Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 02-05-2017 and time 00:50:57 (Italy) in region 3 km NW Castiglion Fibocchi (AR)

A magnitude ML 2.0 earthquake occured in region: 3 km NW Castiglion Fibocchi (AR), on

  • 01-05-2017 22:50:57 (UTC)
  • 02-05-2017 00:50:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.5530, 11.7540 at 9 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
Castiglion Fibocchi AR 3 2167 2167
Laterina AR 6 3517 5684
Talla AR 6 1062 6746
Capolona AR 9 5438 12184
Subbiano AR 10 6331 18515
Pergine Valdarno AR 11 3162 21677
Loro Ciuffenna AR 11 5819 27496
Castel Focognano AR 13 3149 30645
Terranuova Bracciolini AR 14 12346 42991
Bucine AR 14 10164 53155
Arezzo AR 14 99543 152698
Ortignano Raggiolo AR 14 878 153576
Montevarchi AR 15 24378 177954
Chitignano AR 16 899 178853
Civitella in Val di Chiana AR 17 9121 187974
Bibbiena AR 17 12241 200215
Castelfranco Piandiscò AR 18 9632 209847
San Giovanni Valdarno AR 18 17018 226865
Poppi AR 19 6160 233025

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km NW of Arezzo (99543 inhabitants)
43 Km NE of Siena (53903 inhabitants)
47 Km SE of Firenze (382808 inhabitants)
51 Km E of Scandicci (50609 inhabitants)
64 Km SE of Prato (191150 inhabitants)
71 Km NW of Perugia (166134 inhabitants)
76 Km SW of Cesena (96758 inhabitants)
78 Km SW of Forlì (117913 inhabitants)
79 Km SE of Pistoia (90315 inhabitants)
82 Km S of Faenza (58541 inhabitants)
86 Km SW of Rimini (147750 inhabitants)
89 Km S of Imola (69797 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 2.0 2017-05-01
22:50:57		 43.5533 11.7538 9 2018-07-06
10:38:21		 Bollettino Sismico Italiano INGV 51704321
Reviewed
Rev100 		ML 2.0 2017-05-01
22:50:57		 43.5565 11.7538 10 2017-05-01
22:57:54		 Sala Sismica INGV-Roma 44716991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-05-01 22:50:57 ± 0.1
Latitude 43.5533 ± 0.0036
Longitude 11.7538 ± 0.0050
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 51704321

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 371
Semi-minor axis of confidence ellipse (meter) 247
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 212
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) 54
Number of associated phases, regardless of their use for origin computation 46
Number of defining phases 46
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.15738
Epicentral distance of station farthest from the epicenter (degree) 1.09897
Number of stations at which the event was observed 35
Number of stations from which data was used for origin computation 35
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 64
Type of magnitude ML
Reference to an origin 51704321
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-11-08 11:32:47

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 30
Type of magnitude ML
Reference to an origin 44716991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-05-01 22:57:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2017-05-01T22:51:17.99 0.3 undecidable manual P 118 121.989 50 0.4 57
IV.MOMA.HHZ. 2017-05-01T22:51:15.50 0.6 undecidable manual P 141 106.2159 50 0.34 40
IV.SNTG.HHZ. 2017-05-01T22:51:15.00 0.3 undecidable manual P 109 101.2209 50 0.61 56
IV.APEC.HHZ. 2017-05-01T22:51:14.39 0.6 undecidable manual S 89 53.502 50 0.09 47
IV.PII.HHZ. 2017-05-01T22:51:14.98 0.6 undecidable manual P 281 100.4217 50 0.7 36
IV.ARVD.HHZ. 2017-05-01T22:51:13.83 0.3 undecidable manual P 93 95.7264 50 0.28 62
IV.ATMI.HHZ. 2017-05-01T22:51:13.61 0.3 undecidable manual S 120 48.0186 50 0.78 58
IV.MCIV.HHZ. 2017-05-01T22:51:12.23 0.3 undecidable manual P 184 86.1471 50 0.15 65
IV.SFI.EHZ. 2017-05-01T22:51:11.08 0.6 undecidable manual S 11 39.7269 50 0.48 44
IV.ARCI.HHZ. 2017-05-01T22:51:11.22 0.3 undecidable manual P 196 81.0522 50 -0.06 67
IV.SACS.HHE. 2017-05-01T22:51:11.17 0.1 undecidable manual P 171 79.1652 50 0.18 87
IV.OSSC.HHZ. 2017-05-01T22:51:11.01 0.6 undecidable manual S 266 41.0256 50 0.05 48
TV.SF01.EHZ. 2017-05-01T22:51:11.69 0.3 undecidable manual P 191 83.6496 50 -0.01 67
IV.MGAB.HHZ. 2017-05-01T22:51:10.81 0.3 undecidable manual P 158 76.7676 50 0.19 66
IV.PARC.HHZ. 2017-05-01T22:51:10.45 0.3 undecidable manual S 75 40.3263 50 -0.32 68
IV.BRIS.HHZ. 2017-05-01T22:51:10.88 0.3 undecidable manual P 1 74.4699 50 0.61 59
IV.FRON.EHZ. 2017-05-01T22:51:10.87 0.3 undecidable manual P 93 78.2661 50 0.01 68
IV.CSNT.HHZ. 2017-05-01T22:51:09.67 0.6 undecidable manual S 257 38.3283 50 -0.58 43
IV.MPPT.EHZ. 2017-05-01T22:51:09.74 0.3 undecidable manual P 310 69.5748 50 0.23 66
IV.MOCL.EHZ. 2017-05-01T22:51:09.51 0.3 undecidable manual P 318 67.9764 50 0.24 66
IV.ATFO.HHZ. 2017-05-01T22:51:09.31 0.3 undecidable manual P 107 68.9754 50 -0.12 68
IV.RUFI.EHZ. 2017-05-01T22:51:09.77 0.1 undecidable manual S 328 37.1295 50 -0.16 95
IV.MURB.HHZ. 2017-05-01T22:51:09.84 0.3 undecidable manual P 117 69.9744 50 0.26 66
IV.PIEI.HHZ. 2017-05-01T22:51:08.51 0.3 undecidable manual P 92 62.7927 50 0.03 70
IV.FROS.HHZ. 2017-05-01T22:51:08.76 0.3 undecidable manual P 232 61.494 50 0.49 63
IV.ATTE.HHZ. 2017-05-01T22:51:08.32 0.3 undecidable manual P 129 62.3931 50 -0.09 69
IV.SSP9.EHZ. 2017-05-01T22:51:08.01 0.1 undecidable manual S 86 30.4473 50 -0.12 97
IV.SEI.HHZ. 2017-05-01T22:51:08.90 0.3 undecidable manual P 330 63.9915 50 0.25 66
IV.ASQU.HHZ. 2017-05-01T22:51:07.05 0.6 undecidable manual S 6 27.1506 109 -0.04 49
IV.ATVO.HHZ. 2017-05-01T22:51:07.36 0.3 undecidable manual P 110 55.8996 50 -0.05 70
IV.CAFI.HHZ. 2017-05-01T22:51:07.22 0.1 undecidable manual S 145 30.1476 50 -0.85 77
IV.LMD.HHZ. 2017-05-01T22:51:07.60 0.3 undecidable manual P 356 58.2972 50 -0.17 68
IV.APEC.HHZ. 2017-05-01T22:51:07.10 0.1 undecidable manual P 89 53.502 50 0.05 94
IV.ATMI.HHZ. 2017-05-01T22:51:06.34 0.1 undecidable manual P 120 48.0186 50 0.15 93
IV.ATPI.EHZ. 2017-05-01T22:51:06.92 0.3 undecidable manual P 102 53.4021 50 -0.1 70
IV.RUFI.EHZ. 2017-05-01T22:51:04.21 0.1 undecidable manual P 328 37.1295 50 -0.31 92
IV.CSNT.HHZ. 2017-05-01T22:51:04.48 0.1 undecidable manual P 257 38.3283 50 -0.23 93
IV.PARC.HHZ. 2017-05-01T22:51:04.95 0.1 negative manual P 75 40.3263 50 -0.06 96
IV.SFI.EHZ. 2017-05-01T22:51:04.64 0.1 undecidable manual P 11 39.7269 50 -0.27 92
IV.OSSC.HHZ. 2017-05-01T22:51:04.96 0.3 undecidable manual P 266 41.0256 50 -0.15 71
IV.BADI.EHZ. 2017-05-01T22:51:04.78 0.1 undecidable manual P 97 39.7269 50 -0.14 95
IV.CAFI.HHZ. 2017-05-01T22:51:03.00 0.1 undecidable manual P 145 30.1476 50 -0.45 90
IV.CRE.HHZ. 2017-05-01T22:51:03.93 0.6 undecidable manual S 65 17.4714 118 -0.06 50
IV.SSP9.EHZ. 2017-05-01T22:51:03.38 0.1 undecidable manual P 86 30.4473 50 -0.1 97
IV.ASQU.HHZ. 2017-05-01T22:51:02.70 0.1 positive manual P 6 27.1506 109 -0.18 96
IV.CRE.HHZ. 2017-05-01T22:51:01.03 0.1 positive manual P 65 17.4714 118 -0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CRE.HHE. ML:2.0 0.000933 0.24 AML other m 2017-05-01T22:51:04.90
IV.CRE.HHN. ML:2.1 0.0011600000000000002 1.18 AML other m 2017-05-01T22:51:05.21
IV.ASQU.HHE. ML:2.1 0.0006990000000000001 0.32 AML other m 2017-05-01T22:51:07.34
IV.CAFI.HHE. ML:2.2 0.0007925 0.16 AML other m 2017-05-01T22:51:07.72
IV.CAFI.HNE. ML:2.2 0.000727 0.5 AML other m 2017-05-01T22:51:07.72
IV.CAFI.HNN. ML:2.2 0.000888 0.86 AML other m 2017-05-01T22:51:07.37
IV.CAFI.HHN. ML:2.3 0.0009595000000000001 0.88 AML other m 2017-05-01T22:51:07.36
IV.SSP9.EHE. ML:2.2 0.0008060000000000001 0.46 AML other m 2017-05-01T22:51:08.26
IV.ASQU.HHN. ML:1.8 0.0003045 1.48 AML other m 2017-05-01T22:51:09.92
IV.RUFI.EHN. ML:1.8 0.0002505 0.66 AML other m 2017-05-01T22:51:10.62
IV.CSNT.HHN. ML:1.9 0.0002765 0.68 AML other m 2017-05-01T22:51:10.23
IV.SSP9.EHN. ML:2.0 0.0005315 0.54 AML other m 2017-05-01T22:51:10.99
IV.PARC.HHN. ML:2.0 0.00036899999999999997 0.66 AML other m 2017-05-01T22:51:11.40
IV.RUFI.EHE. ML:1.8 0.000232 0.48 AML other m 2017-05-01T22:51:11.50
IV.OSSC.HHN. ML:1.8 0.00020850000000000003 0.6 AML other m 2017-05-01T22:51:11.24
IV.PARC.HHE. ML:1.8 0.0002465 0.38 AML other m 2017-05-01T22:51:11.96
IV.CSNT.HHE. ML:1.6 0.00015200000000000004 0.44 AML other m 2017-05-01T22:51:12.30
IV.MCIV.HHN. ML:1.9 0.0000969 0.2 AML other m 2017-05-01T22:51:13.67
IV.MCIV.HHE. ML:1.8 0.00008215 0.2 AML other m 2017-05-01T22:51:14.01
IV.SFI.EHE. ML:1.7 0.00016749999999999998 0.54 AML other m 2017-05-01T22:51:14.41
IV.ATMI.HHE. ML:2.1 0.000313 0.4 AML other m 2017-05-01T22:51:14.63
IV.APEC.HHN. ML:2.3 0.00044099999999999993 0.32 AML other m 2017-05-01T22:51:15.80
IV.APEC.HHE. ML:2.3 0.00046550000000000004 0.42 AML other m 2017-05-01T22:51:16.10
IV.LMD.HHN. ML:1.9 0.00016700000000000002 0.18 AML other m 2017-05-01T22:51:16.52
IV.ATMI.HHN. ML:2.2 0.0004815 0.32 AML other m 2017-05-01T22:51:16.41
IV.OSSC.HHE. ML:1.5 0.00009784999999999999 0.46 AML other m 2017-05-01T22:51:16.44
IV.LMD.HHE. ML:1.9 0.00017099999999999998 0.6 AML other m 2017-05-01T22:51:17.44
IV.ATPI.EHN. ML:2.0 0.000248 1.26 AML other m 2017-05-01T22:51:17.76
IV.ATPI.EHE. ML:1.8 0.000167 0.42 AML other m 2017-05-01T22:51:17.84
IV.FROS.HHN. ML:2.1 0.00025550000000000003 1.18 AML other m 2017-05-01T22:51:17.97
IV.ATVO.HHE. ML:1.9 0.0001955 0.64 AML other m 2017-05-01T22:51:18.48
IV.ATVO.HHN. ML:2.0 0.00020549999999999998 0.58 AML other m 2017-05-01T22:51:18.85
IV.PIEI.HHE. ML:1.9 0.000143 1.08 AML other m 2017-05-01T22:51:18.19
IV.SFI.EHN. ML:1.6 0.0001375 1.32 AML other m 2017-05-01T22:51:18.77
IV.MOCL.EHN. ML:1.9 0.00014749999999999998 0.18 AML other m 2017-05-01T22:51:20.32
IV.FROS.HHE. ML:2.4 0.0005045 0.44 AML other m 2017-05-01T22:51:20.34
IV.SEI.HHE. ML:2.1 0.000242 0.3 AML other m 2017-05-01T22:51:20.80
IV.SEI.HHN. ML:2.3 0.00034199999999999996 1.4 AML other m 2017-05-01T22:51:20.07
IV.ATFO.HHN. ML:1.8 0.00011899999999999999 0.52 AML other m 2017-05-01T22:51:21.39
IV.MOCL.EHE. ML:1.8 0.00009864999999999999 0.32 AML other m 2017-05-01T22:51:21.16
IV.ATFO.HHE. ML:1.8 0.00010425000000000001 0.18 AML other m 2017-05-01T22:51:21.46
IV.ATTE.HHE. ML:2.0 0.00020549999999999998 0.26 AML other m 2017-05-01T22:51:21.60
IV.ATTE.HHN. ML:1.9 0.0001485 0.3 AML other m 2017-05-01T22:51:21.48
IV.PIEI.HHN. ML:1.6 0.00007835000000000001 1.22 AML other m 2017-05-01T22:51:21.13
IV.FRON.EHN. ML:1.7 0.00006405 0.82 AML other m 2017-05-01T22:51:22.88
IV.MURB.HHN. ML:2.4 0.0003805 1.72 AML other m 2017-05-01T22:51:22.87
IV.MGAB.HHE. ML:2.3 0.00029700000000000006 0.36 AML other m 2017-05-01T22:51:24.04
IV.MGAB.HNE. ML:2.3 0.00027649999999999994 0.34 AML other m 2017-05-01T22:51:24.05
IV.BRIS.HHE. ML:1.9 0.00011275 0.68 AML other m 2017-05-01T22:51:24.43
IV.MGAB.HHN. ML:2.2 0.000251 0.32 AML other m 2017-05-01T22:51:25.17
IV.MGAB.HNN. ML:2.3 0.0002635 0.32 AML other m 2017-05-01T22:51:25.34
IV.ATCC.EHN. ML:1.9 0.000112 0.22 AML other m 2017-05-01T22:51:26.52
IV.BRIS.HHN. ML:1.8 0.00010405000000000001 0.74 AML other m 2017-05-01T22:51:27.70
IV.MURB.HHE. ML:2.2 0.0002535 0.28 AML other m 2017-05-01T22:51:27.90
IV.ATCC.EHE. ML:2.2 0.0001885 0.76 AML other m 2017-05-01T22:51:28.87
IV.FRON.EHE. ML:1.6 0.000054850000000000005 0.5 AML other m 2017-05-01T22:51:31.57
IV.MOMA.HHN. ML:1.8 0.00006155 0.68 AML other m 2017-05-01T22:51:34.62
IV.MOMA.HHE. ML:1.8 0.000059399999999999994 0.52 AML other m 2017-05-01T22:51:36.64
IV.T1218.EHE. ML:2.4 0.00014600000000000003 0.16 AML other m 2017-05-01T22:51:51.76
IV.T1218.EHN. ML:2.6 0.00018295 0.78 AML other m 2017-05-01T22:51:52.07
IV.TERO.HHN. ML:2.4 0.00008815 0.08 AML other m 2017-05-01T22:51:53.92
IV.TERO.HHE. ML:2.1 0.000046700000000000003 0.74 AML other m 2017-05-01T22:51:54.41
IV.FDMO.HHN. ML:2.0 0.0000642 0.22 AML other m 2017-05-01T22:51:54.59
IV.FDMO.HHE. ML:1.7 0.0000375 1.36 AML other m 2017-05-01T22:51:54.16
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
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