 positive manual Pn -5.21 0
GU.GSCL.HHZ. 2020-06-23T21:12:38.76 3.0 negative manual Pg 11.72 0
IV.FIR.HHZ. 2020-06-23T21:12:37.79 3.0 undecidable manual Sn -2.23 0
IV.PTRJ.HNZ. 2020-06-23T21:12:36.85 3.0 undecidable manual Sn -7.71 0
IV.MCRV.HHZ. 2020-06-23T21:12:27.35 3.0 undecidable manual Pn -2.02 0
IV.NARO.HHZ. 2020-06-23T21:12:16.50 3.0 positive manual Pg 2.65 0
IV.ARCI.HNE. 2020-06-23T21:12:12.99 0.6 undecidable manual S 287 0.2716 103 -0.23 47
IV.MGAB.HHZ. 2020-06-23T21:12:12.53 0.6 undecidable manual S 56 0.2509 104 0.07 48
IV.MNTT.EHZ. 2020-06-23T21:12:10.06 3.0 negative manual P -2.56 0
TV.SF01.EHZ. 2020-06-23T21:12:10.27 0.3 undecidable manual S 282 0.1988 108 -0.26 70
IV.LATE.HHZ. 2020-06-23T21:12:09.17 0.6 undecidable manual S 187 0.1583 112 0.13 49
TV.SF13.HHZ. 2020-06-23T21:12:09.04 0.6 undecidable manual S 287 0.161 111 -0.1 49
IV.ARCI.HNE. 2020-06-23T21:12:09.04 0.3 undecidable manual P 287 0.2716 103 0.35 68
TV.SF04.EHZ. 2020-06-23T21:12:08.39 0.3 undecidable manual S 298 0.1394 114 0.01 75
TV.SF14.HHN. 2020-06-23T21:12:08.80 0.6 undecidable manual S 264 0.1583 112 -0.24 47
IV.MCIV.CHZ. 2020-06-23T21:12:07.37 0.6 undecidable manual S 274 0.1124 119 -0.07 50
IV.MGAB.HHZ. 2020-06-23T21:12:07.87 0.3 undecidable manual P 56 0.2509 104 -0.38 68
TV.SF03.EHE. 2020-06-23T21:12:07.46 0.6 undecidable manual S 287 0.1097 120 0.1 49
IV.SACS.HHZ. 2020-06-23T21:12:07.04 0.3 undecidable manual S 37 0.098 123 0.07 75
TV.SF01.EHZ. 2020-06-23T21:12:07.25 0.3 undecidable manual P 282 0.1988 108 0.12 72
TV.SF14.HHN. 2020-06-23T21:12:06.19 0.1 undecidable manual P 264 0.1583 112 -0.08 98
IV.LATE.HHZ. 2020-06-23T21:12:06.18 0.3 undecidable manual P 187 0.1583 112 -0.09 73
TV.SF04.EHZ. 2020-06-23T21:12:06.10 0.3 undecidable manual P 298 0.1394 114 0.21 72
TV.SF13.HHZ. 2020-06-23T21:12:06.39 0.3 undecidable manual P 287 0.161 111 0.07 74
IV.SACS.HHZ. 2020-06-23T21:12:05.03 0.1 positive manual P 37 0.098 123 -0.04 100
IV.MCIV.CHZ. 2020-06-23T21:12:05.40 0.3 undecidable manual P 274 0.1124 119 0.05 75
TV.SF03.EHE. 2020-06-23T21:12:05.47 0.3 undecidable manual P 287 0.1097 120 0.17 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SACS.HHN. ML:0.3 2.94E-5 0.26 AML other m 2020-06-23T21:12:07.20
IV.MCIV.CHE. ML:0.3 2.58E-5 1.16 AML other m 2020-06-23T21:12:08.86
IV.SACS.HHE. ML:0.4 3.535E-5 0.14 AML other m 2020-06-23T21:12:08.32
IV.MCIV.CHN. ML:0.3 2.42E-5 0.78 AML other m 2020-06-23T21:12:09.40
IV.MGAB.HHN. ML:0.4 1.63E-5 0.48 AML other m 2020-06-23T21:12:14.64
IV.MGAB.HHE. ML:0.6 1.885E-5 0.82 AML other m 2020-06-23T21:12:14.85
IV.MCRV.HHE. ML:2.4 1.755E-5 0.74 AML other m 2020-06-23T21:12:32.16
IV.MCRV.HHN. ML:2.4 1.94E-5 0.82 AML other m 2020-06-23T21:12:32.25
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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