Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 25-02-2013 and time 16:11:58 (UTC) in region 7 km NE Sansepolcro (AR)

A magnitude ML 2.0 earthquake occured in region: 7 km NE Sansepolcro (AR), on

  • 25-02-2013 16:11:58 (UTC)
  • 25-02-2013 17:11:58 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.6260, 12.1830 at 8 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
Sansepolcro AR 7 15884 15884
San Giustino PG 9 11297 27181
Badia Tedalda AR 9 1087 28268
Borgo Pace PU 10 606 28874
Pieve Santo Stefano AR 12 3183 32057
Mercatello sul Metauro PU 13 1378 33435
Sestino AR 13 1355 34790
Anghiari AR 14 5638 40428
Citerna PG 15 3531 43959
Caprese Michelangelo AR 16 1426 45385
Monterchi AR 17 1757 47142
Casteldelci RN 19 407 47549
Belforte all'Isauro PU 19 769 48318
Sant'Angelo in Vado PU 19 4133 52451
Città di Castello PG 19 39913 92364

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km NE of Arezzo (99543 inhabitants)
57 Km S of Cesena (96758 inhabitants)
57 Km SW of Rimini (147750 inhabitants)
60 Km N of Perugia (166134 inhabitants)
67 Km W of Pesaro (94582 inhabitants)
67 Km S of Forlì (117913 inhabitants)
72 Km W of Fano (60888 inhabitants)
76 Km E of Firenze (382808 inhabitants)
77 Km E of Siena (53903 inhabitants)
77 Km SE of Faenza (58541 inhabitants)
82 Km E of Scandicci (50609 inhabitants)
86 Km NW of Foligno (57155 inhabitants)
88 Km S of Ravenna (159116 inhabitants)
89 Km SE of Imola (69797 inhabitants)
92 Km E of Prato (191150 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 2013-02-25
16:11:58		 43.6258 12.1832 8 2015-01-20
11:22:44		 Bollettino Sismico Italiano INGV 5461971
Reviewed
Rev100 		ML 2.0 2013-02-25
16:11:58		 43.6188 12.1902 9 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 2995471
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2013-02-25 16:11:58 ± 0.05
Latitude 43.6258 ± 0.0027
Longitude 12.1832 ± 0.0025
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 5461971

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 273
Semi-minor axis of confidence ellipse (meter) 212
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 194
Circular confidence region, given by single value of horizontal uncertainty (meter) 270.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 88
Number of associated phases, regardless of their use for origin computation 60
Number of defining phases 60
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) 0.04587
Epicentral distance of station farthest from the epicenter (degree) 0.88223
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 32
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 29
Type of magnitude ML
Reference to an origin 2995471
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2013-02-25 16:17:44

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 28
Type of magnitude ML
Reference to an origin 5461971
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2015-01-15 13:06:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2013-02-25T16:12:22.40 0.1 undecidable manual S 149 75.2691 50 0.47 80
IV.CSNT.HHZ. 2013-02-25T16:12:21.47 0.1 undecidable manual S 257 73.7706 50 -0.07 88
IV.SNTG.HHZ. 2013-02-25T16:12:21.36 0.1 undecidable manual S 124 73.5708 50 -0.12 87
IV.ATCC.EHZ. 2013-02-25T16:12:18.27 0.1 undecidable manual S 143 61.1943 50 0.09 90
IV.ARVD.HHZ. 2013-02-25T16:12:18.83 0.3 undecidable manual S 103 62.5929 50 0.28 64
IV.RUFI.EHZ. 2013-02-25T16:12:17.70 0.1 undecidable manual S 294 58.8966 50 0.13 89
IV.FOSV.EHZ. 2013-02-25T16:12:17.77 0.1 undecidable manual S 128 59.2962 50 0.1 90
IV.SSFR.HHZ. 2013-02-25T16:12:16.12 0.1 undecidable manual S 113 52.6029 50 0.25 88
IV.MURB.HHZ. 2013-02-25T16:12:15.30 0.1 undecidable manual S 146 48.7179 50 0.44 85
IV.FROS.HHZ. 2013-02-25T16:12:15.50 0.1 undecidable manual P 241 94.7385 50 0.35 79
IV.FDMO.HHZ. 2013-02-25T16:12:15.64 0.1 undecidable manual P 132 97.9242 50 0 85
IV.ATTE.HHZ. 2013-02-25T16:12:15.03 0.1 undecidable manual S 164 49.4172 50 0 93
IV.MPAG.EHZ. 2013-02-25T16:12:14.10 0.1 undecidable manual S 89 46.3203 50 -0.09 92
IV.FSSB.HHZ. 2013-02-25T16:12:14.80 0.1 undecidable manual S 81 48.2184 50 0.08 92
IV.FRON.EHZ. 2013-02-25T16:12:13.93 0.1 undecidable manual S 105 45.2214 50 0.01 94
IV.ATFO.HHZ. 2013-02-25T16:12:13.00 0.1 undecidable manual S 132 42.4242 50 -0.18 91
IV.CSNT.HHZ. 2013-02-25T16:12:12.18 0.1 undecidable manual P 257 73.7706 50 0.27 84
IV.ASSB.HHZ. 2013-02-25T16:12:12.57 0.1 undecidable manual P 149 75.2691 50 0.43 81
IV.SNTG.HHZ. 2013-02-25T16:12:12.07 0.1 undecidable manual P 124 73.5708 50 0.19 86
IV.MGAB.HHZ. 2013-02-25T16:12:12.77 0.1 undecidable manual P 184 79.365 50 0 88
IV.ASQU.HHZ. 2013-02-25T16:12:11.50 0.1 undecidable manual S 301 36.8298 50 -0.18 92
IV.CAFI.HHZ. 2013-02-25T16:12:11.70 0.1 undecidable manual S 208 37.2294 50 -0.09 94
IV.ATLO.EHZ. 2013-02-25T16:12:11.80 0.1 undecidable manual S 152 38.9277 50 -0.43 87
IV.ATVO.HHZ. 2013-02-25T16:12:10.20 0.1 undecidable manual S 146 32.4453 104 -0.19 92
IV.ARVD.HHZ. 2013-02-25T16:12:10.13 0.1 undecidable manual P 103 62.5929 50 -0.06 90
IV.ATMI.HHZ. 2013-02-25T16:12:10.56 0.1 undecidable manual S 168 33.0447 104 -0.04 95
IV.ATCC.EHZ. 2013-02-25T16:12:10.24 0.1 undecidable manual P 143 61.1943 50 0.26 86
IV.RUFI.EHZ. 2013-02-25T16:12:09.64 0.1 undecidable manual P 294 58.8966 50 0.02 91
IV.PIEI.HHZ. 2013-02-25T16:12:09.30 0.1 undecidable manual S 109 29.9478 105 -0.26 91
IV.FOSV.EHZ. 2013-02-25T16:12:09.79 0.1 undecidable manual P 128 59.2962 50 0.11 90
IV.ATPI.EHZ. 2013-02-25T16:12:08.30 0.1 undecidable manual S 138 26.2515 108 -0.01 97
IV.PE3.EHZ. 2013-02-25T16:12:08.80 0.1 undecidable manual S 73 26.3514 107 0.47 88
IV.SSFR.HHZ. 2013-02-25T16:12:08.42 0.1 undecidable manual P 113 52.6029 50 -0.22 89
IV.MURB.HHZ. 2013-02-25T16:12:08.14 0.1 positive manual P 146 48.7179 50 0.09 92
IV.ATPC.HHZ. 2013-02-25T16:12:08.90 0.1 undecidable manual S 126 27.2505 107 0.24 92
IV.ATTE.HHZ. 2013-02-25T16:12:07.89 0.1 undecidable manual P 164 49.4172 50 -0.27 88
IV.FSSB.HHZ. 2013-02-25T16:12:07.85 0.1 undecidable manual P 81 48.2184 50 -0.13 91
IV.FRON.EHZ. 2013-02-25T16:12:07.17 0.1 undecidable manual P 105 45.2214 50 -0.34 88
IV.MPAG.EHZ. 2013-02-25T16:12:07.40 0.3 negative manual P 89 46.3203 50 -0.28 66
IV.CAFI.HHZ. 2013-02-25T16:12:06.10 0.1 positive manual P 208 37.2294 50 -0.18 92
IV.CDCA.EHZ. 2013-02-25T16:12:06.00 0.1 undecidable manual S 168 18.9699 114 0.04 98
IV.ATLO.EHZ. 2013-02-25T16:12:06.32 0.1 undecidable manual P 152 38.9277 50 -0.22 91
IV.ATFO.HHZ. 2013-02-25T16:12:06.72 0.1 undecidable manual P 132 42.4242 50 -0.37 87
IV.ATMC.EHZ. 2013-02-25T16:12:06.20 0.1 undecidable manual S 178 19.869 113 -0.04 97
IV.ATVO.HHZ. 2013-02-25T16:12:05.26 0.1 undecidable manual P 146 32.4453 104 -0.22 92
IV.ASQU.HHZ. 2013-02-25T16:12:05.84 0.1 undecidable manual P 301 36.8298 50 -0.38 88
IV.ATMI.HHZ. 2013-02-25T16:12:05.35 0.1 undecidable manual P 168 33.0447 104 -0.24 91
IV.PE3.EHZ. 2013-02-25T16:12:04.33 0.1 undecidable manual P 73 26.3514 107 0.04 96
IV.ATPI.EHZ. 2013-02-25T16:12:04.16 0.1 undecidable manual P 138 26.2515 108 -0.12 95
IV.BADI.EHZ. 2013-02-25T16:12:04.60 0.1 undecidable manual S 159 13.7751 121 0.25 94
IV.PIEI.HHZ. 2013-02-25T16:12:04.63 0.1 negative manual P 109 29.9478 105 -0.37 89
IV.CPGN.EHZ. 2013-02-25T16:12:04.21 0.1 undecidable manual P 29 22.3554 110 0.67 82
IV.ATPC.HHZ. 2013-02-25T16:12:04.37 0.1 negative manual P 126 27.2505 107 -0.1 95
IV.ATMC.EHZ. 2013-02-25T16:12:03.12 0.1 positive manual P 178 19.869 113 0.04 97
IV.CDCA.EHZ. 2013-02-25T16:12:02.97 0.1 positive manual P 168 18.9699 114 0.05 97
IV.SSP9.EHZ. 2013-02-25T16:12:02.70 0.1 undecidable manual S 216 7.0929 139 0.15 97
IV.BADI.EHZ. 2013-02-25T16:12:02.15 0.1 undecidable manual P 159 13.7751 121 0.16 96
IV.PARC.HHZ. 2013-02-25T16:12:01.68 0.1 undecidable manual S 60 5.0949 148 -0.46 91
IV.SSP9.EHZ. 2013-02-25T16:12:01.20 0.1 positive manual P 216 7.0929 139 0.25 95
IV.PARC.HHZ. 2013-02-25T16:12:00.68 0.1 undecidable manual P 60 5.0949 148 -0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARVD.HHN. ML:1.8 0.0001185 0.66 AML other m 2013-02-25T16:12:20.00
IV.ARVD.HHE. ML:1.7 0.00010175 1.54 AML other m 2013-02-25T16:12:20.92
IV.ASQU.HHN. ML:1.8 0.00023649999999999998 0.32 AML other m 2013-02-25T16:12:12.52
IV.ASQU.HHE. ML:1.6 0.0001575 0.48 AML other m 2013-02-25T16:12:17.92
IV.ASSB.HHE. ML:1.8 0.00008690000000000001 0.48 AML other m 2013-02-25T16:12:26.85
IV.ASSB.HHN. ML:1.7 0.0000781 1.34 AML other m 2013-02-25T16:12:26.57
IV.ATCC.EHE. ML:2.1 0.00023099999999999998 0.32 AML other m 2013-02-25T16:12:22.84
IV.ATCC.EHN. ML:2.0 0.0002085 1.48 AML other m 2013-02-25T16:12:23.58
IV.ATFO.HHE. ML:2.1 0.00040300000000000004 0.56 AML other m 2013-02-25T16:12:14.07
IV.ATFO.HHN. ML:2.0 0.00031499999999999996 1.54 AML other m 2013-02-25T16:12:13.71
IV.ATLO.EHN. ML:1.7 0.00016849999999999998 0.88 AML other m 2013-02-25T16:12:13.36
IV.ATLO.EHE. ML:1.7 0.0001905 0.28 AML other m 2013-02-25T16:12:12.92
IV.ATMC.EHE. ML:2.6 0.0032750000000000006 0.1 AML other m 2013-02-25T16:12:06.55
IV.ATMC.EHN. ML:2.4 0.0020499999999999997 0.14 AML other m 2013-02-25T16:12:06.64
IV.ATMI.HHE. ML:2.1 0.0005695 0.28 AML other m 2013-02-25T16:12:11.34
IV.ATMI.HHN. ML:2.1 0.0005765 0.8 AML other m 2013-02-25T16:12:11.84
IV.ATPC.HHE. ML:2.2 0.000943 0.48 AML other m 2013-02-25T16:12:17.53
IV.ATPC.HHN. ML:2.1 0.0007075 0.4 AML other m 2013-02-25T16:12:16.47
IV.ATPI.EHE. ML:1.8 0.00041000000000000005 0.86 AML other m 2013-02-25T16:12:08.40
IV.ATPI.EHN. ML:1.9 0.00047950000000000005 1 AML other m 2013-02-25T16:12:09.31
IV.ATTE.HHE. ML:1.9 0.0002075 0.92 AML other m 2013-02-25T16:12:17.60
IV.ATTE.HHN. ML:1.8 0.0001825 0.54 AML other m 2013-02-25T16:12:16.44
IV.ATVO.HHE. ML:2.2 0.0007050000000000001 0.86 AML other m 2013-02-25T16:12:10.70
IV.ATVO.HHN. ML:2.1 0.000523 0.26 AML other m 2013-02-25T16:12:11.18
IV.BADI.EHE. ML:2.3 0.002385 0.5 AML other m 2013-02-25T16:12:05.26
IV.BADI.EHN. ML:2.3 0.00199 0.74 AML other m 2013-02-25T16:12:05.32
IV.CAFI.HHN. ML:2.0 0.00035850000000000004 0.56 AML other m 2013-02-25T16:12:12.55
IV.CAFI.HHE. ML:2.0 0.00034649999999999997 0.16 AML other m 2013-02-25T16:12:12.57
IV.CDCA.HNE. ML:2.4 0.00204 1.02 AML other m 2013-02-25T16:12:11.25
IV.CDCA.HNN. ML:2.8 0.0054800000000000005 0.08 AML other m 2013-02-25T16:12:06.64
IV.FDMO.HHE. ML:1.6 0.000039 1.58 AML other m 2013-02-25T16:12:36.67
IV.FDMO.HHN. ML:1.6 0.000039099999999999995 1.32 AML other m 2013-02-25T16:12:39.46
IV.FOSV.EHE. ML:1.7 0.0001125 0.6 AML other m 2013-02-25T16:12:27.84
IV.FOSV.EHN. ML:1.6 0.0000882 0.5 AML other m 2013-02-25T16:12:33.30
IV.FRON.EHN. ML:2.1 0.000345 0.82 AML other m 2013-02-25T16:12:15.48
IV.FRON.EHE. ML:1.8 0.000176 0.44 AML other m 2013-02-25T16:12:15.55
IV.FROS.HHE. ML:1.9 0.00008235000000000001 1.14 AML other m 2013-02-25T16:12:23.32
IV.FROS.HHN. ML:2.0 0.00009965 1.58 AML other m 2013-02-25T16:13:28.62
IV.FSSB.HHN. ML:2.4 0.0006305000000000001 1.4 AML other m 2013-02-25T16:12:16.24
IV.FSSB.HHE. ML:2.5 0.0008594999999999999 0.2 AML other m 2013-02-25T16:12:15.66
IV.MGAB.HHN. ML:2.1 0.000193 0.5 AML other m 2013-02-25T16:12:27.67
IV.MGAB.HHE. ML:2.1 0.0001815 0.48 AML other m 2013-02-25T16:12:27.67
IV.MPAG.EHN. ML:1.9 0.000241 0.3 AML other m 2013-02-25T16:12:14.26
IV.MPAG.EHE. ML:1.8 0.000191 0.52 AML other m 2013-02-25T16:12:16.72
IV.MURB.HHE. ML:2.3 0.0005495 0.96 AML other m 2013-02-25T16:12:17.52
IV.MURB.HHN. ML:2.3 0.0005445 1.5 AML other m 2013-02-25T16:12:16.46
IV.PE3.EHE. ML:2.7 0.0029950000000000003 0.32 AML other m 2013-02-25T16:12:09.53
IV.PE3.EHN. ML:2.8 0.00321 0.38 AML other m 2013-02-25T16:12:09.61
IV.PIEI.HHE. ML:2.3 0.0010329999999999998 0.1 AML other m 2013-02-25T16:12:09.99
IV.PIEI.HHN. ML:2.1 0.0006839999999999999 0.06 AML other m 2013-02-25T16:12:09.80
IV.SNTG.HHN. ML:1.8 0.00008774999999999999 0.3 AML other m 2013-02-25T16:12:26.11
IV.SNTG.HHE. ML:1.6 0.00006045 1.44 AML other m 2013-02-25T16:12:28.80
IV.SSFR.HHE. ML:2.4 0.0005745 1.44 AML other m 2013-02-25T16:12:16.73
IV.SSFR.HHN. ML:2.4 0.0007005000000000001 0.2 AML other m 2013-02-25T16:12:17.70
IV.SSP9.EHE. ML:2.1 0.002147 1.08 AML other m 2013-02-25T16:12:04.46
IV.SSP9.EHN. ML:2.1 0.002093 0.46 AML other m 2013-02-25T16:12:04.34
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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