Earthquake with magnitude of ML 1.2 on date 13-08-2018 and time 01:13:41 (Italy) in region 4 km W Sansepolcro (AR)

A magnitude ML 1.2 earthquake occured in region: 4 km W Sansepolcro (AR), on

  • 12-08-2018 23:13:41 (UTC)
  • 13-08-2018 01:13:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.56, 12.1 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.

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 4 15884 15884
Anghiari AR 4 5638 21522
San Giustino PG 7 11297 32819
Citerna PG 7 3531 36350
Monterchi AR 9 1757 38107
Pieve Santo Stefano AR 13 3183 41290
Caprese Michelangelo AR 13 1426 42716
Monte Santa Maria Tiberina PG 15 1183 43899
CittĂ  di Castello PG 16 39913 83812
Badia Tedalda AR 18 1087 84899
Subbiano AR 18 6331 91230
Borgo Pace PU 19 606 91836
Capolona AR 19 5438 97274

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km NE of Arezzo (99543 inhabitants)
56 Km NW of Perugia (166134 inhabitants)
65 Km S of Cesena (96758 inhabitants)
67 Km SW of Rimini (147750 inhabitants)
68 Km E of Siena (53903 inhabitants)
72 Km E of Firenze (382808 inhabitants)
74 Km S of Forlì (117913 inhabitants)
76 Km SW of Pesaro (94582 inhabitants)
77 Km E of Scandicci (50609 inhabitants)
80 Km W of Fano (60888 inhabitants)
82 Km S of Faenza (58541 inhabitants)
83 Km NW of Foligno (57155 inhabitants)
88 Km E of Prato (191150 inhabitants)
93 Km SE of Imola (69797 inhabitants)
96 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
Rev 1000 ML 1.2 2018-08-12
23:13:41
43.56 12.1 9 2019-04-24
14:50:53
Bollettino Sismico Italiano INGV 59849031
Rev 100 ML 1.4 2018-08-12
23:13:41
43.57 12.09 9 2018-08-12
23:25:19
Sala Sismica INGV-Roma 59696441
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-08-12 23:13:41 ± 0.05
Latitude 43.56 ± 0.00
Longitude 12.10 ± 0.00
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 59849031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 298
Semi-minor axis of confidence ellipse (meter) 277
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 82
Circular confidence region, given by single value of horizontal uncertainty (meter) 300
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 62
Number of associated phases, regardless of their use for origin computation 38
Number of defining phases 36
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.61334
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 59849031
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-08-17 09:51:52

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 59696441
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-08-12 23:25:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MURB.HHZ. 2018-08-12T23:13:57.03 0.6 undecidable manual S 134 0.4299 50 0.31 44
IV.SFI.EHE. 2018-08-12T23:13:55.52 0.3 undecidable manual S 332 0.3876 50 0.06 70
IV.ATFO.HHZ. 2018-08-12T23:13:55.79 0.6 undecidable manual S 120 0.3948 50 0.12 46
IV.ATTE.HHZ. 2018-08-12T23:13:55.68 0.3 undecidable manual S 153 0.4083 50 -0.41 65
IV.NARO.HHZ. 2018-08-12T23:13:54.36 0.3 undecidable manual S 82 0.3516 50 -0.05 70
IV.CSNT.HHN. 2018-08-12T23:13:53.28 0.3 undecidable manual P 262 0.5927 50 0.38 63
IV.PIEI.HHZ. 2018-08-12T23:13:53.52 0.3 undecidable manual S 95 0.3166 50 0.16 69
IV.PE3.EHZ. 2018-08-12T23:13:53.68 0.3 undecidable manual S 65 0.3166 50 0.31 67
IV.ARVD.HHZ. 2018-08-12T23:13:53.22 0.6 undecidable manual P 96 0.6133 50 -0.04 45
IV.ATCC.EHZ. 2018-08-12T23:13:52.31 0.6 undecidable manual P 134 0.545 50 0.24 43
IV.ATVO.HHZ. 2018-08-12T23:13:52.46 0.6 undecidable manual S 129 0.2869 50 -0.02 48
IV.ATPI.EHZ. 2018-08-12T23:13:51.12 0.1 undecidable manual S 117 0.2464 108 0.02 96
IV.ATMI.HHZ. 2018-08-12T23:13:51.48 0.6 undecidable manual S 152 0.259 108 -0.08 48
IV.CAFI.HHZ. 2018-08-12T23:13:51.36 0.3 undecidable manual S 203 0.2527 108 0.05 72
IV.SSFR.HHZ. 2018-08-12T23:13:51.38 0.3 undecidable manual P 104 0.5108 50 -0.12 67
IV.APEC.HHZ. 2018-08-12T23:13:50.63 0.3 undecidable manual S 91 0.232 109 0.06 72
IV.ATFO.HHZ. 2018-08-12T23:13:49.29 0.3 undecidable manual P 120 0.3948 50 -0.22 67
IV.ATTE.HHZ. 2018-08-12T23:13:49.68 0.3 undecidable manual P 153 0.4083 50 -0.07 69
IV.MURB.HHZ. 2018-08-12T23:13:49.94 0.3 undecidable manual P 134 0.4299 50 -0.18 68
IV.SFI.EHE. 2018-08-12T23:13:49.21 0.6 undecidable manual P 332 0.3876 50 -0.17 45
IV.CPGN.EHZ. 2018-08-12T23:13:48.10 0.3 undecidable manual P 34 0.2869 50 0.43 66
IV.NARO.HHZ. 2018-08-12T23:13:48.30 0.3 undecidable manual P 82 0.3516 50 -0.48 64
IV.PE3.EHZ. 2018-08-12T23:13:48.16 0.1 undecidable manual P 65 0.3166 50 -0.02 95
IV.ASQU.HHZ. 2018-08-12T23:13:48.15 0.3 undecidable manual P 316 0.3238 50 -0.15 69
IV.ATVO.HHZ. 2018-08-12T23:13:47.64 0.1 undecidable manual P 129 0.2869 50 -0.02 96
IV.PIEI.HHZ. 2018-08-12T23:13:47.98 0.1 undecidable manual P 95 0.3166 50 -0.2 92
IV.CDCA.HNN. 2018-08-12T23:13:47.82 3.0 undecidable manual S 0.28 0
IV.ATMI.HHZ. 2018-08-12T23:13:47.07 0.1 positive manual P 152 0.259 108 -0.06 95
IV.CAFI.HHZ. 2018-08-12T23:13:47.10 0.1 positive manual P 203 0.2527 108 0.11 94
IV.PARC.HHZ. 2018-08-12T23:13:46.93 0.1 undecidable manual S 50 0.1322 122 -0.16 96
IV.APEC.HHZ. 2018-08-12T23:13:46.60 0.1 undecidable manual P 91 0.232 109 0.04 96
IV.BADI.EHZ. 2018-08-12T23:13:46.98 0.3 undecidable manual S 117 0.1178 125 0.36 69
IV.ATPI.EHZ. 2018-08-12T23:13:46.77 0.1 undecidable manual P 117 0.2464 108 -0.09 95
IV.PARC.HHZ. 2018-08-12T23:13:44.61 0.1 positive manual P 50 0.1322 122 0.06 98
IV.BADI.EHZ. 2018-08-12T23:13:44.54 0.1 negative manual P 117 0.1178 125 0.26 94
IV.SSP9.EHZ. 2018-08-12T23:13:44.13 0.3 undecidable manual S 64 0.0261 162 -0.27 72
IV.CDCA.HNN. 2018-08-12T23:13:44.92 3.0 undecidable manual P 0.14 0
IV.SSP9.EHZ. 2018-08-12T23:13:42.95 0.1 positive manual P 64 0.0261 162 -0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SSP9.EHN. ML:0 0.0016489095 0.2816 AML other m 2018-08-12T23:13:44.22
IV.SSP9.EHE. ML:0 0.00124605465 0.2048 AML other m 2018-08-12T23:13:44.56
IV.BADI.EHN. ML:1.1 0.000130966295 0.1408 AML other m 2018-08-12T23:13:47.55
IV.BADI.EHE. ML:1.2 0.0001760579 0.4352 AML other m 2018-08-12T23:13:48.89
IV.APEC.HHN. ML:1.4 0.0001467706 0.2816 AML other m 2018-08-12T23:13:51.05
IV.APEC.HNE. ML:2.4 0.0013161415 1.216 AML other m 2018-08-12T23:13:55.85
IV.APEC.HHE. ML:1.4 0.00015871855 0.1408 AML other m 2018-08-12T23:13:52.47
IV.ATPI.EHN. ML:0.9 4.6975885E-5 0.0512 AML other m 2018-08-12T23:13:51.44
IV.ATPI.EHE. ML:1 5.039756E-5 0.1024 AML other m 2018-08-12T23:13:51.75
IV.ATMI.HHN. ML:1.4 0.0001428495 0.1152 AML other m 2018-08-12T23:13:51.78
IV.ATMI.HHE. ML:1.5 0.0001585501 0.1792 AML other m 2018-08-12T23:13:51.72
IV.CAFI.HNE. ML:1.1 6.1081135E-5 0.2432 AML other m 2018-08-12T23:13:51.96
IV.CAFI.HNN. ML:0.9 4.2112805E-5 0.1152 AML other m 2018-08-12T23:13:52.03
IV.CAFI.HHN. ML:0.9 4.658304E-5 0.1152 AML other m 2018-08-12T23:13:51.87
IV.CAFI.HHE. ML:1.1 5.7655505E-5 0.2304 AML other m 2018-08-12T23:13:51.95
IV.ATVO.HHE. ML:1.1 5.78382E-5 0.1792 AML other m 2018-08-12T23:13:52.80
IV.ATVO.HHN. ML:1.1 5.83234E-5 0.2688 AML other m 2018-08-12T23:13:53.86
IV.PIEI.HHN. ML:1.4 9.1210935E-5 0.0896 AML other m 2018-08-12T23:13:53.80
IV.PIEI.HHE. ML:1.6 0.0001639704 0.0896 AML other m 2018-08-12T23:13:53.80
IV.ASQU.HHN. ML:0.8 2.7411855E-5 0.3584 AML other m 2018-08-12T23:13:55.07
IV.ASQU.HHE. ML:0.7 2.213381E-5 0.256 AML other m 2018-08-12T23:13:53.00
IV.PE3.EHE. ML:2 0.00043191765 0.2816 AML other m 2018-08-12T23:13:54.46
IV.PE3.EHN. ML:1.9 0.00034020895 0.1152 AML other m 2018-08-12T23:13:54.55
IV.NARO.HHN. ML:1.4 9.3106455E-5 0.064 AML other m 2018-08-12T23:13:55.42
IV.NARO.HHE. ML:1.5 0.00010415795 0.0768 AML other m 2018-08-12T23:13:54.94
IV.ATFO.HHE. ML:1 3.23474E-5 0.448 AML other m 2018-08-12T23:13:57.79
IV.ATFO.HHN. ML:1.2 4.831276E-5 0.3072 AML other m 2018-08-12T23:13:57.75
IV.ATTE.HHE. ML:1 3.1190355E-5 0.2176 AML other m 2018-08-12T23:13:55.84
IV.ATTE.HHN. ML:1.3 5.2862065E-5 0.1792 AML other m 2018-08-12T23:13:56.57
IV.MURB.HHN. ML:1.5 9.3060645E-5 0.2432 AML other m 2018-08-12T23:13:59.23
IV.MURB.HHE. ML:1.5 9.4749425E-5 0.2176 AML other m 2018-08-12T23:13:58.41
IV.FOSV.EHE. ML:0.7 1.01504905E-5 0.256 AML other m 2018-08-12T23:14:05.68
IV.FOSV.EHN. ML:0.7 9.4878135E-6 0.2432 AML other m 2018-08-12T23:14:07.97
IV.ATCC.EHE. ML:1.2 3.496938E-5 0.4096 AML other m 2018-08-12T23:14:02.55
IV.ATCC.EHN. ML:1.2 2.755313E-5 0.2176 AML other m 2018-08-12T23:14:05.01
IV.ARVD.HHN. ML:0.8 8.087132E-6 0.1408 AML other m 2018-08-12T23:14:04.01
IV.ARVD.HHE. ML:0.8 1.06246795E-5 0.1024 AML other m 2018-08-12T23:14:04.62
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download