Earthquake with magnitude of ML 1.7 on date 23-06-2020 and time 13:59:58 (UTC) in region 1 km N Proceno (VT)

A magnitude ML 1.7 earthquake occured in region: 1 km N Proceno (VT), on

  • 23-06-2020 13:59:58 (UTC)
  • 23-06-2020 15:59:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7700, 11.8310 at 10 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 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
Castel Giorgio TR 14 2131 22293
Gradoli VT 14 1353 23646
Castel Viscardo TR 14 2938 26584
Piancastagnaio SI 14 4230 30814
Radicofani SI 15 1097 31911
Latera VT 16 836 32747
Abbadia San Salvatore SI 18 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)
59 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
Bulletin
Rev1000
ML 1.7 2020-06-23
13:59:58
42.7702 11.8308 10 2020-11-19
12:37:03
Bollettino Sismico Italiano INGV 83241031
Reviewed
Rev100
ML 1.7 2020-06-23
13:59:58
42.764 11.8332 6 2020-06-23
14:11:29
Sala Sismica INGV-Roma 80443381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-06-23 13:59:58 ± 0.08
Latitude 42.7702 ± 0.0036
Longitude 11.8308 ± 0.0049
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 83241031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 419
Semi-minor axis of confidence ellipse (meter) 324
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 354
Circular confidence region, given by single value of horizontal uncertainty (meter) 420.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 132
Number of associated phases, regardless of their use for origin computation 39
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.25091
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 17
Type of magnitude ML
Reference to an origin 83241031
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-10-05 16:45:48

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 17
Type of magnitude ML
Reference to an origin 80443381
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-06-23 14:11:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.USI.HHZ. 2020-06-23T14:01:46.52 3.0 undecidable manual Sn -9.99 0
IV.LADO.EHZ. 2020-06-23T14:01:28.64 3.0 undecidable manual Pg 8.47 0
IV.CADC.HNZ. 2020-06-23T14:01:26.59 3.0 undecidable manual Sg 5.97 0
IV.VCRE.HHZ. 2020-06-23T14:01:26.01 3.0 undecidable manual Sg 2.74 0
IV.CRTO.HHZ. 2020-06-23T14:01:25.73 3.0 undecidable manual Sg 2.62 0
GU.CANO.HHZ. 2020-06-23T14:01:23.39 3.0 undecidable manual Sn 0.74 0
IV.ZONE.HHZ. 2020-06-23T14:01:23.01 3.0 undecidable manual Sn -4.53 0
GU.RNCA.HHZ. 2020-06-23T14:01:18.10 3.0 undecidable manual Sn 3 0
IT.LRNO.HNZ. 2020-06-23T14:01:11.76 3.0 undecidable manual Sn -3.96 0
IV.SALB.HHZ. 2020-06-23T14:01:11.31 3.0 undecidable manual Pn 1.64 0
IV.USI.HHZ. 2020-06-23T14:01:03.60 3.0 positive manual Pn -2.68 0
OX.CIMO.HHZ. 2020-06-23T14:00:57.57 3.0 negative manual Pg 4.15 0
SL.LJU.BHZ. 2020-06-23T14:00:53.47 3.0 undecidable manual Pn -3.65 0
IV.FIU.EHZ. 2020-06-23T14:00:50.35 3.0 undecidable manual Sn -4.21 0
IV.PAOL.HHZ. 2020-06-23T14:00:49.12 3.0 undecidable manual Pg 3.88 0
MN.VLC.HHZ. 2020-06-23T14:00:49.78 3.0 undecidable manual Sn -1.57 0
IV.PTRJ.HNZ. 2020-06-23T14:00:47.39 3.0 undecidable manual Pg 5.44 0
IV.POFI.HHZ. 2020-06-23T14:00:28.64 3.0 undecidable manual Pn -3.72 0
IV.SFI.EHZ. 2020-06-23T14:00:18.43 3.0 undecidable manual P -0.79 0
IV.MGAB.HHZ. 2020-06-23T14:00:08.57 0.6 undecidable manual S 55 27.8499 50 -0.08 48
TV.SF01.EHZ. 2020-06-23T14:00:06.64 0.3 undecidable manual S 282 22.2555 114 -0.25 71
IV.LATE.HHZ. 2020-06-23T14:00:05.36 0.3 undecidable manual S 187 17.4714 119 -0.04 75
TV.SF14.HHZ. 2020-06-23T14:00:05.16 0.3 undecidable manual S 265 17.6712 119 -0.3 71
TV.SF13.HHN. 2020-06-23T14:00:05.47 0.6 undecidable manual S 287 17.9709 118 -0.09 49
TV.SF11.HHZ. 2020-06-23T14:00:05.08 0.3 undecidable manual S 312 16.4724 120 -0.02 75
TV.SF04.EHZ. 2020-06-23T14:00:04.86 0.6 undecidable manual S 298 15.6732 122 0.01 50
IV.MGAB.HHZ. 2020-06-23T14:00:04.06 0.1 positive manual P 55 27.8499 50 -0.29 93
TV.SF03.EHE. 2020-06-23T14:00:03.75 0.3 undecidable manual S 287 12.3765 128 -0.16 74
IV.SACS.HHZ. 2020-06-23T14:00:03.28 0.6 undecidable manual S 36 10.878 132 -0.23 48
TV.SF01.EHZ. 2020-06-23T14:00:03.62 0.3 undecidable manual P 282 22.2555 114 0.3 70
IV.MCIV.CHZ. 2020-06-23T14:00:03.66 0.3 undecidable manual S 274 12.5763 128 -0.31 71
TV.SF04.EHZ. 2020-06-23T14:00:02.42 0.3 undecidable manual P 298 15.6732 122 0.27 71
TV.SF14.HHZ. 2020-06-23T14:00:02.54 0.1 negative manual P 265 17.6712 119 0.04 100
TV.SF13.HHN. 2020-06-23T14:00:02.70 0.1 undecidable manual P 287 17.9709 118 0.14 97
TV.SF11.HHZ. 2020-06-23T14:00:02.54 0.1 negative manual P 312 16.4724 120 0.25 96
IV.LATE.HHZ. 2020-06-23T14:00:02.51 0.1 positive manual P 187 17.4714 119 0.04 99
IV.MCIV.CHZ. 2020-06-23T14:00:01.74 0.1 negative manual P 274 12.5763 128 0.09 99
TV.SF03.EHE. 2020-06-23T14:00:01.83 0.1 negative manual P 287 12.3765 128 0.22 97
IV.SACS.HHZ. 2020-06-23T14:00:01.45 0.1 positive manual P 36 10.878 132 0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MCIV.CHN. ML:1.6 0.00045400000000000003 1.06 AML other m 2020-06-23T14:00:03.82
IV.SACS.HNN. ML:1.5 0.0004235 0.74 AML other m 2020-06-23T14:00:04.41
IV.SACS.HHN. ML:1.5 0.00040849999999999995 0.28 AML other m 2020-06-23T14:00:05.27
TV.SF04.EHE. ML:1.9 0.0007365 0.34 AML other m 2020-06-23T14:00:05.65
TV.SF04.EHN. ML:1.9 0.0008125 1.32 AML other m 2020-06-23T14:00:05.20
TV.SF01.EHN. ML:1.9 0.0005110000000000001 0.24 AML other m 2020-06-23T14:00:06.90
IV.SACS.HNE. ML:1.4 0.0003165 1.36 AML other m 2020-06-23T14:00:07.72
IV.SACS.HHE. ML:1.5 0.00035999999999999997 1.38 AML other m 2020-06-23T14:00:07.73
TV.SF01.EHE. ML:1.9 0.000519 0.6 AML other m 2020-06-23T14:00:07.86
IV.LATE.HHE. ML:2.0 0.000796 0.46 AML other m 2020-06-23T14:00:09.34
IV.MGAB.HHE. ML:1.5 0.0001735 1.04 AML other m 2020-06-23T14:00:10.78
IV.MGAB.HNE. ML:1.5 0.00015949999999999997 1.04 AML other m 2020-06-23T14:00:10.78
IV.LATE.HHN. ML:2.1 0.00101 0.28 AML other m 2020-06-23T14:00:12.61
IV.MGAB.HHN. ML:1.5 0.0001785 0.28 AML other m 2020-06-23T14:00:13.17
IV.MGAB.HNN. ML:1.5 0.00017449999999999999 0.28 AML other m 2020-06-23T14:00:13.17
OX.CIMO.HHE. ML:3.0 0.0000563 0.12 AML other m 2020-06-23T14:01:05.01
OX.CIMO.HHN. ML:2.9 0.000051250000000000006 0.14 AML other m 2020-06-23T14:01:05.20
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