Earthquake with magnitude of ML 2.3 on date 20-09-2020 and time 05:15:46 (Italy) in region 3 km W Chiusdino (SI)

A magnitude ML 2.3 earthquake occured in region: 3 km W Chiusdino (SI), on

  • 20-09-2020 03:15:46 (UTC)
  • 20-09-2020 05:15:46 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1630, 11.0520 at 7 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
Chiusdino SI 3 1903 1903
Montieri GR 5 1204 3107
Monticiano SI 11 1571 4678
Radicondoli SI 11 914 5592
Castelnuovo di Val di Cecina PI 13 2231 7823
Monterotondo Marittimo GR 16 1371 9194
Massa Marittima GR 18 8375 17569
Roccastrada GR 19 9199 26768
Sovicille SI 20 10116 36884
Casole d'Elsa SI 20 3897 40781

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km SW of Siena (53903 inhabitants)
45 Km N of Grosseto (82087 inhabitants)
67 Km S of Scandicci (50609 inhabitants)
70 Km S of Firenze (382808 inhabitants)
74 Km SE of Livorno (159219 inhabitants)
75 Km W of Arezzo (99543 inhabitants)
80 Km S of Prato (191150 inhabitants)
81 Km SE of Pisa (89158 inhabitants)
87 Km S of Pistoia (90315 inhabitants)
88 Km SE of Lucca (89046 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 2.3 2020-09-20
03:15:46
43.1627 11.0517 7 2021-02-26
14:55:56
Bollettino Sismico Italiano INGV 83192841
Reviewed
Rev100
ML 2.2 2020-09-20
03:15:46
43.1703 11.0565 8 2020-09-20
03:28:00
Sala Sismica INGV-Roma 83043751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-20 03:15:46 ± 0.05
Latitude 43.1627 ± 0.0027
Longitude 11.0517 ± 0.0037
Depth (km) 7 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 83192841

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 285
Semi-minor axis of confidence ellipse (meter) 283
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 16
Circular confidence region, given by single value of horizontal uncertainty (meter) 280.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 46
Number of associated phases, regardless of their use for origin computation 66
Number of defining phases 66
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.08993
Epicentral distance of station farthest from the epicenter (degree) 1.57201
Number of stations at which the event was observed 54
Number of stations from which data was used for origin computation 54
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations 76
Type of magnitude ML
Reference to an origin 83043751
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-20 03:28:00

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 88
Type of magnitude ML
Reference to an origin 83192841
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-09-24 09:57:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2020-09-20T03:16:14.47 0.3 undecidable manual P 92 174.492 50 -0.5 0
IV.FDMO.HHZ. 2020-09-20T03:16:13.16 0.3 undecidable manual P 94 165.5121 50 -0.42 0
IV.MAON.HHZ. 2020-09-20T03:16:12.07 0.6 undecidable manual S 175 81.7515 50 0.8 12
IV.SSFR.HHZ. 2020-09-20T03:16:10.32 0.3 undecidable manual P 77 142.9458 50 0.21 0
IV.ZCCA.HHZ. 2020-09-20T03:16:10.14 0.6 undecidable manual P 357 131.9679 50 1.73 0
IV.TOLF.HHZ. 2020-09-20T03:16:10.26 0.3 undecidable manual P 147 144.3444 50 -0.07 0
IV.BRIS.HHZ. 2020-09-20T03:16:09.83 1.0 undecidable manual P 26 130.9689 50 1.56 0
IV.BARO.EHZ. 2020-09-20T03:16:08.67 0.6 undecidable manual P 141 130.1697 50 0.54 0
IV.ASSB.HHZ. 2020-09-20T03:16:08.70 0.3 undecidable manual P 95 130.869 50 0.46 0
IV.CPGN.EHZ. 2020-09-20T03:16:08.72 0.3 undecidable manual P 55 124.2867 50 1.49 0
IV.ATCC.EHZ. 2020-09-20T03:16:08.44 0.3 undecidable manual P 88 128.4714 50 0.56 0
IV.MOMA.HHZ. 2020-09-20T03:16:08.38 0.3 undecidable manual P 107 129.4704 50 0.35 0
IV.PE3.EHZ. 2020-09-20T03:16:08.91 0.6 undecidable manual P 63 130.5693 50 0.71 0
IV.MURB.HHZ. 2020-09-20T03:16:07.68 0.3 undecidable manual P 84 119.5914 50 1.17 0
MN.VLC.HHZ. 2020-09-20T03:16:07.77 0.3 undecidable manual P 334 122.7882 50 0.77 0
IV.LMD.HHZ. 2020-09-20T03:16:06.60 0.3 undecidable manual P 27 114.2967 50 0.9 0
TV.SF14.HHE. 2020-09-20T03:16:06.03 0.6 undecidable manual S 135 64.2912 50 -0.59 36
IV.FNVD.HHZ. 2020-09-20T03:16:06.31 0.3 undecidable manual P 3 111.5994 50 1.02 0
IV.ATPI.EHZ. 2020-09-20T03:16:06.30 0.6 undecidable manual P 73 113.5974 50 0.71 0
IV.PARC.HHZ. 2020-09-20T03:16:05.65 0.3 undecidable manual P 60 109.8123 50 0.65 0
IV.ATVO.HHZ. 2020-09-20T03:16:05.87 0.3 undecidable manual P 77 112.0989 50 0.51 0
TV.SF13.HHE. 2020-09-20T03:16:05.57 0.3 undecidable manual S 129 59.7957 50 0.14 67
TV.SF04.EHZ. 2020-09-20T03:16:05.68 0.6 undecidable manual S 126 61.2942 50 -0.14 43
IV.RONT.HHZ. 2020-09-20T03:16:04.18 0.3 undecidable manual P 18 97.125 50 1.13 0
GU.CARD.HHZ. 2020-09-20T03:16:04.73 0.3 undecidable manual P 335 106.116 50 0.29 0
TV.SF01.EHZ. 2020-09-20T03:16:04.64 0.6 undecidable manual S 133 56.8986 50 -0.01 48
IV.ATMI.HHZ. 2020-09-20T03:16:04.13 0.6 undecidable manual P 79 100.122 50 0.62 0
IV.BADI.EHZ. 2020-09-20T03:16:04.51 0.6 undecidable manual P 68 103.6185 50 0.46 0
IV.SEI.HHZ. 2020-09-20T03:16:04.44 0.1 undecidable manual P 14 101.9202 50 0.65 0
IV.SSP9.EHZ. 2020-09-20T03:16:04.06 0.1 negative manual P 62 98.3238 50 0.83 0
IV.BDI.HHZ. 2020-09-20T03:16:04.85 0.1 undecidable manual P 340 106.4157 50 0.38 0
IV.MOCL.EHZ. 2020-09-20T03:16:03.09 0.3 undecidable manual P 6 94.0392 50 0.52 2
IV.ARCI.HHZ. 2020-09-20T03:16:02.24 0.6 undecidable manual S 135 48.7179 50 -0.21 49
IV.RINC.HHZ. 2020-09-20T03:16:02.69 0.1 undecidable manual P 29 91.8414 50 0.45 6
IV.ASQU.HHZ. 2020-09-20T03:16:02.80 0.1 positive manual P 40 92.0412 50 0.54 5
IV.CRE.HHZ. 2020-09-20T03:16:02.17 0.3 undecidable manual P 55 88.4448 50 0.46 8
IV.MPPT.EHZ. 2020-09-20T03:16:01.92 0.1 undecidable manual P 2 88.245 50 0.25 12
IV.RUFI.EHZ. 2020-09-20T03:16:01.22 0.3 undecidable manual P 26 83.4498 50 0.28 17
IV.MGAB.HHZ. 2020-09-20T03:16:01.64 0.6 undecidable manual P 108 90.3429 50 -0.36 4
IV.MAON.HHZ. 2020-09-20T03:16:01.24 0.3 undecidable manual P 175 81.7515 50 0.57 19
IV.LATE.HHZ. 2020-09-20T03:16:01.25 0.6 undecidable manual P 135 86.247 50 -0.13 8
IV.CASP.HHZ. 2020-09-20T03:16:00.61 0.6 undecidable manual S 200 43.9227 50 -0.58 44
IV.CSNT.HHZ. 2020-09-20T03:15:59.54 0.6 undecidable manual S 29 39.4272 50 -0.45 46
IV.CRMI.HHZ. 2020-09-20T03:15:59.03 0.3 undecidable manual P 355 70.4739 50 0.09 48
IV.PII.HHZ. 2020-09-20T03:15:59.71 0.1 undecidable manual P 326 75.1692 50 0.05 49
VR.VRG02.HH2. 2020-09-20T03:15:59.76 0.3 undecidable manual P 322 69.7746 50 0.93 38
IV.CAFI.HHZ. 2020-09-20T03:15:59.97 0.1 undecidable manual P 76 76.1682 50 0.15 45
TV.SF03.EHZ. 2020-09-20T03:15:58.27 0.3 undecidable manual P 128 65.0904 50 0.16 58
TV.SF14.HHE. 2020-09-20T03:15:58.04 0.3 undecidable manual P 135 64.2912 50 0.06 61
IV.MCIV.CHZ. 2020-09-20T03:15:58.70 0.3 undecidable manual P 130 66.1893 50 0.42 53
TV.SF04.EHZ. 2020-09-20T03:15:57.54 0.3 undecidable manual P 126 61.2942 50 0.02 66
TV.SF13.HHE. 2020-09-20T03:15:57.36 0.3 undecidable manual P 129 59.7957 50 0.06 68
IV.MAGO.CHZ. 2020-09-20T03:15:57.85 1.0 undecidable manual S 291 34.1436 102 -0.45 23
TV.SF01.EHZ. 2020-09-20T03:15:57.29 0.3 undecidable manual P 133 56.8986 50 0.44 66
TV.SF11.HHE. 2020-09-20T03:15:57.33 0.3 undecidable manual P 122 60.3951 50 -0.06 67
IV.ARCI.HHZ. 2020-09-20T03:15:55.76 0.3 undecidable manual P 135 48.7179 50 0.18 73
IV.OSSC.HNE. 2020-09-20T03:15:54.48 0.1 undecidable manual P 21 43.0236 50 -0.22 97
IV.CASP.HHZ. 2020-09-20T03:15:54.61 0.3 undecidable manual P 200 43.9227 50 -0.24 72
IV.RIBO.EHZ. 2020-09-20T03:15:54.23 0.6 undecidable manual S 181 23.6541 107 -0.57 44
IV.CSNT.HHZ. 2020-09-20T03:15:53.87 0.1 positive manual P 29 39.4272 50 -0.29 96
IV.MAGO.CHZ. 2020-09-20T03:15:53.01 0.1 negative manual P 291 34.1436 102 -0.17 98
IV.TRIF.CHZ. 2020-09-20T03:15:51.38 0.3 undecidable manual S 246 13.1757 119 -0.06 75
IV.RIBO.EHZ. 2020-09-20T03:15:51.23 0.1 undecidable manual P 181 23.6541 107 0.07 100
IV.FROS.CHZ. 2020-09-20T03:15:50.17 0.6 undecidable manual S 58 9.9789 127 -0.32 47
IV.TRIF.CHZ. 2020-09-20T03:15:49.69 0.3 undecidable manual P 246 13.1757 119 0.47 69
IV.FROS.CHZ. 2020-09-20T03:15:48.81 0.3 undecidable manual P 58 9.9789 127 0.14 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FROS.CHE. ML:3.6 0.05465835 0.176 AML other m 2020-09-20T03:15:50.73
IV.FROS.CHN. ML:3.5 0.04869301 0.32 AML other m 2020-09-20T03:15:51.34
IV.TRIF.CHE. ML:3.2 0.017332515 0.176 AML other m 2020-09-20T03:15:52.58
IV.TRIF.CHN. ML:3.1 0.013675419999999999 0.2 AML other m 2020-09-20T03:15:52.90
IV.RIBO.EHE.01 ML:2.7 0.0033524585 1.76 AML other m 2020-09-20T03:15:56.97
IV.CSNT.HHN. ML:2.5 0.001113836 1.7616 AML other m 2020-09-20T03:15:59.10
IV.CSNT.HHE. ML:2.3 0.0007911184 0.32 AML other m 2020-09-20T03:15:59.58
IV.MAGO.CHE. ML:2.2 0.0007867976999999999 0.128 AML other m 2020-09-20T03:15:59.55
IV.MAGO.CHN. ML:2.4 0.0009587318 0.368 AML other m 2020-09-20T03:16:01.15
IV.ARCI.HHN. ML:2.3 0.0005337396 0.2192 AML other m 2020-09-20T03:16:02.38
IV.ARCI.HNN. ML:2.4 0.0007697318500000001 0.0992 AML other m 2020-09-20T03:16:02.39
IV.ARCI.HNE. ML:2.5 0.0008236779 0.1904 AML other m 2020-09-20T03:16:02.88
IV.ARCI.HHE. ML:2.5 0.0008821664 0.2 AML other m 2020-09-20T03:16:02.88
TV.SF01.EHN. ML:2.6 0.00085344305 0.2592 AML other m 2020-09-20T03:16:05.22
TV.SF01.EHE. ML:2.7 0.0012420975000000001 0.32 AML other m 2020-09-20T03:16:05.36
TV.SF04.EHE. ML:2.7 0.0010577352 0.1808 AML other m 2020-09-20T03:16:06.51
TV.SF04.EHN. ML:2.7 0.00106408065 0.1808 AML other m 2020-09-20T03:16:07.04
IV.MCIV.CHN. ML:2.1 0.00024585060000000003 0.192 AML other m 2020-09-20T03:16:08.64
IV.CRMI.HNE. ML:2.1 0.00020469179999999998 0.36 AML other m 2020-09-20T03:16:09.49
IV.CRMI.HHE. ML:1.8 0.0001064044 0.3808 AML other m 2020-09-20T03:16:09.49
IV.MCIV.CHE. ML:2.0 0.00019889289999999997 0.384 AML other m 2020-09-20T03:16:09.69
IV.PII.HHN. ML:2.4 0.00040928375 1.7392 AML other m 2020-09-20T03:16:10.00
IV.PII.HHE. ML:2.4 0.00038507475000000005 0.24 AML other m 2020-09-20T03:16:11.17
IV.CRMI.HHN. ML:1.7 0.000081546415 0.4192 AML other m 2020-09-20T03:16:11.28
IV.CRMI.HNN. ML:2.2 0.00023372144999999998 0.4592 AML other m 2020-09-20T03:16:11.28
IV.MAON.HNN. ML:2.6 0.00052095945 0.2288 AML other m 2020-09-20T03:16:12.68
IV.MAON.HHE. ML:2.8 0.0009792703 0.2192 AML other m 2020-09-20T03:16:12.59
IV.MAON.HNE. ML:2.8 0.0008993817 0.2096 AML other m 2020-09-20T03:16:12.60
IV.MAON.HHN. ML:2.6 0.0005450532000000001 0.2208 AML other m 2020-09-20T03:16:13.34
IV.CAFI.HNE. ML:2.2 0.00023779325 0.5312 AML other m 2020-09-20T03:16:13.28
IV.RUFI.EHN. ML:2.4 0.00030601265 1.52 AML other m 2020-09-20T03:16:13.85
IV.CAFI.HHN. ML:2.2 0.00021202784999999999 0.68 AML other m 2020-09-20T03:16:13.51
IV.CAFI.HHE. ML:2.0 0.00016690470000000002 0.4 AML other m 2020-09-20T03:16:13.69
IV.ASQU.HHE. ML:2.3 0.00021639295 0.3392 AML other m 2020-09-20T03:16:15.22
IV.RINC.HHE. ML:2.3 0.00023687609999999997 0.3408 AML other m 2020-09-20T03:16:15.51
IV.CAFI.HNN. ML:2.1 0.0001874713 1.0304 AML other m 2020-09-20T03:16:15.05
IV.RUFI.EHE. ML:2.4 0.0003317007 0.92 AML other m 2020-09-20T03:16:16.06
IV.CRE.HHN. ML:2.3 0.00025329045000000003 0.4 AML other m 2020-09-20T03:16:16.60
IV.MOCL.EHE. ML:2.1 0.00012980130000000002 0.28 AML other m 2020-09-20T03:16:17.10
IV.CRE.HHE. ML:2.3 0.00025822050000000004 0.44 AML other m 2020-09-20T03:16:17.47
IV.MPPT.EHN. ML:2.0 0.00012131643 0.36 AML other m 2020-09-20T03:16:17.30
IV.RINC.HHN. ML:2.3 0.00020879285 0.52 AML other m 2020-09-20T03:16:17.93
IV.LATE.HHE. ML:2.3 0.0002389288 1.44 AML other m 2020-09-20T03:16:17.01
IV.LATE.HHN. ML:2.5 0.00036445205000000004 0.4208 AML other m 2020-09-20T03:16:18.24
IV.MOCL.EHN. ML:2.3 0.00021271995 0.32 AML other m 2020-09-20T03:16:18.32
IV.MPPT.EHE. ML:2.1 0.00014219795 1.4 AML other m 2020-09-20T03:16:18.08
IV.SSP9.EHE. ML:2.2 0.000144239135 0.4784 AML other m 2020-09-20T03:16:19.55
IV.ATMI.HHE. ML:2.4 0.00027351325 0.36 AML other m 2020-09-20T03:16:19.60
IV.MGAB.HHN. ML:2.0 0.00010475413999999999 0.3392 AML other m 2020-09-20T03:16:19.63
GU.CARD.HHN. ML:2.3 0.00016406209999999998 0.4192 AML other m 2020-09-20T03:16:19.88
IV.ASQU.HHN. ML:2.2 0.00017611219999999998 0.6192 AML other m 2020-09-20T03:16:20.47
IV.MGAB.HHE. ML:2.1 0.0001393924 0.4016 AML other m 2020-09-20T03:16:20.50
IV.SSP9.EHN. ML:2.2 0.00014575695 1.3408 AML other m 2020-09-20T03:16:22.09
IV.ATMI.HHN. ML:2.7 0.00049718845 1.2192 AML other m 2020-09-20T03:16:22.01
IV.SEI.HHE. ML:2.4 0.00026390935 0.44 AML other m 2020-09-20T03:16:22.69
GU.CARD.HHE. ML:2.2 0.00015091475 0.5792 AML other m 2020-09-20T03:16:23.62
IV.SEI.HHN. ML:2.7 0.00052657235 0.52 AML other m 2020-09-20T03:16:23.66
IV.LMD.HHE. ML:2.1 0.000099145515 0.4 AML other m 2020-09-20T03:16:25.37
IV.ATPI.EHN. ML:2.2 0.00013825155 0.5616 AML other m 2020-09-20T03:16:25.54
IV.BDI.HHN. ML:2.1 0.00010276378 0.4 AML other m 2020-09-20T03:16:25.39
MN.VLC.HHE. ML:1.9 0.000054175979999999996 0.72 AML other m 2020-09-20T03:16:25.75
IV.BDI.HNE. ML:2.2 0.00013934595 0.6 AML other m 2020-09-20T03:16:25.94
IV.ATPI.HNN. ML:2.2 0.0001395507 0.5696 AML other m 2020-09-20T03:16:26.23
IV.LMD.HHN. ML:2.0 0.000091605455 0.24 AML other m 2020-09-20T03:16:26.48
IV.ASSB.HHN. ML:1.8 0.00004440685 0.4784 AML other m 2020-09-20T03:16:26.45
IV.ATPI.EHE. ML:2.1 0.00010413001499999999 1.44 AML other m 2020-09-20T03:16:26.20
IV.MURB.HHE. ML:2.5 0.00024331285000000002 1.6592 AML other m 2020-09-20T03:16:27.12
IV.MURB.HNE. ML:2.5 0.00025945374999999997 0.28 AML other m 2020-09-20T03:16:27.12
IV.PARC.HHE. ML:2.0 0.00009100307 1.64 AML other m 2020-09-20T03:16:27.15
IV.PARC.HHN. ML:2.2 0.000117685095 0.36 AML other m 2020-09-20T03:16:27.22
IV.ATVO.HHE. ML:2.1 0.000097988435 0.8208 AML other m 2020-09-20T03:16:27.56
MN.VLC.HHN. ML:1.9 0.000056554974999999995 0.72 AML other m 2020-09-20T03:16:28.07
IV.ATVO.HHN. ML:2.0 0.00009099642 1.4 AML other m 2020-09-20T03:16:27.25
IV.BARO.EHE. ML:2.2 0.00010746961 1.5808 AML other m 2020-09-20T03:16:28.07
IV.BARO.HNE. ML:2.4 0.00015204551 0.6096 AML other m 2020-09-20T03:16:29.07
IV.MURB.HHN. ML:2.6 0.000290829 0.3808 AML other m 2020-09-20T03:16:30.28
IV.MURB.HNN. ML:2.6 0.00027469625 0.48 AML other m 2020-09-20T03:16:30.30
IV.ASSB.HHE. ML:1.7 0.00003163794 0.36 AML other m 2020-09-20T03:16:30.59
IV.ATCC.EHE. ML:2.2 0.00011736595 0.48 AML other m 2020-09-20T03:16:31.48
IV.BARO.EHN. ML:2.4 0.00018389715 1.5392 AML other m 2020-09-20T03:16:31.01
IV.BARO.HNN. ML:2.5 0.0002032957 0.4912 AML other m 2020-09-20T03:16:32.02
IV.TOLF.HHE. ML:2.1 0.000065719595 1.56 AML other m 2020-09-20T03:16:35.89
IV.TOLF.HHN. ML:2.1 0.000071314695 0.4 AML other m 2020-09-20T03:16:35.14
IV.PE3.EHE. ML:2.6 0.00027052085 0.6608 AML other m 2020-09-20T03:16:35.44
IV.ATCC.EHN. ML:2.2 0.00009584535999999999 1.48 AML other m 2020-09-20T03:16:37.81
FR.SMPL.HHN.00 ML:2.1 0.000045247215 0.8192 AML other m 2020-09-20T03:16:39.22
IV.PE3.EHN. ML:2.7 0.00030870375 0.5008 AML other m 2020-09-20T03:16:39.61
FR.SMPL.HHE.00 ML:2.1 0.000047408395000000005 0.64 AML other m 2020-09-20T03:16:40.01
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