Earthquake with magnitude of ML 1.5 on date 10-10-2018 and time 02:42:39 (Italy) in region 6 km N Proceno (VT)

A magnitude ML 1.5 earthquake occured in region: 6 km N Proceno (VT), on

  • 10-10-2018 00:42:39 (UTC)
  • 10-10-2018 02:42:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8150, 11.8250 at 8 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 6 557 557
San Casciano dei Bagni SI 8 1632 2189
Acquapendente VT 9 5506 7695
Radicofani SI 10 1097 8792
Castell'Azzara GR 11 1476 10268
Piancastagnaio SI 12 4230 14498
Allerona TR 12 1794 16292
Onano VT 13 995 17287
Abbadia San Salvatore SI 14 6444 23731
San Lorenzo Nuovo VT 16 2091 25822
Castel Viscardo TR 16 2938 28760
Grotte di Castro VT 16 2683 31443
Fabro TR 16 2876 34319
Castel Giorgio TR 17 2131 36450
Sorano GR 17 3428 39878
Cetona SI 18 2755 42633
Gradoli VT 19 1353 43986
Santa Fiora GR 20 2622 46608
Ficulle TR 20 1669 48277
Sarteano SI 20 4717 52994

Municipalities with at least 50000 inhabitants

An earthquake occurred to
50 Km NW of Viterbo (67173 inhabitants)
56 Km SW of Perugia (166134 inhabitants)
58 Km E of Grosseto (82087 inhabitants)
69 Km SE of Siena (53903 inhabitants)
73 Km S of Arezzo (99543 inhabitants)
73 Km W of Terni (111501 inhabitants)
73 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 1.5 2018-10-10
00:42:39
42.815 11.8252 8 2019-06-04
09:16:06
Bollettino Sismico Italiano INGV 64624051
Reviewed
Rev100
ML 1.6 2018-10-10
00:42:39
42.8105 11.8183 9 2018-10-10
00:49:19
Sala Sismica INGV-Roma 61785781
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-10-10 00:42:39 ± 0.06
Latitude 42.8150 ± 0.0045
Longitude 11.8252 ± 0.0037
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 64624051

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 373
Semi-minor axis of confidence ellipse (meter) 327
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 182
Circular confidence region, given by single value of horizontal uncertainty (meter) 370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 79
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.07105
Epicentral distance of station farthest from the epicenter (degree) 0.76173
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 24
Type of magnitude ML
Reference to an origin 64624051
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-05-06 08:55:30

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 24
Type of magnitude ML
Reference to an origin 61785781
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-10-10 00:49:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATMI.HHZ. 2018-10-10T00:43:00.88 0.3 undecidable manual S 32 67.8765 50 0.29 64
IV.CAFI.HHZ. 2018-10-10T00:42:57.95 0.6 undecidable manual S 11 58.1973 50 -0.06 46
IV.TOLF.HHN. 2018-10-10T00:42:54.07 0.6 undecidable manual P 170 84.5487 50 -0.1 43
IV.CASP.HHE. 2018-10-10T00:42:53.75 0.3 undecidable manual P 268 78.1662 50 0.56 59
IV.MURB.HHZ. 2018-10-10T00:42:52.81 0.6 undecidable manual P 49 75.369 50 0.05 44
IV.MAON.HHZ. 2018-10-10T00:42:52.26 0.3 undecidable manual P 233 71.0733 50 0.17 65
IV.ATMI.HHZ. 2018-10-10T00:42:51.41 0.6 undecidable manual P 32 67.8765 50 -0.19 44
IV.MOMA.HNZ. 2018-10-10T00:42:50.35 0.3 undecidable manual P 91 60.5949 50 -0.14 67
IV.ARCI.HHZ. 2018-10-10T00:42:49.38 0.3 undecidable manual S 278 28.749 105 -0.27 69
IV.ATTE.HHN. 2018-10-10T00:42:49.85 0.6 undecidable manual P 45 60.3951 50 -0.59 40
IV.CAFI.HHZ. 2018-10-10T00:42:49.84 0.3 undecidable manual P 11 58.1973 50 -0.27 65
IV.MGAB.HHZ. 2018-10-10T00:42:48.92 0.6 undecidable manual S 65 25.752 107 0.27 46
IV.LATE.HHZ. 2018-10-10T00:42:47.70 0.3 undecidable manual S 184 22.3554 109 0.15 72
TV.SF01.EHZ. 2018-10-10T00:42:47.04 0.3 undecidable manual S 269 21.2676 110 -0.16 72
TV.SF13.HHE. 2018-10-10T00:42:45.72 0.3 undecidable manual S 271 16.7721 115 -0.01 74
IV.ARCI.HHZ. 2018-10-10T00:42:45.27 0.1 positive manual P 278 28.749 105 -0.01 97
TV.SF14.HHE. 2018-10-10T00:42:45.58 0.3 undecidable manual S 249 18.3705 113 -0.67 63
TV.SF01.EHZ. 2018-10-10T00:42:44.15 0.3 undecidable manual P 269 21.2676 110 0.29 70
IV.MGAB.HHZ. 2018-10-10T00:42:44.33 0.1 positive manual P 65 25.752 107 -0.37 91
IV.MCIV.HHZ. 2018-10-10T00:42:44.49 0.3 undecidable manual S 252 12.7761 122 -0.02 75
TV.SF11.HHE. 2018-10-10T00:42:44.62 0.3 undecidable manual S 297 13.2756 121 -0.05 74
TV.SF04.EHZ. 2018-10-10T00:42:44.73 0.3 undecidable manual S 280 13.5753 120 -0.03 74
IV.LATE.HHZ. 2018-10-10T00:42:44.08 0.3 undecidable manual P 184 22.3554 109 0.01 74
TV.SF03.EHZ. 2018-10-10T00:42:44.23 0.3 undecidable manual S 263 11.4774 125 0.1 74
TV.SF13.HHE. 2018-10-10T00:42:43.15 0.1 positive manual P 271 16.7721 115 0.13 97
IV.SACS.HHZ. 2018-10-10T00:42:43.22 0.3 undecidable manual S 61 7.881 135 0.05 75
TV.SF11.HHE. 2018-10-10T00:42:42.66 0.1 positive manual P 297 13.2756 121 0.25 95
TV.SF04.EHZ. 2018-10-10T00:42:42.69 0.1 positive manual P 280 13.5753 120 0.23 95
TV.SF03.EHZ. 2018-10-10T00:42:42.32 0.1 positive manual P 263 11.4774 125 0.23 96
TV.SF14.HHE. 2018-10-10T00:42:42.91 0.1 positive manual P 249 18.3705 113 -0.41 91
IV.MCIV.HHZ. 2018-10-10T00:42:42.46 0.1 positive manual P 252 12.7761 122 0.14 97
IV.SACS.HHZ. 2018-10-10T00:42:41.58 0.1 positive manual P 61 7.881 135 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SACS.HHE. ML:1.7 0.00085582955 0.24 AML other m 2018-10-10T00:42:43.75
IV.SACS.HNN. ML:1.5 0.00055008695 0.26 AML other m 2018-10-10T00:42:44.20
IV.SACS.HHN. ML:1.5 0.00053288345 0.12 AML other m 2018-10-10T00:42:43.00
IV.SACS.HNE. ML:1.7 0.00086230595 0.24 AML other m 2018-10-10T00:42:43.75
IV.MCIV.HHE. ML:1.6 0.00043903904999999997 0.336 AML other m 2018-10-10T00:42:45.01
IV.MCIV.HHN. ML:1.3 0.00023733115 0.136 AML other m 2018-10-10T00:42:45.81
TV.SF04.EHN. ML:1.6 0.0004724143 0.24 AML other m 2018-10-10T00:42:45.84
TV.SF04.EHE. ML:1.8 0.00075948585 0.16 AML other m 2018-10-10T00:42:45.43
IV.LATE.HHN. ML:1.6 0.00028158195000000004 0.34 AML other m 2018-10-10T00:42:51.20
IV.LATE.HHE. ML:1.5 0.0002372196 0.4 AML other m 2018-10-10T00:42:53.57
TV.SF01.EHN. ML:1.7 0.0003472851 0.3 AML other m 2018-10-10T00:42:49.44
TV.SF01.EHE. ML:1.6 0.00031904225000000004 0.3 AML other m 2018-10-10T00:42:47.74
IV.MGAB.HHE. ML:1.4 0.0001455 0.36 AML other m 2018-10-10T00:42:49.89
IV.MGAB.HNE. ML:1.3 0.0001455 0.96 AML other m 2018-10-10T00:42:49.48
IV.MGAB.HNN. ML:1.4 0.000153 0.12 AML other m 2018-10-10T00:42:49.79
IV.MGAB.HHN. ML:1.4 0.00014843390000000002 0.12 AML other m 2018-10-10T00:42:49.79
IV.ARCI.HHE. ML:1.1 0.00006053564 0.24 AML other m 2018-10-10T00:42:50.86
IV.ARCI.HHN. ML:0.9 0.000045810705 0.36 AML other m 2018-10-10T00:42:51.45
IV.CAFI.HHN. ML:0.8 0.000015092194999999999 0.3 AML other m 2018-10-10T00:43:01.08
IV.CAFI.HHE. ML:1.0 0.0000182883 0.2 AML other m 2018-10-10T00:43:00.94
IV.ATMI.HHN. ML:1.6 0.000069944625 0.42 AML other m 2018-10-10T00:43:02.51
IV.ATMI.HHE. ML:1.4 0.00004659217 0.26 AML other m 2018-10-10T00:43:06.20
IV.MURB.HHN. ML:1.8 0.00009167223500000001 0.3 AML other m 2018-10-10T00:43:07.83
IV.MURB.HHE. ML:1.8 0.00009493574499999999 0.26 AML other m 2018-10-10T00:43:06.95
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