Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 06-12-2023 and time 21:01:37 (Italy) in region 4 km N Castel Viscardo (TR)

A magnitude ML 2.2 earthquake occured in region: 4 km N Castel Viscardo (TR), on

  • 06-12-2023 20:01:37 (UTC)
  • 06-12-2023 21:01:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7890, 12.0060 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Allerona TR 4 1794 1794
Castel Viscardo TR 4 2938 4732
Ficulle TR 7 1669 6401
Fabro TR 8 2876 9277
Castel Giorgio TR 9 2131 11408
Orvieto TR 12 20630 32038
Parrano TR 12 534 32572
Acquapendente VT 12 5506 38078
Porano TR 14 1966 40044
San Casciano dei Bagni SI 14 1632 41676
San Lorenzo Nuovo VT 14 2091 43767
Proceno VT 15 557 44324
Monteleone d'Orvieto TR 15 1467 45791
Bolsena VT 16 3991 49782
Montegabbione TR 16 1216 50998
Grotte di Castro VT 17 2683 53681
Città della Pieve PG 18 7712 61393
Onano VT 19 995 62388
Lubriano VT 19 909 63297
Bagnoregio VT 20 3650 66947

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km N of Viterbo (67173 inhabitants)
47 Km SW of Perugia (166134 inhabitants)
58 Km W of Terni (111501 inhabitants)
60 Km W of Foligno (57155 inhabitants)
73 Km E of Grosseto (82087 inhabitants)
76 Km S of Arezzo (99543 inhabitants)
79 Km N of Civitavecchia (52991 inhabitants)
80 Km SE of Siena (53903 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 2.2 2023-12-06
20:01:37		 42.789 12.0057 8 2023-12-06
20:12:28		 Sala Sismica INGV-Roma 123858631
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-12-06 20:01:37 ± 0.12
Latitude 42.7890 ± 0.0054
Longitude 12.0057 ± 0.0098
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 123858631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 748
Semi-minor axis of confidence ellipse (meter) 570
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 291
Circular confidence region, given by single value of horizontal uncertainty (meter) 750.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 63
Number of associated phases, regardless of their use for origin computation 63
Number of defining phases 33
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.98386
Number of stations at which the event was observed 48
Number of stations from which data was used for origin computation 20
Magnitude information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 84
Type of magnitude ML
Reference to an origin 123858631
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-12-06 20:12:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.TRAV.HHZ. 2023-12-06T20:03:34.62 3.0 undecidable manual Sn 6.51 0
SI.BOSI.HHZ. 2023-12-06T20:03:33.60 3.0 undecidable manual Sg 14.16 0
IV.SPS2.HHZ. 2023-12-06T20:03:01.90 3.0 positive manual Pg 12.33 0
IT.PLTA.HNZ. 2023-12-06T20:02:48.51 3.0 undecidable manual Sg 4.67 0
ST.CARE.HNZ. 2023-12-06T20:02:33.72 3.0 negative manual Pn -1.2 0
IV.CRND.HNZ. 2023-12-06T20:02:27.86 3.0 undecidable manual Pn 2.59 0
IV.ZCCA.HNZ. 2023-12-06T20:02:09.40 3.0 undecidable manual Pg 2.27 0
IV.PIEI.HHZ. 2023-12-06T20:02:07.53 3.0 undecidable manual S 0.23 0
IV.CSNT.HHZ. 2023-12-06T20:02:06.40 3.0 undecidable manual S -0.99 0
IV.TOLF.HHZ. 2023-12-06T20:02:03.20 0.3 undecidable manual S 180 80.4639 50 0.9 51
IV.LMD.HHZ. 2023-12-06T20:02:02.73 3.0 negative manual P 1.38 0
IV.RIBO.EHZ.01 2023-12-06T20:02:02.03 3.0 undecidable manual S -0.71 0
IV.ATPI.EHZ. 2023-12-06T20:02:02.94 0.3 undecidable manual S 23 80.1642 50 0.71 56
IV.ATVO.HHZ. 2023-12-06T20:02:01.36 0.3 undecidable manual S 26 73.371 50 0.93 51
IV.MF5.EHZ. 2023-12-06T20:02:00.08 3.0 undecidable manual P 1.38 0
IV.SFI.EHZ. 2023-12-06T20:01:59.40 3.0 undecidable manual P 0.57 0
IV.MURB.HHZ. 2023-12-06T20:01:59.12 0.3 undecidable manual S 38 67.377 50 0.3 65
IV.ATCC.EHZ. 2023-12-06T20:01:59.21 0.3 undecidable manual S 49 67.6767 50 0.31 64
IV.ATMI.HHZ. 2023-12-06T20:01:58.38 0.6 undecidable manual S 19 64.0914 50 0.43 42
IV.CERT.HHZ. 2023-12-06T20:01:58.19 3.0 undecidable manual P -0.81 0
IV.CAFI.HHZ. 2023-12-06T20:01:57.08 0.3 undecidable manual S 357 59.9955 50 0.22 67
IV.BARO.EHZ. 2023-12-06T20:01:57.50 0.3 undecidable manual S 176 60.0954 50 0.61 60
IV.MMO1.EHZ. 2023-12-06T20:01:57.16 3.0 positive manual P 0.15 0
IV.SMA1.EHZ. 2023-12-06T20:01:56.65 3.0 negative manual P -0.67 0
IV.FIAM.HHZ. 2023-12-06T20:01:56.01 3.0 positive manual P -0.94 0
IV.ARVD.HHZ. 2023-12-06T20:01:56.26 0.3 undecidable manual P 44 109.2129 50 -0.03 63
IV.MPAG.EHZ. 2023-12-06T20:01:56.18 3.0 undecidable manual P -1.08 0
IV.RM33.EHZ. 2023-12-06T20:01:56.14 3.0 positive manual P -0.11 0
IV.CESX.HHZ. 2023-12-06T20:01:55.16 0.1 undecidable manual S 113 51.4152 50 0.59 82
IV.CSP1.EHZ. 2023-12-06T20:01:55.52 3.0 negative manual P -0.58 0
IV.TRIF.CHZ. 2023-12-06T20:01:55.26 3.0 undecidable manual P 0.85 0
IV.CSNT.HHZ. 2023-12-06T20:01:54.07 3.0 undecidable manual P -0.18 0
IV.FRON.EHZ. 2023-12-06T20:01:54.55 3.0 undecidable manual P -0.78 0
IV.FDMO.HHZ. 2023-12-06T20:01:54.05 3.0 negative manual P -0.22 0
IV.SSFR.HHZ. 2023-12-06T20:01:54.00 3.0 positive manual P -0.66 0
IV.MML1.EHZ. 2023-12-06T20:01:53.05 1.0 positive manual P 65 86.3469 50 0.28 21
IV.CRE.HHZ. 2023-12-06T20:01:53.85 3.0 negative manual P 0.02 0
IV.NRCA.HHZ. 2023-12-06T20:01:53.16 3.0 negative manual P -0.88 0
IV.PIEI.HHZ. 2023-12-06T20:01:53.76 3.0 negative manual P -0.44 0
IV.LNSS.HHZ. 2023-12-06T20:01:52.75 3.0 undecidable manual P -0.73 0
IV.ATPI.EHZ. 2023-12-06T20:01:51.44 1.0 negative manual P 23 80.1642 50 -0.37 21
IV.SRES.HHZ. 2023-12-06T20:01:51.38 3.0 negative manual P 0.17 0
IV.CESI.HHZ. 2023-12-06T20:01:51.28 0.1 undecidable manual P 72 76.8675 50 -0.03 90
IV.TOLF.HHZ. 2023-12-06T20:01:51.41 0.1 undecidable manual P 180 80.4639 50 -0.45 81
IV.ATVO.HHZ. 2023-12-06T20:01:50.38 0.1 undecidable manual P 26 73.371 50 -0.39 84
IV.ATCC.EHZ. 2023-12-06T20:01:49.29 0.1 undecidable manual P 49 67.6767 50 -0.6 79
IV.ARRO.EHZ. 2023-12-06T20:01:49.49 0.6 positive manual P 110 66.1893 50 -0.17 44
IV.MURB.HHZ. 2023-12-06T20:01:49.33 0.1 undecidable manual P 38 67.377 50 -0.51 82
IV.ATMI.HHZ. 2023-12-06T20:01:48.77 0.1 positive manual P 19 64.0914 50 -0.57 81
IV.CAFI.HHZ. 2023-12-06T20:01:48.19 0.1 undecidable manual P 357 59.9955 50 -0.52 83
IV.BARO.EHZ. 2023-12-06T20:01:48.46 0.1 undecidable manual P 176 60.0954 50 -0.27 88
TV.SF11.HHZ. 2023-12-06T20:01:47.01 0.3 undecidable manual S 288 28.0497 105 -0.63 63
IV.MCIV.CHZ. 2023-12-06T20:01:47.33 0.1 undecidable manual S 268 26.8509 106 0.09 97
IV.ASSB.HHZ. 2023-12-06T20:01:47.96 0.6 negative manual P 62 60.0954 50 -0.75 38
IV.CESX.HHZ. 2023-12-06T20:01:46.88 1.0 undecidable manual P 113 51.4152 50 -0.5 21
IV.MOMA.HHZ. 2023-12-06T20:01:45.92 0.1 undecidable manual P 88 46.0206 50 -0.62 82
IV.MGAB.HNZ. 2023-12-06T20:01:44.02 0.3 undecidable manual S 32 16.1727 115 0.25 72
TV.SF11.HHZ. 2023-12-06T20:01:43.24 0.3 negative manual P 288 28.0497 105 -0.14 72
IV.LATE.HHZ. 2023-12-06T20:01:43.20 0.1 undecidable manual P 220 25.4523 106 0.31 93
IV.MCIV.CHZ. 2023-12-06T20:01:42.91 0.3 undecidable manual P 268 26.8509 106 -0.25 70
IV.SACS.HHZ. 2023-12-06T20:01:42.68 0.1 undecidable manual S 311 10.2786 126 0.7 84
IV.MGAB.HNZ. 2023-12-06T20:01:41.18 0.1 positive manual P 32 16.1727 115 0.03 100
IV.SACS.HHZ. 2023-12-06T20:01:40.49 0.1 undecidable manual P 311 10.2786 126 0.37 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MGAB.HHN. ML:2.5 0.0030549999999999996 0.32 AML other m 2023-12-06T20:01:41.90
IV.MGAB.HNN. ML:2.5 0.003075 0.3 AML other m 2023-12-06T20:01:41.90
IV.SACS.HNN. ML:2.6 0.005625 0.18 AML other m 2023-12-06T20:01:42.70
IV.SACS.HHN. ML:2.6 0.00618 1.14 AML other m 2023-12-06T20:01:43.71
IV.SACS.HHE. ML:2.5 0.005375 0.28 AML other m 2023-12-06T20:01:43.29
IV.SACS.HNE. ML:2.6 0.0058249999999999994 0.26 AML other m 2023-12-06T20:01:43.15
IV.MGAB.HHE. ML:2.7 0.0047599999999999995 0.56 AML other m 2023-12-06T20:01:44.05
IV.MGAB.HNE. ML:2.7 0.00456 0.54 AML other m 2023-12-06T20:01:44.06
IV.MCIV.CHE. ML:2.2 0.001017 0.48 AML other m 2023-12-06T20:01:47.09
IV.LATE.HHE. ML:2.6 0.002235 0.42 AML other m 2023-12-06T20:01:47.40
TV.SF11.HHN. ML:2.0 0.0005565 0.18 AML other m 2023-12-06T20:01:47.94
TV.SF11.HHE. ML:2.0 0.0005660000000000001 0.42 AML other m 2023-12-06T20:01:48.63
IV.MCIV.CHN. ML:2.1 0.0007304999999999999 1.14 AML other m 2023-12-06T20:01:49.76
IV.LATE.HHN. ML:2.7 0.00329 1 AML other m 2023-12-06T20:01:49.95
IV.MOMA.HNE. ML:2.1 0.000386 0.7 AML other m 2023-12-06T20:01:53.72
IV.MOMA.HHE. ML:2.1 0.0003395 0.16 AML other m 2023-12-06T20:01:55.42
IV.MOMA.HHN. ML:2.1 0.000348 0.34 AML other m 2023-12-06T20:01:56.83
IV.CAFI.HHE. ML:2.2 0.0002935 0.48 AML other m 2023-12-06T20:01:58.27
IV.MOMA.HNN. ML:2.2 0.0004265 0.8 AML other m 2023-12-06T20:01:58.02
IV.BARO.EHE. ML:1.5 0.00006405 0.42 AML other m 2023-12-06T20:01:58.61
IV.BARO.EHN. ML:2.4 0.000593 1.72 AML other m 2023-12-06T20:01:58.99
IV.BARO.HNN. ML:2.5 0.000638 1.72 AML other m 2023-12-06T20:01:58.99
IV.CESX.HHE. ML:1.8 0.000179 1.68 AML other m 2023-12-06T20:01:59.10
IV.CESX.HHN. ML:2.0 0.0002585 0.3 AML other m 2023-12-06T20:01:59.11
IV.CAFI.HHN. ML:2.0 0.0001965 0.84 AML other m 2023-12-06T20:01:59.63
IV.BARO.HNE. ML:2.4 0.0005625 0.4 AML other m 2023-12-06T20:01:59.64
IV.ASSB.HHN. ML:1.9 0.0001805 1.32 AML other m 2023-12-06T20:02:00.75
IV.ARRO.EHN. ML:2.1 0.00022799999999999999 0.9 AML other m 2023-12-06T20:02:00.10
IV.ARRO.EHE. ML:2.1 0.00021799999999999999 0.44 AML other m 2023-12-06T20:02:01.31
IV.ATMI.HHN. ML:2.9 0.001445 1.08 AML other m 2023-12-06T20:02:01.15
IV.ATCC.HNN. ML:2.3 0.000364 0.34 AML other m 2023-12-06T20:02:02.96
IV.ASSB.HHE. ML:2.0 0.000211 1.6 AML other m 2023-12-06T20:02:03.97
IV.MURB.HNN. ML:3.1 0.0020549999999999995 0.26 AML other m 2023-12-06T20:02:03.32
IV.MURB.HHN. ML:3.0 0.002025 0.28 AML other m 2023-12-06T20:02:03.32
IV.ATMI.HHE. ML:2.8 0.0011149999999999999 0.56 AML other m 2023-12-06T20:02:03.48
IV.MURB.HNE. ML:3.1 0.0023 0.3 AML other m 2023-12-06T20:02:03.75
IV.MURB.HHE. ML:3.1 0.002415 0.3 AML other m 2023-12-06T20:02:03.75
IV.ATCC.EHN. ML:2.4 0.000404 1.18 AML other m 2023-12-06T20:02:04.76
IV.ATVO.HHE. ML:2.4 0.000398 0.38 AML other m 2023-12-06T20:02:04.23
IV.TOLF.HHE. ML:2.0 0.000126 0.9 AML other m 2023-12-06T20:02:04.65
IV.ATCC.EHE. ML:2.4 0.00040849999999999995 0.84 AML other m 2023-12-06T20:02:04.92
IV.ATVO.HHN. ML:2.4 0.00039449999999999994 1.62 AML other m 2023-12-06T20:02:04.16
IV.CESI.HHE. ML:1.9 0.00011899999999999999 0.36 AML other m 2023-12-06T20:02:05.76
IV.TOLF.HHN. ML:1.9 0.000119 0.74 AML other m 2023-12-06T20:02:05.58
IV.CESI.HHN. ML:2.0 0.0001625 0.92 AML other m 2023-12-06T20:02:06.46
IV.ATPI.EHN. ML:2.4 0.000323 1.34 AML other m 2023-12-06T20:02:06.17
IV.ATPI.EHE. ML:2.5 0.000413 0.52 AML other m 2023-12-06T20:02:06.31
IV.ATCC.HNE. ML:2.4 0.000438 0.62 AML other m 2023-12-06T20:02:07.42
IV.LNSS.HHN. ML:2.3 0.000242 1.18 AML other m 2023-12-06T20:02:07.78
IV.TRIF.CHE. ML:1.7 0.00005155 0.58 AML other m 2023-12-06T20:02:07.62
IV.LNSS.HHE. ML:2.3 0.00022649999999999998 0.52 AML other m 2023-12-06T20:02:07.69
IV.MML1.EHE. ML:2.0 0.000132 0.5 AML other m 2023-12-06T20:02:07.78
IV.NRCA.HHN. ML:2.0 0.0001245 1.68 AML other m 2023-12-06T20:02:08.98
IV.TRIF.CHN. ML:1.7 0.000055599999999999996 0.54 AML other m 2023-12-06T20:02:08.53
IV.PIEI.HHN. ML:2.1 0.00015000000000000001 0.3 AML other m 2023-12-06T20:02:09.50
IV.PIEI.HHE. ML:2.4 0.0002445 0.4 AML other m 2023-12-06T20:02:09.48
IV.SSFR.HNN. ML:2.5 0.00036950000000000004 1.44 AML other m 2023-12-06T20:02:09.73
IV.MML1.EHN. ML:2.0 0.0001185 1.44 AML other m 2023-12-06T20:02:10.84
IV.NRCA.HHE. ML:2.0 0.00011499999999999999 0.98 AML other m 2023-12-06T20:02:10.69
IV.CRE.HHN. ML:2.2 0.000174 0.48 AML other m 2023-12-06T20:02:10.31
IV.RM33.EHE. ML:2.0 0.00009385 0.94 AML other m 2023-12-06T20:02:10.66
IV.CSNT.HHE. ML:1.7 0.0000477 0.3 AML other m 2023-12-06T20:02:10.73
IV.FDMO.HHE. ML:2.0 0.0000995 1.72 AML other m 2023-12-06T20:02:10.00
IV.CSNT.HHN. ML:1.7 0.000048799999999999994 0.26 AML other m 2023-12-06T20:02:11.23
IV.FDMO.HHN. ML:1.8 0.0000786 0.6 AML other m 2023-12-06T20:02:11.52
IV.SSFR.HNE. ML:2.4 0.000285 0.6 AML other m 2023-12-06T20:02:11.39
IV.RM33.EHN. ML:2.1 0.00010935 1.34 AML other m 2023-12-06T20:02:11.91
IV.FIAM.HHE. ML:2.0 0.0000902 0.56 AML other m 2023-12-06T20:02:12.28
IV.CSP1.EHN. ML:2.4 0.000261 0.76 AML other m 2023-12-06T20:02:12.61
IV.MMO1.EHN. ML:2.3 0.0001645 0.88 AML other m 2023-12-06T20:02:13.64
IV.CSP1.EHE. ML:2.4 0.0002605 0.5 AML other m 2023-12-06T20:02:13.56
IV.FRON.EHN. ML:2.2 0.0001595 1.46 AML other m 2023-12-06T20:02:14.21
IV.CRE.HHE. ML:2.0 0.000108 0.52 AML other m 2023-12-06T20:02:14.36
IV.SMA1.EHE. ML:2.3 0.0001735 0.48 AML other m 2023-12-06T20:02:14.16
IV.SMA1.EHN. ML:2.3 0.0001735 0.44 AML other m 2023-12-06T20:02:14.22
IV.FRON.EHE. ML:2.0 0.00009070000000000001 1.42 AML other m 2023-12-06T20:02:15.14
IV.ARVD.HHN. ML:1.9 0.00007395000000000001 1.16 AML other m 2023-12-06T20:02:15.60
IV.ARVD.HHE. ML:2.0 0.0000811 0.9 AML other m 2023-12-06T20:02:15.80
IV.FIAM.HHN. ML:1.9 0.00007455000000000001 0.42 AML other m 2023-12-06T20:02:16.18
IV.MPAG.EHE. ML:2.0 0.0000823 0.68 AML other m 2023-12-06T20:02:16.85
IV.MMO1.EHE. ML:2.2 0.00013000000000000002 0.84 AML other m 2023-12-06T20:02:19.41
IV.MPAG.EHN. ML:1.9 0.00006759999999999999 0.54 AML other m 2023-12-06T20:02:28.14
IV.ZCCA.HNN. ML:3.4 0.0007529999999999999 1.12 AML other m 2023-12-06T20:02:49.21
IV.ZCCA.HNE. ML:3.3 0.000736 1.14 AML other m 2023-12-06T20:02:49.20
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
Waveforms Seismic signals in miniseed + resp format Download