Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 20-01-2017 and time 15:03:28 (Italy) in region 6 km SE Pieve Santo Stefano (AR)

A magnitude ML 2.1 earthquake occured in region: 6 km SE Pieve Santo Stefano (AR), on

  • 20-01-2017 14:03:28 (UTC)
  • 20-01-2017 15:03:28 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.6240, 12.0760 at 10 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
Pieve Santo Stefano AR 6 3183 3183
Caprese Michelangelo AR 8 1426 4609
Sansepolcro AR 8 15884 20493
Anghiari AR 9 5638 26131
San Giustino PG 12 11297 37428
Badia Tedalda AR 13 1087 38515
Citerna PG 14 3531 42046
Chiusi della Verna AR 14 2023 44069
Monterchi AR 16 1757 45826
Chitignano AR 16 899 46725
Subbiano AR 17 6331 53056
Borgo Pace PU 18 606 53662
Capolona AR 19 5438 59100
Castel Focognano AR 20 3149 62249
Casteldelci RN 20 407 62656
Verghereto FC 20 1907 64563

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km NE of Arezzo (99543 inhabitants)
59 Km S of Cesena (96758 inhabitants)
63 Km SW of Rimini (147750 inhabitants)
63 Km NW of Perugia (166134 inhabitants)
67 Km S of Forlì (117913 inhabitants)
68 Km E of Firenze (382808 inhabitants)
69 Km E of Siena (53903 inhabitants)
73 Km E of Scandicci (50609 inhabitants)
75 Km W of Pesaro (94582 inhabitants)
75 Km S of Faenza (58541 inhabitants)
80 Km W of Fano (60888 inhabitants)
84 Km E of Prato (191150 inhabitants)
86 Km SE of Imola (69797 inhabitants)
89 Km S of Ravenna (159116 inhabitants)
90 Km NW of Foligno (57155 inhabitants)
99 Km E of Pistoia (90315 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 2.1 2017-01-20
14:03:28		 43.6235 12.0763 10 2018-01-10
09:44:35		 Bollettino Sismico Italiano INGV 50920451
Reviewed
Rev100 		ML 2.1 2017-01-20
14:03:28		 43.6233 12.0742 9 2017-01-20
14:19:51		 Sala Sismica INGV-Roma 39398271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-01-20 14:03:28 ± 0.06
Latitude 43.6235 ± 0.0045
Longitude 12.0763 ± 0.0050
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 50920451

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 507
Semi-minor axis of confidence ellipse (meter) 240
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 215
Circular confidence region, given by single value of horizontal uncertainty (meter) 510.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 75
Number of associated phases, regardless of their use for origin computation 43
Number of defining phases 39
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.72755
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 20
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 19
Type of magnitude ML
Reference to an origin 39398271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-01-20 14:19:51

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 43
Type of magnitude ML
Reference to an origin 50920451
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-10-12 15:07:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RM33.EHZ. 2017-01-20T14:04:15.30 3.0 undecidable manual S 1.38 0
IV.T1299.EHZ. 2017-01-20T14:04:13.08 3.0 undecidable manual S 0.76 0
IV.CESI.HHZ. 2017-01-20T14:03:59.99 3.0 undecidable manual S 0.36 0
IV.NDIM.HNZ. 2017-01-20T14:03:55.65 3.0 negative manual P -0.16 0
IV.SNTG.HHZ. 2017-01-20T14:03:54.28 0.6 undecidable manual S 120 80.7636 50 1.06 31
IV.SSFR.HHZ. 2017-01-20T14:03:48.08 0.3 undecidable manual S 110 60.495 50 0.27 65
IV.LMD.HHZ. 2017-01-20T14:03:47.37 0.3 undecidable manual S 330 58.3971 50 0.12 67
IV.MPAG.EHZ. 2017-01-20T14:03:46.70 0.6 undecidable manual S 89 54.9006 50 0.38 43
IV.MURB.HHZ. 2017-01-20T14:03:46.02 0.3 undecidable manual S 138 53.9016 50 -0.04 69
IV.ATFO.HHZ. 2017-01-20T14:03:45.17 0.3 undecidable manual S 125 49.0176 50 0.42 64
IV.SNTG.HHZ. 2017-01-20T14:03:44.21 1.0 undecidable manual P 120 80.7636 50 1.28 14
IV.NARO.HHZ. 2017-01-20T14:03:42.20 0.6 undecidable manual S 92 40.5261 50 -0.29 45
IV.PE3.EHZ. 2017-01-20T14:03:41.17 0.3 undecidable manual S 76 34.6431 50 0.25 69
IV.SFI.EHZ. 2017-01-20T14:03:41.30 0.6 undecidable manual S 330 36.2415 50 -0.04 48
IV.ATVO.HHZ. 2017-01-20T14:03:41.51 0.3 undecidable manual S 135 37.7289 50 -0.23 68
IV.PIEI.HHZ. 2017-01-20T14:03:41.36 0.3 undecidable manual S 105 38.1285 50 -0.49 65
IV.CAFI.HHZ. 2017-01-20T14:03:40.70 0.6 undecidable manual S 195 33.8439 50 0 48
IV.ATMI.HHZ. 2017-01-20T14:03:40.59 0.3 undecidable manual S 154 35.6421 50 -0.59 63
IV.ASQU.HHZ. 2017-01-20T14:03:39.80 0.6 undecidable manual S 310 29.9478 50 0.13 47
IV.MURB.HHZ. 2017-01-20T14:03:39.59 0.6 undecidable manual P 138 53.9016 50 0.8 37
IV.LMD.HHZ. 2017-01-20T14:03:39.57 0.6 negative manual P 330 58.3971 50 0.09 45
IV.APEC.HHZ. 2017-01-20T14:03:39.50 0.6 undecidable manual S 105 28.5492 50 0.21 47
IV.SSFR.HHZ. 2017-01-20T14:03:39.75 0.1 undecidable manual P 110 60.495 50 -0.05 91
IV.ATFO.HHZ. 2017-01-20T14:03:38.08 0.1 undecidable manual P 125 49.0176 50 0.04 93
IV.MPAG.EHZ. 2017-01-20T14:03:38.87 0.1 undecidable manual P 89 54.9006 50 -0.07 91
IV.BADI.EHZ. 2017-01-20T14:03:36.20 0.6 undecidable manual S 133 18.4704 117 0.12 48
IV.ATVO.HHZ. 2017-01-20T14:03:36.22 0.1 undecidable manual P 135 37.7289 50 -0.08 94
IV.NARO.HHZ. 2017-01-20T14:03:36.36 0.1 undecidable manual P 92 40.5261 50 -0.37 88
IV.ATMI.HHZ. 2017-01-20T14:03:35.98 0.1 undecidable manual P 154 35.6421 50 0 96
IV.CAFI.HHZ. 2017-01-20T14:03:35.74 0.1 undecidable manual P 195 33.8439 50 0.04 96
IV.PE3.EHZ. 2017-01-20T14:03:35.98 0.3 undecidable manual P 76 34.6431 50 0.15 70
IV.SFI.EHZ. 2017-01-20T14:03:35.84 0.1 negative manual P 330 36.2415 50 -0.23 92
IV.CPGN.EHZ. 2017-01-20T14:03:35.15 0.1 undecidable manual P 45 27.75 109 0.4 90
IV.PIEI.HHZ. 2017-01-20T14:03:35.95 0.1 undecidable manual P 105 38.1285 50 -0.41 88
IV.APEC.HHZ. 2017-01-20T14:03:34.91 0.1 negative manual P 105 28.5492 50 0.03 97
IV.PARC.HHZ. 2017-01-20T14:03:34.03 0.3 undecidable manual S 78 13.2756 126 -0.52 67
IV.ASQU.HHZ. 2017-01-20T14:03:34.88 0.1 positive manual P 310 29.9478 50 -0.23 93
IV.BADI.EHZ. 2017-01-20T14:03:33.11 0.1 negative manual P 133 18.4704 117 0.08 97
IV.CRE.HHZ. 2017-01-20T14:03:33.70 0.6 undecidable manual S 267 9.9789 134 0.04 50
IV.SSP9.EHZ. 2017-01-20T14:03:33.00 0.3 undecidable manual S 141 7.0929 143 0.02 75
IV.PARC.HHZ. 2017-01-20T14:03:32.06 0.1 positive manual P 78 13.2756 126 -0.09 98
IV.SSP9.EHZ. 2017-01-20T14:03:31.28 0.1 positive manual P 141 7.0929 143 0.04 100
IV.CRE.HHZ. 2017-01-20T14:03:31.79 0.1 positive manual P 267 9.9789 134 0.15 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SSP9.EHN. ML:2.2 0.0024249999999999996 0.5 AML other m 2017-01-20T14:03:33.18
IV.CRE.HHN. ML:2.5 0.004005 0.24 AML other m 2017-01-20T14:03:33.93
IV.CRE.HHE. ML:2.0 0.001355 1.82 AML other m 2017-01-20T14:03:34.98
IV.SSP9.EHE. ML:2.1 0.0020299999999999997 0.3 AML other m 2017-01-20T14:03:34.18
IV.PARC.HHE. ML:2.4 0.0028049999999999998 0.3 AML other m 2017-01-20T14:03:34.39
IV.PARC.HHN. ML:2.8 0.006915 0.3 AML other m 2017-01-20T14:03:34.38
IV.BADI.EHE. ML:0.9 0.00005765 0.9 AML other m 2017-01-20T14:03:39.54
IV.BADI.EHN. ML:1.7 0.0004335 1.52 AML other m 2017-01-20T14:03:39.01
IV.APEC.HHN. ML:2.4 0.0012549999999999998 1.5 AML other m 2017-01-20T14:03:40.02
IV.APEC.HHE. ML:2.2 0.0007849999999999999 0.14 AML other m 2017-01-20T14:03:40.17
IV.CPGN.HNN. ML:2.0 0.0006355 0.48 AML other m 2017-01-20T14:03:41.20
IV.CPGN.EHE. ML:2.2 0.0007515000000000001 0.32 AML other m 2017-01-20T14:03:41.20
IV.CAFI.HHE. ML:1.8 0.00028300000000000005 0.66 AML other m 2017-01-20T14:03:41.11
IV.ASQU.HHN. ML:1.8 0.0002715 1.34 AML other m 2017-01-20T14:03:41.19
IV.PE3.EHN. ML:0.7 0.000020549999999999998 1.7 AML other m 2017-01-20T14:03:41.06
IV.PE3.EHE. ML:3.0 0.00432 1.64 AML other m 2017-01-20T14:03:42.07
IV.PIEI.HHE. ML:2.1 0.00045 0.86 AML other m 2017-01-20T14:03:42.10
IV.CPGN.HNE. ML:2.2 0.0008209999999999999 0.3 AML other m 2017-01-20T14:03:42.28
IV.PIEI.HHN. ML:1.8 0.000242 0.44 AML other m 2017-01-20T14:03:42.51
IV.CPGN.EHN. ML:2.2 0.0008129999999999999 0.82 AML other m 2017-01-20T14:03:42.28
IV.NARO.HHE. ML:2.0 0.0003105 0.16 AML other m 2017-01-20T14:03:42.74
IV.NARO.HHN. ML:2.0 0.0003205 0.18 AML other m 2017-01-20T14:03:43.13
IV.ATVO.HHE. ML:1.9 0.000308 1.26 AML other m 2017-01-20T14:03:43.15
IV.CAFI.HHN. ML:1.6 0.00016700000000000002 0.56 AML other m 2017-01-20T14:03:43.94
IV.ASQU.HHE. ML:1.8 0.00029299999999999997 0.36 AML other m 2017-01-20T14:03:44.35
IV.SFI.EHN. ML:1.8 0.000245 0.48 AML other m 2017-01-20T14:03:44.98
IV.SFI.EHE. ML:1.8 0.00023400000000000002 0.42 AML other m 2017-01-20T14:03:45.07
IV.ATVO.HHN. ML:1.9 0.0003085 0.68 AML other m 2017-01-20T14:03:45.03
IV.ATFO.HHE. ML:2.0 0.0002665 0.46 AML other m 2017-01-20T14:03:46.70
IV.ATFO.HHN. ML:1.9 0.00021150000000000002 0.22 AML other m 2017-01-20T14:03:47.15
IV.ATMI.HHE. ML:2.1 0.00048049999999999997 0.52 AML other m 2017-01-20T14:03:47.20
IV.ATMI.HHN. ML:2.0 0.000437 0.42 AML other m 2017-01-20T14:03:47.73
IV.LMD.HHE. ML:1.9 0.000163 0.2 AML other m 2017-01-20T14:03:48.78
IV.SSFR.HHN. ML:2.4 0.000583 0.16 AML other m 2017-01-20T14:03:49.93
IV.SSFR.HNN. ML:2.6 0.000758 1.4 AML other m 2017-01-20T14:03:49.93
IV.MURB.HHN. ML:2.3 0.0004935 0.84 AML other m 2017-01-20T14:03:50.94
IV.SSFR.HHE. ML:2.4 0.0005470000000000001 0.22 AML other m 2017-01-20T14:03:51.67
IV.SSFR.HNE. ML:2.4 0.0005965 0.22 AML other m 2017-01-20T14:03:51.56
IV.LMD.HHN. ML:1.7 0.00011740000000000001 0.7 AML other m 2017-01-20T14:03:52.22
IV.MURB.HHE. ML:2.3 0.0005325 1.76 AML other m 2017-01-20T14:03:53.09
IV.MURB.HNN. ML:2.3 0.00047299999999999995 0.88 AML other m 2017-01-20T14:03:53.26
IV.MURB.HNE. ML:2.3 0.0004815 1.1 AML other m 2017-01-20T14:03:54.67
IV.SNTG.HHN. ML:1.8 0.0000902 0.42 AML other m 2017-01-20T14:04:00.59
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