Earthquake with magnitude of ML 1.1 on date 01-08-2020 and time 18:05:35 (Italy) in region 2 km SW Castel Giorgio (TR)

A magnitude ML 1.1 earthquake occured in region: 2 km SW Castel Giorgio (TR), on

  • 01-08-2020 16:05:35 (UTC)
  • 01-08-2020 18:05:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7, 11.96 at 19 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
Castel Giorgio TR 2 2131 2131
San Lorenzo Nuovo VT 5 2091 4222
Bolsena VT 6 3991 8213
Castel Viscardo TR 7 2938 11151
Grotte di Castro VT 8 2683 13834
Acquapendente VT 10 5506 19340
Gradoli VT 11 1353 20693
Porano TR 11 1966 22659
Orvieto TR 12 20630 43289
Onano VT 12 995 44284
Allerona TR 13 1794 46078
Proceno VT 13 557 46635
Bagnoregio VT 13 3650 50285
Lubriano VT 14 909 51194
Latera VT 14 836 52030
Capodimonte VT 17 1731 53761
Ficulle TR 18 1669 55430
Marta VT 18 3499 58929
Montefiascone VT 18 13432 72361
Valentano VT 19 2868 75229
Fabro TR 19 2876 78105

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km NW of Viterbo (67173 inhabitants)
57 Km SW of Perugia (166134 inhabitants)
58 Km W of Terni (111501 inhabitants)
67 Km W of Foligno (57155 inhabitants)
69 Km N of Civitavecchia (52991 inhabitants)
70 Km E of Grosseto (82087 inhabitants)
86 Km S of Arezzo (99543 inhabitants)
86 Km SE of Siena (53903 inhabitants)
99 Km NW of Roma (2864731 inhabitants)
100 Km NW of Guidonia Montecelio (88673 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 1.1 2020-08-01
16:05:35
42.7 11.97 19 2020-08-01
16:15:31
Sala Sismica INGV-Roma 81551341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-01 16:05:35 ± 0.29
Latitude 42.70 ± 0.01
Longitude 11.97 ± 0.01
Depth (km) 19 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81551341

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1116
Semi-minor axis of confidence ellipse (meter) 276
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 328
Circular confidence region, given by single value of horizontal uncertainty (meter) 1120
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 146
Number of associated phases, regardless of their use for origin computation 39
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.45326
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 81551341
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-01 16:15:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
XK.SELL.HHZ. 2020-08-01T16:07:28.99 3.0 undecidable manual Sn -9.38 0
SL.KOGS.BHZ. 2020-08-01T16:07:25.62 3.0 undecidable manual Sn 3.43 0
IV.FVI.HHZ. 2020-08-01T16:07:07.67 3.0 undecidable manual Sn 2.25 0
AC.VLO.HHZ. 2020-08-01T16:07:06.47 3.0 positive manual Pg 15.36 0
IV.EUCT.HNZ. 2020-08-01T16:07:02.58 3.0 undecidable manual Sn 3.08 0
IV.PANTE.HHZ. 2020-08-01T16:06:57.44 3.0 positive manual Pn -0.21 0
IV.MUCR.HHZ. 2020-08-01T16:06:56.35 3.0 negative manual Pg 12.05 0
GU.GORR.HHZ. 2020-08-01T16:06:51.17 3.0 undecidable manual Sn 2.53 0
IV.FREG.EHZ. 2020-08-01T16:06:49.75 3.0 undecidable manual Sn -1.61 0
XK.SELL.HHZ. 2020-08-01T16:06:48.97 3.0 positive manual Pg 7.61 0
GU.BHB.HHZ. 2020-08-01T16:06:44.33 3.0 undecidable manual Pg 11.87 0
SL.KOGS.BHZ. 2020-08-01T16:06:41.77 3.0 undecidable manual Pg 9.5 0
ST.RONC.EHZ. 2020-08-01T16:06:32.40 3.0 undecidable manual Pg 13.4 0
CH.FUORN.HHZ. 2020-08-01T16:06:29.66 3.0 negative manual Pn 1.27 0
IV.ROSPO.HHZ. 2020-08-01T16:06:24.05 3.0 undecidable manual Sg 2.84 0
IV.ZCCA.HHZ. 2020-08-01T16:06:21.00 3.0 undecidable manual Sn -0.92 0
IV.CELB.HHZ. 2020-08-01T16:06:20.53 3.0 undecidable manual Sn -0.62 0
OT.OT11.EHZ. 2020-08-01T16:06:09.57 3.0 negative manual Pg 2.9 0
IV.RIBO.EHZ.01 2020-08-01T16:06:08.32 3.0 undecidable manual Sg 2.55 0
IV.VBKN.HHZ. 2020-08-01T16:06:05.40 3.0 positive manual Pn -1.98 0
IV.SFI.EHZ. 2020-08-01T16:05:54.33 3.0 undecidable manual Pg 6.04 0
IV.BRSN.EHZ. 2020-08-01T16:05:51.73 3.0 negative manual Pn -0.3 0
TV.SF01.EHZ. 2020-08-01T16:05:47.55 0.3 undecidable manual S 291 0.3166 108 0.21 76
TV.SF13.HHN. 2020-08-01T16:05:46.41 0.3 undecidable manual S 296 0.2815 111 0.06 79
TV.SF04.EHZ. 2020-08-01T16:05:45.83 0.3 undecidable manual S 302 0.2635 113 -0.03 79
IV.MGAB.HHZ. 2020-08-01T16:05:45.52 0.3 undecidable manual S 26 0.241 115 0.26 76
TV.SF14.HHZ. 2020-08-01T16:05:45.56 0.3 undecidable manual S 283 0.2635 113 -0.32 75
IV.BARO.EHE. 2020-08-01T16:05:44.39 0.6 undecidable manual P 172 0.4533 101 -0.06 51
IV.TERO.HHZ. 2020-08-01T16:05:44.40 3.0 undecidable manual P 0.86 0
IV.LATE.HHZ. 2020-08-01T16:05:43.11 0.3 undecidable manual S 235 0.1448 132 0.24 78
IV.PARC.HHZ. 2020-08-01T16:05:43.62 3.0 undecidable manual P 0.29 0
TV.SF13.HHN. 2020-08-01T16:05:42.27 0.3 undecidable manual P 296 0.2815 111 0.64 68
TV.SF01.EHZ. 2020-08-01T16:05:42.31 0.6 undecidable manual P 291 0.3166 108 0.11 51
TV.SF14.HHZ. 2020-08-01T16:05:41.76 0.3 undecidable manual P 283 0.2635 113 0.41 73
TV.SF04.EHZ. 2020-08-01T16:05:41.15 0.3 undecidable manual P 302 0.2635 113 -0.19 77
IV.MGAB.HHZ. 2020-08-01T16:05:40.72 0.3 undecidable manual P 26 0.241 115 -0.28 76
IV.MCIV.CHN. 2020-08-01T16:05:40.42 0.1 undecidable manual P 291 0.2275 117 -0.36 100
IV.LATE.HHZ. 2020-08-01T16:05:39.17 0.3 undecidable manual P 235 0.1448 132 -0.44 75
IV.GAVE.EHZ. 2020-08-01T16:05:37.22 3.0 negative manual Pn 1.47 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LATE.HHN. ML:0 0.000120180945 0.2176 AML other m 2020-08-01T16:05:46.86
IV.MGAB.HHE. ML:0 4.68E-5 1.18 AML other m 2020-08-01T16:05:47.20
IV.MGAB.HHN. ML:0 5.154899E-5 0.1152 AML other m 2020-08-01T16:05:47.06
IV.PARC.HHN. ML:0 1.37602265E-5 0.064 AML other m 2020-08-01T16:06:15.49
IV.PARC.HHE. ML:0 7.7238555E-6 0.0768 AML other m 2020-08-01T16:06:18.28
IV.VBKN.HHE. ML:0 0.00065816605 0.1792 AML other m 2020-08-01T16:06:21.59
IV.VBKN.HHN. ML:0 0.00060627675 0.0896 AML other m 2020-08-01T16:06:17.78
IV.ZCCA.HHE. ML:2.3 6.24E-5 1.66 AML other m 2020-08-01T16:06:27.88
IV.ZCCA.HHN. ML:2.4 8.105E-5 1.66 AML other m 2020-08-01T16:06:27.93
IV.CELB.HHE. ML:2.3 9.77E-5 0.52 AML other m 2020-08-01T16:06:30.70
IV.CELB.HHN. ML:2.4 0.0001375 0.08 AML other m 2020-08-01T16:06:31.16
IV.GAVE.EHE. ML:1.3 3.0666425E-5 0.0768 AML other m 2020-08-01T16:05:44.02
IV.GAVE.EHN. ML:1.2 2.5187775E-5 0.0768 AML other m 2020-08-01T16:05:43.99
IV.GAVE.HNE. ML:1.9 0.000125262705 0.8192 AML other m 2020-08-01T16:05:56.97
IV.GAVE.HNN. ML:2 0.00014937985 0.9088 AML other m 2020-08-01T16:05:44.63
IV.LATE.HHE. ML:1.2 0.00010288908 0.3584 AML other m 2020-08-01T16:05:43.06
IV.MGAB.HNE. ML:1.3 9.135699E-5 0.7936 AML other m 2020-08-01T16:05:44.82
IV.MGAB.HNN. ML:1.5 0.0001334605 0.7296 AML other m 2020-08-01T16:05:55.58
TV.SF04.EHE. ML:0.8 2.6107766E-5 0.1792 AML other m 2020-08-01T16:05:46.78
TV.SF04.EHN. ML:1.1 4.7957135E-5 0.2176 AML other m 2020-08-01T16:05:48.90
TV.SF01.EHE. ML:0.7 2.0901338E-5 0.4608 AML other m 2020-08-01T16:05:48.59
TV.SF01.EHN. ML:0.8 2.53294495E-5 0.32 AML other m 2020-08-01T16:05:49.80
IV.TERO.HHE. ML:1.2 8.4876375E-6 0.6016 AML other m 2020-08-01T16:05:51.63
IV.TERO.HHN. ML:1.2 1.06222205E-5 0.6144 AML other m 2020-08-01T16:06:05.32
IV.TERO.HNE. ML:2.2 0.000111031 0.896 AML other m 2020-08-01T16:06:12.77
IV.TERO.HNN. ML:2.3 0.00012376176 0.7808 AML other m 2020-08-01T16:06:14.14
IV.BRSN.EHE. ML:2.7 0.00019900707 0.0384 AML other m 2020-08-01T16:05:54.79
IV.BRSN.EHN. ML:2.7 0.00017680115 0.6144 AML other m 2020-08-01T16:06:28.61
IV.BRSN.HNE. ML:2.8 0.0002197992 0.4608 AML other m 2020-08-01T16:06:05.12
IV.BRSN.HNN. ML:3.8 0.002274891 1.0496 AML other m 2020-08-01T16:06:37.50
OT.OT11.EHE. ML:3 0.000110170265 0.1152 AML other m 2020-08-01T16:07:01.18
OT.OT11.EHN. ML:3 0.000122687775 0.1024 AML other m 2020-08-01T16:06:21.83
CH.FUORN.HHE. ML:2.6 1.618728E-5 0.064 AML other m 2020-08-01T16:07:15.80
CH.FUORN.HHN. ML:2.1 7.2979775E-6 0.064 AML other m 2020-08-01T16:07:15.83
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