Earthquake with magnitude of ML 1.2 on date 23-06-2020 and time 17:37:15 (Italy) in region 2 km N Proceno (VT)

A magnitude ML 1.2 earthquake occured in region: 2 km N Proceno (VT), on

  • 23-06-2020 15:37:15 (UTC)
  • 23-06-2020 17:37:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.77, 11.83 at 8 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 2 557 557
Acquapendente VT 5 5506 6063
Onano VT 9 995 7058
Castell'Azzara GR 10 1476 8534
Grotte di Castro VT 12 2683 11217
San Lorenzo Nuovo VT 12 2091 13308
San Casciano dei Bagni SI 12 1632 14940
Allerona TR 13 1794 16734
Sorano GR 14 3428 20162
Piancastagnaio SI 14 4230 24392
Castel Giorgio TR 15 2131 26523
Gradoli VT 15 1353 27876
Castel Viscardo TR 15 2938 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
46 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)
75 Km W of Foligno (57155 inhabitants)
76 Km N of Civitavecchia (52991 inhabitants)
77 Km S of Arezzo (99543 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.2 2020-06-23
15:37:15
42.77 11.83 8 2020-06-23
16:22:06
Sala Sismica INGV-Roma 80449321
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-06-23 15:37:15 ± 0.09
Latitude 42.77 ± 0.00
Longitude 11.83 ± 0.00
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 80449321

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 288
Semi-minor axis of confidence ellipse (meter) 100
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 169
Circular confidence region, given by single value of horizontal uncertainty (meter) 290
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 130
Number of associated phases, regardless of their use for origin computation 41
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.25181
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 80449321
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-06-23 16:22:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
SI.BOSI.HHZ. 2020-06-23T15:39:11.18 3.0 undecidable manual Sg 7.93 0
IV.CPTP.HHZ. 2020-06-23T15:38:55.80 3.0 negative manual Pg 12.62 0
IV.HPAC.HHZ. 2020-06-23T15:38:51.03 3.0 negative manual Pn -4.38 0
IV.ACATE.HNZ. 2020-06-23T15:38:49.32 3.0 negative manual Pn -0.01 0
IV.MTMR.EHZ. 2020-06-23T15:38:45.10 3.0 undecidable manual Sn 0.36 0
IV.SCIAR.HHZ. 2020-06-23T15:38:43.60 3.0 undecidable manual Pg 8.72 0
IV.ERC.EHZ. 2020-06-23T15:38:42.79 3.0 undecidable manual Pg 11.7 0
IV.CAGR.HHZ. 2020-06-23T15:38:38.61 3.0 undecidable manual Pn -3 0
IV.IACL.HHZ. 2020-06-23T15:38:24.48 3.0 negative manual Pn -4.96 0
OX.CIMO.HHZ. 2020-06-23T15:38:13.85 3.0 positive manual Pn -0.9 0
IV.QLNO.HHZ. 2020-06-23T15:38:12.63 3.0 undecidable manual Pg 5.78 0
IV.LATB.EHZ. 2020-06-23T15:38:04.04 3.0 undecidable manual S -4.69 0
IV.PIGN.HHZ. 2020-06-23T15:38:02.76 3.0 positive manual Pg 4.93 0
IV.NDIM.HNZ. 2020-06-23T15:38:01.04 3.0 negative manual Pg 4.64 0
IV.TERO.HHZ. 2020-06-23T15:38:01.89 3.0 undecidable manual S -1.47 0
IV.MNTP.HNZ. 2020-06-23T15:37:59.33 3.0 undecidable manual S -2.66 0
IV.CRTC.HHZ. 2020-06-23T15:37:57.69 3.0 undecidable manual S -4.55 0
IV.BRSN.HNZ. 2020-06-23T15:37:47.17 3.0 negative manual P 0.46 0
IV.CRTC.HHZ. 2020-06-23T15:37:43.20 3.0 undecidable manual P 0.27 0
IV.FOSV.EHZ. 2020-06-23T15:37:36.11 3.0 undecidable manual P 0.07 0
IV.APEC.HHZ. 2020-06-23T15:37:32.63 3.0 undecidable manual P -4.25 0
IV.MGAB.HHZ. 2020-06-23T15:37:25.97 0.6 undecidable manual S 56 0.2518 105 0.13 48
TV.SF01.EHZ. 2020-06-23T15:37:23.62 0.3 undecidable manual S 282 0.1961 109 -0.16 72
TV.SF14.HHE. 2020-06-23T15:37:22.08 0.6 undecidable manual S 264 0.1556 113 -0.25 47
TV.SF13.HHE. 2020-06-23T15:37:22.30 0.3 undecidable manual S 287 0.1583 113 -0.1 73
IV.LATE.HHZ. 2020-06-23T15:37:22.50 0.6 undecidable manual S 186 0.1601 113 0.03 49
TV.SF04.EHZ. 2020-06-23T15:37:21.76 0.6 undecidable manual S 297 0.1367 116 0.12 49
TV.SF11.HHE. 2020-06-23T15:37:21.97 0.6 undecidable manual S 312 0.1439 115 0.06 49
IV.MGAB.HHZ. 2020-06-23T15:37:21.31 0.3 undecidable manual P 56 0.2518 105 -0.28 69
TV.SF01.EHZ. 2020-06-23T15:37:20.51 0.3 undecidable manual P 282 0.1961 109 0.11 72
IV.MCIV.CHZ. 2020-06-23T15:37:20.64 0.3 undecidable manual S 273 0.1097 122 -0.1 74
TV.SF03.EHN. 2020-06-23T15:37:20.76 0.3 undecidable manual S 286 0.107 122 0.11 74
IV.SACS.HHZ. 2020-06-23T15:37:20.37 0.3 undecidable manual S 39 0.098 125 0.01 75
TV.SF11.HHE. 2020-06-23T15:37:19.50 0.3 undecidable manual P 312 0.1439 115 0.18 72
IV.LATE.HHZ. 2020-06-23T15:37:19.78 0.3 undecidable manual P 186 0.1601 113 0.14 73
TV.SF14.HHE. 2020-06-23T15:37:19.46 0.1 negative manual P 264 0.1556 113 -0.1 97
TV.SF13.HHE. 2020-06-23T15:37:19.63 0.1 negative manual P 287 0.1583 113 0.03 99
TV.SF04.EHZ. 2020-06-23T15:37:19.23 0.1 negative manual P 297 0.1367 116 0.06 99
IV.SACS.HHZ. 2020-06-23T15:37:18.32 0.1 positive manual P 39 0.098 125 -0.11 98
IV.MCIV.CHZ. 2020-06-23T15:37:18.63 0.1 negative manual P 273 0.1097 122 -0.02 100
TV.SF03.EHN. 2020-06-23T15:37:18.72 0.1 undecidable manual P 286 0.107 122 0.12 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MCIV.CHN. ML:1 0.000124 0.62 AML other m 2020-06-23T15:37:20.70
TV.SF04.EHE. ML:1.2 0.00018 0.26 AML other m 2020-06-23T15:37:22.78
TV.SF04.EHN. ML:1.3 0.000219 0.14 AML other m 2020-06-23T15:37:23.00
TV.SF01.EHE. ML:1.2 0.00012735 1.48 AML other m 2020-06-23T15:37:24.74
IV.MCIV.CHE. ML:1 0.0001225 0.24 AML other m 2020-06-23T15:37:24.86
TV.SF01.EHN. ML:1.3 0.000131 0.84 AML other m 2020-06-23T15:37:25.00
IV.LATE.HHE. ML:1.3 0.0001895 0.5 AML other m 2020-06-23T15:37:26.19
IV.LATE.HHN. ML:1.4 0.000236 0.56 AML other m 2020-06-23T15:37:29.48
IV.FOSV.EHE. ML:1.4 2.255E-5 0.08 AML other m 2020-06-23T15:37:41.71
IV.FOSV.EHN. ML:1.4 2.72E-5 0.08 AML other m 2020-06-23T15:37:41.71
IV.BRSN.EHE. ML:3.6 0.001795 0.58 AML other m 2020-06-23T15:37:59.68
IV.BRSN.EHN. ML:3.4 0.0010345 0.08 AML other m 2020-06-23T15:38:00.04
IV.BRSN.HNN. ML:3.4 0.0009885 0.08 AML other m 2020-06-23T15:38:00.04
IV.LATB.EHE. ML:2.3 7.56E-5 0.5 AML other m 2020-06-23T15:38:05.74
IV.LATB.EHN. ML:2 3.89E-5 0.84 AML other m 2020-06-23T15:38:06.46
IV.MTMR.EHN. ML:2.8 5.745E-5 1.58 AML other m 2020-06-23T15:38:28.93
IV.MTMR.EHE. ML:3.2 0.00013535 1.58 AML other m 2020-06-23T15:38:28.17
IV.IACL.HHN. ML:3.7 0.0001359 0.48 AML other m 2020-06-23T15:38:30.57
IV.BRSN.HNE. ML:4.7 0.01965 0.54 AML other m 2020-06-23T15:38:32.22
OX.CIMO.HHN. ML:2.8 3.435E-5 0.12 AML other m 2020-06-23T15:39:01.27
OX.CIMO.HHE. ML:2.6 2.42E-5 0.36 AML other m 2020-06-23T15:39:01.12
IV.IACL.HHE. ML:3.8 0.0001515 1.1 AML other m 2020-06-23T15:39:36.11
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download