Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 23-12-2014 and time 16:08:13 (Italy) in region 3 km S Sansepolcro (AR)

A magnitude ML 1.6 earthquake occured in region: 3 km S Sansepolcro (AR), on

  • 23-12-2014 15:08:13 (UTC)
  • 23-12-2014 16:08:13 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.5470, 12.1340 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
Sansepolcro AR 3 15884 15884
San Giustino PG 4 11297 27181
Citerna PG 6 3531 30712
Anghiari AR 6 5638 36350
Monterchi AR 7 1757 38107
Monte Santa Maria Tiberina PG 12 1183 39290
Città di Castello PG 13 39913 79203
Pieve Santo Stefano AR 16 3183 82386
Caprese Michelangelo AR 16 1426 83812
Borgo Pace PU 18 606 84418
Badia Tedalda AR 18 1087 85505
Mercatello sul Metauro PU 20 1378 86883

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km E of Arezzo (99543 inhabitants)
53 Km NW of Perugia (166134 inhabitants)
66 Km S of Cesena (96758 inhabitants)
67 Km SW of Rimini (147750 inhabitants)
70 Km E of Siena (53903 inhabitants)
75 Km SW of Pesaro (94582 inhabitants)
75 Km E of Firenze (382808 inhabitants)
76 Km S of Forlì (117913 inhabitants)
79 Km W of Fano (60888 inhabitants)
80 Km E of Scandicci (50609 inhabitants)
80 Km NW of Foligno (57155 inhabitants)
85 Km S of Faenza (58541 inhabitants)
91 Km E of Prato (191150 inhabitants)
96 Km SE of Imola (69797 inhabitants)
97 Km S of Ravenna (159116 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 1.6 2014-12-23
15:08:13		 43.5473 12.1342 9 2015-09-21
09:40:11		 Bollettino Sismico Italiano INGV 18902401
Reviewed
Rev100 		ML 1.6 2014-12-23
15:08:13		 43.5503 12.1382 8 2014-12-23
15:14:55		 Sala Sismica INGV-Roma 15680431
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-12-23 15:08:13 ± 0.05
Latitude 43.5473 ± 0.0027
Longitude 12.1342 ± 0.0037
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 18902401

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 308
Semi-minor axis of confidence ellipse (meter) 138
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 28
Circular confidence region, given by single value of horizontal uncertainty (meter) 310.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 89
Number of associated phases, regardless of their use for origin computation 44
Number of defining phases 44
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.02698
Epicentral distance of station farthest from the epicenter (degree) 0.63492
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 24
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 15680431
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2014-12-23 15:14:55

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 18902401
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-05-05 10:24:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RUFI.EHZ. 2014-12-23T15:08:32.53 0.3 undecidable manual S 303 59.5959 50 0.43 63
IV.ATCC.EHE. 2014-12-23T15:08:31.68 0.3 undecidable manual S 134 57.1983 50 0.2 66
IV.FSSB.HHZ. 2014-12-23T15:08:30.95 0.3 undecidable manual S 72 54.1014 50 0.31 65
IV.MPAG.EHE. 2014-12-23T15:08:30.13 0.3 undecidable manual S 80 51.0156 50 0.31 65
IV.SSFR.HHE. 2014-12-23T15:08:30.98 0.3 undecidable manual S 103 53.6019 50 0.48 63
IV.FRON.EHZ. 2014-12-23T15:08:29.05 0.3 undecidable manual S 94 47.7189 50 0.13 68
IV.MURB.HHZ. 2014-12-23T15:08:28.18 0.3 undecidable manual S 135 44.5221 50 0.09 69
IV.SFI.EHZ. 2014-12-23T15:08:28.55 0.3 undecidable manual S 330 45.8208 50 0.12 69
IV.ATTE.HHZ. 2014-12-23T15:08:27.09 0.3 undecidable manual S 155 42.624 50 -0.48 64
IV.ASSB.HHE. 2014-12-23T15:08:26.18 0.6 undecidable manual P 143 70.1742 50 0.44 41
IV.MGAB.HHZ. 2014-12-23T15:08:25.95 0.1 undecidable manual P 181 70.4739 50 0.17 86
IV.NARO.HHZ. 2014-12-23T15:08:25.58 0.3 undecidable manual S 79 36.5412 50 -0.37 66
IV.RUFI.EHZ. 2014-12-23T15:08:24.16 0.3 undecidable manual P 303 59.5959 50 0.06 68
IV.PIEI.HHZ. 2014-12-23T15:08:24.67 0.3 undecidable manual S 92 32.2455 105 -0.09 71
IV.CPGN.EHZ. 2014-12-23T15:08:24.85 0.3 undecidable manual S 28 31.8459 105 0.22 69
IV.ATVO.HHZ. 2014-12-23T15:08:23.30 0.3 undecidable manual S 130 28.5492 107 -0.23 69
IV.SSFR.HHE. 2014-12-23T15:08:23.03 0.6 undecidable manual P 103 53.6019 50 -0.15 45
IV.ATCC.EHE. 2014-12-23T15:08:23.69 1.0 undecidable manual P 134 57.1983 50 -0.05 23
IV.CAFI.HHZ. 2014-12-23T15:08:23.42 0.3 undecidable manual S 209 27.75 107 0.17 70
IV.FSSB.HHZ. 2014-12-23T15:08:22.99 0.1 undecidable manual P 72 54.1014 50 -0.27 87
IV.MPAG.EHE. 2014-12-23T15:08:22.50 0.1 undecidable manual P 80 51.0156 50 -0.29 87
IV.APEC.HHE. 2014-12-23T15:08:22.07 0.3 undecidable manual S 87 22.9548 110 0.37 68
IV.ATPI.EHZ. 2014-12-23T15:08:22.16 0.3 undecidable manual S 116 24.0537 110 0.11 71
IV.SFI.EHZ. 2014-12-23T15:08:21.87 0.3 undecidable manual P 330 45.8208 50 -0.12 69
IV.FRON.EHZ. 2014-12-23T15:08:21.92 0.3 undecidable manual P 94 47.7189 50 -0.35 65
IV.MURB.HHZ. 2014-12-23T15:08:21.91 0.6 undecidable manual P 135 44.5221 50 0.12 46
IV.ATTE.HHZ. 2014-12-23T15:08:21.38 0.1 undecidable manual P 155 42.624 50 -0.11 92
IV.CPGN.EHZ. 2014-12-23T15:08:20.15 0.3 undecidable manual P 28 31.8459 105 0.36 67
IV.NARO.HHZ. 2014-12-23T15:08:20.10 0.3 undecidable manual P 79 36.5412 50 -0.45 65
IV.ASQU.HHZ. 2014-12-23T15:08:20.72 0.1 undecidable manual P 315 39.1275 50 -0.23 90
IV.PE3.EHZ. 2014-12-23T15:08:19.84 0.1 undecidable manual P 60 33.4443 50 -0.23 91
IV.CAFI.HHZ. 2014-12-23T15:08:19.04 0.1 positive manual P 209 27.75 107 0.05 96
IV.CRE.HHZ. 2014-12-23T15:08:19.59 0.3 undecidable manual S 298 16.6722 117 -0.1 73
IV.ATVO.HHZ. 2014-12-23T15:08:19.15 0.1 undecidable manual P 130 28.5492 107 -0.01 96
IV.PIEI.HHZ. 2014-12-23T15:08:19.48 0.1 undecidable manual P 92 32.2455 105 -0.38 89
IV.ATPI.EHZ. 2014-12-23T15:08:18.24 0.1 positive manual P 116 24.0537 110 -0.06 96
IV.PARC.HHZ. 2014-12-23T15:08:18.82 0.3 undecidable manual S 37 13.9749 121 -0.06 73
IV.APEC.HHE. 2014-12-23T15:08:18.16 0.1 undecidable manual P 87 22.9548 110 0.06 96
IV.CRE.HHZ. 2014-12-23T15:08:17.03 0.1 undecidable manual P 298 16.6722 117 0.09 97
IV.BADI.EHZ. 2014-12-23T15:08:17.91 0.3 undecidable manual S 115 9.7791 131 0.22 72
IV.BADI.EHZ. 2014-12-23T15:08:16.03 0.1 undecidable manual P 115 9.7791 131 0.25 95
IV.PARC.HHZ. 2014-12-23T15:08:16.60 0.1 undecidable manual P 37 13.9749 121 0.13 96
IV.SSP9.EHZ. 2014-12-23T15:08:15.94 0.3 undecidable manual S 356 2.997 161 -0.38 70
IV.SSP9.EHZ. 2014-12-23T15:08:14.95 0.1 undecidable manual P 356 2.997 161 -0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASQU.HHN. ML:1.3 0.0000727 0.4 AML other m 2014-12-23T15:08:27.66
IV.ASQU.HHE. ML:1.3 0.00006675000000000001 1.58 AML other m 2014-12-23T15:08:28.81
IV.ATPI.EHE. ML:1.2 0.0001048 0.56 AML other m 2014-12-23T15:08:23.02
IV.ATPI.EHN. ML:1.3 0.00013550000000000001 0.92 AML other m 2014-12-23T15:08:23.66
IV.ATTE.HHN. ML:1.3 0.00007165 0.98 AML other m 2014-12-23T15:08:28.87
IV.ATTE.HHE. ML:1.4 0.0000799 0.36 AML other m 2014-12-23T15:08:33.64
IV.ATVO.HHE. ML:1.4 0.00013450000000000002 0.36 AML other m 2014-12-23T15:08:25.13
IV.ATVO.HHN. ML:1.4 0.00011549999999999999 0.78 AML other m 2014-12-23T15:08:25.49
IV.BADI.EHN. ML:1.7 0.0007564999999999999 0.36 AML other m 2014-12-23T15:08:17.96
IV.BADI.EHE. ML:1.7 0.0007145000000000001 0.68 AML other m 2014-12-23T15:08:18.41
IV.CAFI.HHE. ML:1.6 0.00020150000000000002 0.52 AML other m 2014-12-23T15:08:23.78
IV.CAFI.HHN. ML:1.5 0.000157 0.2 AML other m 2014-12-23T15:08:24.69
IV.CPGN.EHE. ML:1.9 0.0003295 0.26 AML other m 2014-12-23T15:08:26.42
IV.CPGN.EHN. ML:1.7 0.00022499999999999997 0.3 AML other m 2014-12-23T15:08:26.96
IV.CRE.HHE. ML:1.6 0.00034250000000000003 0.42 AML other m 2014-12-23T15:08:19.96
IV.CRE.HHN. ML:1.7 0.00042 0.28 AML other m 2014-12-23T15:08:20.74
IV.FSSB.HHN. ML:1.8 0.000136 0.22 AML other m 2014-12-23T15:08:33.17
IV.FSSB.HHE. ML:1.8 0.0001545 0.18 AML other m 2014-12-23T15:08:32.35
IV.MGAB.HHE. ML:1.7 0.00007694999999999999 0.34 AML other m 2014-12-23T15:08:39.08
IV.MGAB.HHN. ML:1.8 0.00009709999999999999 1.4 AML other m 2014-12-23T15:08:39.62
IV.MURB.HHN. ML:2.0 0.0002805 0.26 AML other m 2014-12-23T15:08:30.44
IV.MURB.HHE. ML:1.8 0.0002 1.34 AML other m 2014-12-23T15:08:34.53
IV.NARO.HHE. ML:1.4 0.0000948 0.62 AML other m 2014-12-23T15:08:26.89
IV.NARO.HHN. ML:1.5 0.00013000000000000002 0.12 AML other m 2014-12-23T15:08:26.56
IV.PARC.HHN. ML:2.0 0.000993 0.3 AML other m 2014-12-23T15:08:19.37
IV.PARC.HHE. ML:1.7 0.00048549999999999993 0.96 AML other m 2014-12-23T15:08:19.87
IV.PE3.EHN. ML:1.9 0.000309 1.28 AML other m 2014-12-23T15:08:29.60
IV.PE3.EHE. ML:1.8 0.000246 0.3 AML other m 2014-12-23T15:08:26.03
IV.PIEI.HHN. ML:1.4 0.0001042 0.64 AML other m 2014-12-23T15:08:26.38
IV.PIEI.HHE. ML:1.6 0.00019700000000000002 0.14 AML other m 2014-12-23T15:08:25.76
IV.SFI.EHN. ML:1.2 0.0000434 0.6 AML other m 2014-12-23T15:08:29.50
IV.SFI.EHE. ML:1.3 0.000057999999999999994 0.44 AML other m 2014-12-23T15:08:32.17
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