Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 08-04-2020 and time 16:12:13 (UTC) in region 3 km W Cetona (SI)

A magnitude ML 2.2 earthquake occured in region: 3 km W Cetona (SI), on

  • 08-04-2020 16:12:13 (UTC)
  • 08-04-2020 18:12:13 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9510, 11.8650 at 6 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.

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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
Cetona SI 3 2755 2755
Sarteano SI 5 4717 7472
San Casciano dei Bagni SI 9 1632 9104
Radicofani SI 10 1097 10201
Chiusi SI 10 8704 18905
Città della Pieve PG 12 7712 26617
Chianciano Terme SI 12 7105 33722
Fabro TR 16 2876 36598
Monteleone d'Orvieto TR 16 1467 38065
Abbadia San Salvatore SI 17 6444 44509
Montepulciano SI 17 14097 58606
Allerona TR 18 1794 60400
Piancastagnaio SI 18 4230 64630
Piegaro PG 18 3669 68299
Paciano PG 19 975 69274
Montegabbione TR 19 1216 70490

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km W of Perugia (166134 inhabitants)
58 Km S of Arezzo (99543 inhabitants)
60 Km SE of Siena (53903 inhabitants)
62 Km NW of Viterbo (67173 inhabitants)
65 Km E of Grosseto (82087 inhabitants)
68 Km W of Foligno (57155 inhabitants)
77 Km NW of Terni (111501 inhabitants)
96 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 2.2 2020-04-08
16:12:13		 42.9507 11.8647 6 2020-07-18
21:08:40		 Bollettino Sismico Italiano INGV 80030111
Reviewed
Rev100 		ML 2.2 2020-04-08
16:12:14		 42.9102 11.8835 11 2020-04-08
16:32:00		 Sala Sismica INGV-Roma 78017551
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-08 16:12:13 ± 0.06
Latitude 42.9507 ± 0.0054
Longitude 11.8647 ± 0.0037
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 80030111

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 541
Semi-minor axis of confidence ellipse (meter) 380
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) 540.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 43
Number of associated phases, regardless of their use for origin computation 64
Number of defining phases 64
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.10702
Epicentral distance of station farthest from the epicenter (degree) 0.97846
Number of stations at which the event was observed 48
Number of stations from which data was used for origin computation 48
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 44
Type of magnitude ML
Reference to an origin 78017551
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-08 16:32:00

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 42
Type of magnitude ML
Reference to an origin 80030111
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-06-09 14:11:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATVO.HHZ. 2020-04-08T16:12:35.30 0.6 undecidable manual S 42 64.8906 50 0.56 40
IV.MURB.HHZ. 2020-04-08T16:12:34.90 0.6 undecidable manual S 57 63.6918 50 0.48 42
IV.EL6.EHZ. 2020-04-08T16:12:32.83 0.6 undecidable manual P 67 108.6135 50 0.16 41
IV.TOLF.HHZ. 2020-04-08T16:12:31.59 1.0 undecidable manual P 174 98.9232 50 0.4 20
IV.ATMI.HHZ. 2020-04-08T16:12:31.90 0.3 undecidable manual S 37 53.6019 50 0.17 68
IV.ASQU.HHZ. 2020-04-08T16:12:30.76 1.0 undecidable manual P 356 94.0392 50 0.33 20
IV.SNTG.HHZ. 2020-04-08T16:12:30.02 0.6 undecidable manual P 68 93.4398 50 -0.32 41
IV.MML1.HNZ. 2020-04-08T16:12:30.27 0.6 undecidable manual P 78 91.5417 50 0.22 42
IV.NARO.HHZ. 2020-04-08T16:12:30.54 1.0 undecidable manual P 38 93.3399 50 0.22 21
IV.FRON.EHZ. 2020-04-08T16:12:30.91 0.6 undecidable manual P 48 93.8394 50 0.52 39
IV.ATVA.EHZ. 2020-04-08T16:12:30.47 0.6 undecidable manual S 43 49.8168 50 -0.25 45
IV.SSFR.HHZ. 2020-04-08T16:12:30.44 1.0 undecidable manual P 54 91.7415 50 0.37 20
IV.CESI.HNZ. 2020-04-08T16:12:29.02 0.6 undecidable manual P 86 84.6486 50 0.04 44
IV.ARRO.EHZ. 2020-04-08T16:12:29.19 0.6 undecidable manual P 119 84.1491 50 0.29 42
IV.ATTE.HHZ. 2020-04-08T16:12:29.90 0.6 undecidable manual S 55 48.2184 50 -0.38 44
IV.PARC.HHZ. 2020-04-08T16:12:29.04 0.6 undecidable manual P 21 83.0502 50 0.3 42
IV.ATSC.EHZ. 2020-04-08T16:12:29.10 0.6 undecidable manual P 51 84.7485 50 0.11 43
IV.PIEI.HHZ. 2020-04-08T16:12:29.01 0.6 undecidable manual P 40 84.5487 50 0.05 44
IV.TRIF.CHZ. 2020-04-08T16:12:28.92 0.6 undecidable manual P 283 80.0643 50 0.64 38
IV.BARO.HNZ. 2020-04-08T16:12:28.30 0.6 undecidable manual P 169 79.4649 50 0.13 43
IV.MAON.HNZ. 2020-04-08T16:12:28.99 0.6 undecidable manual P 226 83.25 50 0.22 42
IV.CRE.HHZ. 2020-04-08T16:12:28.05 0.3 undecidable manual P 5 74.4699 50 0.64 58
IV.CASP.HHZ. 2020-04-08T16:12:28.97 0.6 undecidable manual P 258 83.1501 50 0.22 42
IV.ATBU.EHZ. 2020-04-08T16:12:28.16 0.6 undecidable manual P 43 80.2641 50 -0.15 43
IV.ATFO.HHZ. 2020-04-08T16:12:27.21 0.6 undecidable manual P 51 73.4709 50 -0.05 45
IV.ATPC.HNZ. 2020-04-08T16:12:27.71 0.6 undecidable manual P 39 75.8685 50 0.09 44
IV.CSNT.HHZ. 2020-04-08T16:12:27.20 0.6 undecidable manual P 321 74.2701 50 -0.18 43
IV.TB01.DHZ.01 2020-04-08T16:12:26.14 0.6 undecidable manual P 44 66.4779 50 -0.04 45
IV.TB03.DHZ.01 2020-04-08T16:12:26.17 0.6 undecidable manual P 41 66.6777 50 -0.04 45
IV.LATE.HHZ. 2020-04-08T16:12:26.90 0.6 undecidable manual S 188 37.7289 100 -0.28 45
IV.TB02.DHZ.01 2020-04-08T16:12:26.17 0.6 undecidable manual P 43 64.0914 50 0.36 43
IV.ATCC.EHZ. 2020-04-08T16:12:26.18 0.6 undecidable manual P 67 67.9764 50 -0.23 43
IV.ATPI.EHZ. 2020-04-08T16:12:26.70 0.3 undecidable manual P 38 70.4739 50 -0.1 67
IV.ATMC.EHZ. 2020-04-08T16:12:25.18 0.6 undecidable manual P 26 61.0944 50 -0.17 45
IV.ATVO.HHZ. 2020-04-08T16:12:25.86 0.6 undecidable manual P 42 64.8906 50 -0.08 45
IV.MURB.HHZ. 2020-04-08T16:12:25.54 0.3 undecidable manual P 57 63.6918 50 -0.21 66
IT.GNU.HGZ. 2020-04-08T16:12:25.60 0.6 undecidable manual P 106 59.5959 50 0.48 42
IV.ARCI.HHZ. 2020-04-08T16:12:25.30 0.3 undecidable manual S 251 33.4443 101 -0.43 66
IT.UMBT.HGZ. 2020-04-08T16:12:24.12 0.6 undecidable manual P 45 55.1004 50 -0.31 44
TV.SF14.HHN. 2020-04-08T16:12:24.00 0.3 undecidable manual S 223 29.748 102 -0.46 67
IV.ATLO.EHZ. 2020-04-08T16:12:24.87 0.3 undecidable manual P 47 59.6958 50 -0.26 66
IV.MOMA.HHZ. 2020-04-08T16:12:24.98 0.3 positive manual P 106 59.5959 50 -0.14 67
TV.SF01.EHZ. 2020-04-08T16:12:23.80 0.6 undecidable manual S 238 28.9488 102 -0.39 45
IV.ATMI.HHZ. 2020-04-08T16:12:23.84 0.6 undecidable manual P 37 53.6019 50 -0.36 43
TV.SF13.HHZ. 2020-04-08T16:12:22.70 0.3 undecidable manual S 234 24.753 104 -0.08 73
IV.ATVA.EHZ. 2020-04-08T16:12:22.98 0.1 undecidable manual P 43 49.8168 50 -0.63 80
TV.SF04.EHZ. 2020-04-08T16:12:22.00 0.3 undecidable manual S 233 20.9679 107 0.5 67
IV.MCIV.CHZ. 2020-04-08T16:12:22.90 0.3 undecidable manual S 219 24.4533 105 0.22 71
IV.ATTE.HHZ. 2020-04-08T16:12:22.88 0.1 positive manual P 55 48.2184 50 -0.48 85
TV.SF03.EHE. 2020-04-08T16:12:22.20 0.6 undecidable manual S 222 21.9669 106 0.37 46
IV.LATE.HHZ. 2020-04-08T16:12:21.17 0.3 undecidable manual P 188 37.7289 100 -0.4 66
IV.MGAB.HHZ. 2020-04-08T16:12:21.80 0.3 undecidable manual S 102 20.5683 107 0.43 68
TV.SF11.HHN. 2020-04-08T16:12:20.90 0.3 undecidable manual S 239 17.5713 110 0.49 68
IV.ARCI.HHZ. 2020-04-08T16:12:20.62 0.1 positive manual P 251 33.4443 101 -0.12 95
TV.SF01.EHZ. 2020-04-08T16:12:19.79 0.1 positive manual P 238 28.9488 102 -0.05 97
TV.SF14.HHN. 2020-04-08T16:12:19.67 0.1 positive manual P 223 29.748 102 -0.33 91
TV.SF13.HHZ. 2020-04-08T16:12:19.04 0.1 positive manual P 234 24.753 104 0.01 98
TV.SF04.EHZ. 2020-04-08T16:12:18.36 0.1 positive manual P 233 20.9679 107 0.07 98
IV.SACS.HHZ. 2020-04-08T16:12:18.60 0.3 undecidable manual S 162 11.877 118 0.03 75
IV.MCIV.CHZ. 2020-04-08T16:12:18.80 0.3 undecidable manual P 219 24.4533 105 -0.17 71
TV.SF03.EHE. 2020-04-08T16:12:18.52 0.3 undecidable manual P 222 21.9669 106 0.04 74
IV.MGAB.HHZ. 2020-04-08T16:12:18.07 0.3 undecidable manual P 102 20.5683 107 -0.15 72
TV.SF11.HHN. 2020-04-08T16:12:17.97 0.3 undecidable manual P 239 17.5713 110 0.31 70
IV.SACS.HHZ. 2020-04-08T16:12:16.64 0.1 positive manual P 162 11.877 118 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SACS.HHN. ML:2.8 0.0076528665 0.2944 AML other m 2020-04-08T16:12:19.15
IV.SACS.HNN. ML:2.8 0.00783 0.3 AML other m 2020-04-08T16:12:19.16
IV.SACS.HHE. ML:2.6 0.0053406849999999995 1.4624 AML other m 2020-04-08T16:12:20.13
IV.SACS.HNE. ML:2.6 0.005660849 1.4624 AML other m 2020-04-08T16:12:20.13
IV.MGAB.HHN. ML:2.3 0.00173 0.7 AML other m 2020-04-08T16:12:22.77
TV.SF04.EHN. ML:2.3 0.001685 0.34 AML other m 2020-04-08T16:12:22.37
IV.MGAB.HHE. ML:2.3 0.0014100000000000002 1.54 AML other m 2020-04-08T16:12:22.15
IV.MGAB.HNN. ML:2.3 0.001495 1.4 AML other m 2020-04-08T16:12:23.78
TV.SF04.EHE. ML:2.1 0.0010779999999999997 0.26 AML other m 2020-04-08T16:12:23.51
IV.MCIV.CHN. ML:2.3 0.0011899999999999999 0.8 AML other m 2020-04-08T16:12:24.40
IV.MCIV.CHE. ML:2.1 0.000882 0.26 AML other m 2020-04-08T16:12:25.14
IV.MGAB.HNE. ML:2.3 0.0014100000000000002 0.5 AML other m 2020-04-08T16:12:25.34
IV.ARCI.HHN. ML:1.8 0.00027949999999999996 0.64 AML other m 2020-04-08T16:12:27.03
IV.ARCI.HHE. ML:1.7 0.0002285 0.7 AML other m 2020-04-08T16:12:27.36
TV.SF01.EHN. ML:2.0 0.0005155 0.56 AML other m 2020-04-08T16:12:29.40
TV.SF01.EHE. ML:2.1 0.0006039999999999999 0.66 AML other m 2020-04-08T16:12:29.54
IV.ATTE.HHN. ML:2.3 0.000633 0.76 AML other m 2020-04-08T16:12:31.83
IV.ATTE.HHE. ML:2.2 0.0004575 1.76 AML other m 2020-04-08T16:12:32.94
IV.LATE.HHN. ML:2.3 0.0008145 0.58 AML other m 2020-04-08T16:12:32.49
IV.LATE.HHE. ML:2.2 0.0006885 0.3 AML other m 2020-04-08T16:12:32.67
IV.ATMI.HHN. ML:2.5 0.0007915 0.34 AML other m 2020-04-08T16:12:33.48
IV.ATMI.HHE. ML:2.5 0.000741 0.94 AML other m 2020-04-08T16:12:34.16
IV.MURB.HHN. ML:2.9 0.00158 0.26 AML other m 2020-04-08T16:12:36.19
IV.MURB.HNN. ML:2.9 0.001495 0.24 AML other m 2020-04-08T16:12:36.33
IV.MURB.HHE. ML:2.9 0.0015049999999999998 0.3 AML other m 2020-04-08T16:12:37.00
IV.MURB.HNE. ML:2.9 0.001415 0.32 AML other m 2020-04-08T16:12:37.01
IV.MOMA.HHN. ML:2.1 0.0002375 0.58 AML other m 2020-04-08T16:12:37.23
IV.MOMA.HHE. ML:2.1 0.00024349999999999998 0.46 AML other m 2020-04-08T16:12:38.26
IV.ATVO.HHE. ML:2.5 0.0005529999999999999 0.38 AML other m 2020-04-08T16:12:39.27
IV.ATVO.HHN. ML:2.1 0.00026250000000000004 0.52 AML other m 2020-04-08T16:12:39.29
IV.ATPI.EHN. ML:2.2 0.000238 0.64 AML other m 2020-04-08T16:12:39.80
IV.ATPI.EHE. ML:2.0 0.0001515 0.98 AML other m 2020-04-08T16:12:39.93
IV.ATFO.HHN. ML:2.2 0.00023649999999999998 1.18 AML other m 2020-04-08T16:12:41.36
IV.CRE.HHE. ML:1.8 0.000111 0.5 AML other m 2020-04-08T16:12:42.50
IV.ATFO.HHE. ML:2.2 0.00026149999999999996 0.42 AML other m 2020-04-08T16:12:42.59
IV.PARC.HHN. ML:1.9 0.0001008 1 AML other m 2020-04-08T16:12:43.58
IV.CRE.HHN. ML:2.0 0.0001705 0.82 AML other m 2020-04-08T16:12:43.71
IV.PIEI.HHE. ML:2.0 0.00013215 0.58 AML other m 2020-04-08T16:12:44.85
IV.PIEI.HHN. ML:1.7 0.00006950000000000001 0.36 AML other m 2020-04-08T16:12:45.18
IV.PARC.HHE. ML:2.0 0.0001465 0.52 AML other m 2020-04-08T16:12:45.27
IV.EL6.EHE. ML:2.1 0.00012135000000000001 0.98 AML other m 2020-04-08T16:12:49.80
IV.EL6.EHN. ML:2.3 0.0001785 1.62 AML other m 2020-04-08T16:12:51.90
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