Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 22-04-2013 and time 20:23:09 (UTC) in region 6 km E Città di Castello (PG)

A magnitude ML 2.0 earthquake occured in region: 6 km E Città di Castello (PG), on

  • 22-04-2013 20:23:09 (UTC)
  • 22-04-2013 22:23:09 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4560, 12.3150 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
Città di Castello PG 6 39913 39913
Pietralunga PG 10 2111 42024
Montone PG 10 1680 43704
Monte Santa Maria Tiberina PG 12 1183 44887
Apecchio PU 14 1882 46769
San Giustino PG 15 11297 58066
Umbertide PG 17 16681 74747
Monterchi AR 17 1757 76504
Citerna PG 17 3531 80035
Sansepolcro AR 19 15884 95919

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Arezzo (99543 inhabitants)
39 Km N of Perugia (166134 inhabitants)
64 Km NW of Foligno (57155 inhabitants)
70 Km SW of Pesaro (94582 inhabitants)
70 Km SW of Rimini (147750 inhabitants)
71 Km SW of Fano (60888 inhabitants)
76 Km S of Cesena (96758 inhabitants)
81 Km E of Siena (53903 inhabitants)
88 Km S of Forlì (117913 inhabitants)
92 Km E of Firenze (382808 inhabitants)
97 Km E of Scandicci (50609 inhabitants)
99 Km SE of Faenza (58541 inhabitants)
99 Km W of Ancona (100861 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 2013-04-22
20:23:09		 43.4558 12.3147 8 2015-01-20
11:25:07		 Bollettino Sismico Italiano INGV 3709091
Reviewed
Rev100 		ML 2.0 2013-04-22
20:23:09		 43.4525 12.3182 9 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 3298291
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2013-04-22 20:23:09 ± 0.05
Latitude 43.4558 ± 0.0027
Longitude 12.3147 ± 0.0037
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 3709091

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 308
Semi-minor axis of confidence ellipse (meter) 215
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 16
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) 67
Number of associated phases, regardless of their use for origin computation 48
Number of defining phases 48
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.05846
Epicentral distance of station farthest from the epicenter (degree) 0.70147
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 25
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 3709091
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2015-01-15 12:56:51

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 3298291
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2013-04-22 20:30:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2013-04-22T20:23:34.43 0.6 undecidable manual S 126 77.8665 50 0.87 35
IV.SACS.HHZ. 2013-04-22T20:23:33.23 0.6 undecidable manual S 206 74.8695 50 0.47 41
IV.CESI.HHZ. 2013-04-22T20:23:31.91 0.3 undecidable manual S 136 69.0753 50 0.68 57
IV.EL6.EHZ. 2013-04-22T20:23:30.95 0.3 undecidable manual S 102 64.9905 50 0.83 54
IV.MGAB.HHZ. 2013-04-22T20:23:29.96 0.6 undecidable manual S 195 62.3931 50 0.51 41
IV.SFI.EHZ. 2013-04-22T20:23:29.19 0.6 undecidable manual S 323 62.3931 50 -0.24 44
IV.ASSB.HHZ. 2013-04-22T20:23:27.05 0.3 undecidable manual S 149 53.6019 50 -0.04 70
IV.ARVD.HHZ. 2013-04-22T20:23:26.47 0.3 undecidable manual S 84 50.7159 50 0.16 68
IV.MPAG.EHZ. 2013-04-22T20:23:23.58 0.3 undecidable manual S 62 40.626 50 -0.05 71
IV.SACS.HHZ. 2013-04-22T20:23:23.12 1.0 undecidable manual P 206 74.8695 50 0.15 22
IV.FDMO.HHZ. 2013-04-22T20:23:23.21 1.0 undecidable manual P 126 77.8665 50 -0.22 21
IV.SSFR.HHZ. 2013-04-22T20:23:22.53 0.3 undecidable manual S 93 37.7289 50 -0.32 68
IV.CESI.HHZ. 2013-04-22T20:23:22.16 0.1 undecidable manual P 136 69.0753 50 0.08 89
IV.EL6.EHZ. 2013-04-22T20:23:21.42 0.3 undecidable manual P 102 64.9905 50 -0.02 68
IV.SFI.EHZ. 2013-04-22T20:23:21.19 1.0 undecidable manual P 323 62.3931 50 0.15 22
IV.FRON.EHZ. 2013-04-22T20:23:21.28 0.3 undecidable manual S 78 33.8439 103 -0.33 68
IV.CAFI.HHZ. 2013-04-22T20:23:20.28 0.3 undecidable manual S 244 31.3464 104 -0.51 65
IV.MGAB.HHZ. 2013-04-22T20:23:20.99 0.1 positive manual P 195 62.3931 50 -0.06 91
IV.MURB.HHZ. 2013-04-22T20:23:19.26 0.3 undecidable manual S 142 27.2505 106 -0.16 71
IV.ARVD.HHZ. 2013-04-22T20:23:19.01 0.3 positive manual P 84 50.7159 50 -0.23 67
IV.NARO.HHZ. 2013-04-22T20:23:19.64 0.3 undecidable manual S 51 27.4503 106 0.17 71
IV.ATTE.HHZ. 2013-04-22T20:23:19.52 0.6 undecidable manual S 174 28.749 105 -0.4 45
IV.ASSB.HHZ. 2013-04-22T20:23:19.47 0.3 positive manual P 149 53.6019 50 -0.22 67
IV.PARC.HHZ. 2013-04-22T20:23:18.08 0.3 undecidable manual S 344 22.2555 109 0.33 69
IV.ATFO.HHZ. 2013-04-22T20:23:18.07 0.3 undecidable manual S 115 22.9548 109 0.09 73
IV.FSSB.HHZ. 2013-04-22T20:23:18.19 0.1 positive manual P 55 45.5211 50 -0.26 90
IV.ATCC.EHZ. 2013-04-22T20:23:17.35 0.3 undecidable manual P 139 39.9267 50 -0.22 69
IV.SSP9.EHZ. 2013-04-22T20:23:17.37 0.3 undecidable manual S 312 19.7691 111 0.44 68
IV.MPAG.EHZ. 2013-04-22T20:23:17.33 0.1 undecidable manual P 62 40.626 50 -0.36 89
IV.SSFR.HHZ. 2013-04-22T20:23:16.85 0.1 undecidable manual P 93 37.7289 50 -0.39 89
IV.FRON.EHZ. 2013-04-22T20:23:16.21 0.1 undecidable manual P 78 33.8439 103 -0.31 91
IV.ATTE.HHZ. 2013-04-22T20:23:15.35 0.3 negative manual P 174 28.749 105 -0.2 70
IV.MURB.HHZ. 2013-04-22T20:23:15.20 0.1 undecidable manual P 142 27.2505 106 -0.05 97
IV.CAFI.HHZ. 2013-04-22T20:23:15.79 0.1 undecidable manual P 244 31.3464 104 -0.27 92
IV.NARO.HHZ. 2013-04-22T20:23:15.11 0.1 undecidable manual P 51 27.4503 106 -0.18 94
IV.ATVO.HHZ. 2013-04-22T20:23:14.59 0.3 undecidable manual S 138 11.0778 125 0.34 70
IV.PARC.HHZ. 2013-04-22T20:23:14.38 0.3 positive manual P 344 22.2555 109 0.09 73
IV.ATFO.HHZ. 2013-04-22T20:23:14.56 0.1 positive manual P 115 22.9548 109 0.13 96
IV.ATMI.HHZ. 2013-04-22T20:23:14.84 0.3 undecidable manual S 196 13.9749 119 -0.28 71
IV.SSP9.EHZ. 2013-04-22T20:23:14.10 0.6 undecidable manual P 312 19.7691 111 0.28 47
IV.CDCA.EHZ. 2013-04-22T20:23:13.05 0.3 undecidable manual S 273 6.4935 140 -0.04 76
IV.ATPI.EHZ. 2013-04-22T20:23:13.24 0.3 undecidable manual S 95 7.0929 137 0.03 76
IV.ATMI.HHZ. 2013-04-22T20:23:13.09 0.1 undecidable manual P 196 13.9749 119 0.31 94
IV.BADI.EHZ. 2013-04-22T20:23:13.67 0.3 undecidable manual S 317 8.1807 133 0.18 73
IV.ATVO.HHZ. 2013-04-22T20:23:12.51 0.1 undecidable manual P 138 11.0778 125 0.23 96
IV.ATPI.EHZ. 2013-04-22T20:23:11.85 0.1 undecidable manual P 95 7.0929 137 0.17 98
IV.BADI.EHZ. 2013-04-22T20:23:11.73 0.3 positive manual P 317 8.1807 133 -0.11 74
IV.CDCA.EHZ. 2013-04-22T20:23:11.68 0.1 undecidable manual P 273 6.4935 140 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARVD.HHN. ML:1.7 0.00011695 0.28 AML other m 2013-04-22T20:23:26.77
IV.ARVD.HHE. ML:1.5 0.00008790000000000001 0.24 AML other m 2013-04-22T20:23:26.92
IV.ASSB.HHE. ML:1.7 0.00011335 0.62 AML other m 2013-04-22T20:23:28.23
IV.ASSB.HHN. ML:1.7 0.000129 0.3 AML other m 2013-04-22T20:23:28.76
IV.ATCC.EHE. ML:2.0 0.00038500000000000003 0.58 AML other m 2013-04-22T20:23:26.11
IV.ATCC.EHN. ML:1.9 0.00027 0.46 AML other m 2013-04-22T20:23:25.91
IV.ATFO.HHN. ML:2.0 0.000624 0.36 AML other m 2013-04-22T20:23:19.07
IV.ATFO.HHE. ML:1.8 0.0004585 0.28 AML other m 2013-04-22T20:23:19.74
IV.ATMI.HHE. ML:2.4 0.00248 0.48 AML other m 2013-04-22T20:23:19.72
IV.ATMI.HHN. ML:2.2 0.001915 0.44 AML other m 2013-04-22T20:23:15.97
IV.ATPI.EHE. ML:2.0 0.00199 0.5 AML other m 2013-04-22T20:23:13.40
IV.ATPI.EHN. ML:1.9 0.00138 0.28 AML other m 2013-04-22T20:23:14.54
IV.ATTE.HHE. ML:1.9 0.000378 1.58 AML other m 2013-04-22T20:23:21.60
IV.ATTE.HHN. ML:2.0 0.00046599999999999994 0.78 AML other m 2013-04-22T20:23:21.31
IV.ATVO.HHE. ML:2.2 0.00209 0.42 AML other m 2013-04-22T20:23:14.88
IV.ATVO.HHN. ML:2.0 0.0015 0.26 AML other m 2013-04-22T20:23:15.98
IV.CAFI.HHN. ML:1.7 0.00023850000000000002 1.14 AML other m 2013-04-22T20:23:20.85
IV.CAFI.HHE. ML:1.7 0.000216 0.8 AML other m 2013-04-22T20:23:21.15
IV.CDCA.HNN. ML:2.7 0.010164999999999999 0.46 AML other m 2013-04-22T20:23:17.33
IV.CDCA.HNE. ML:2.6 0.008060000000000001 1.12 AML other m 2013-04-22T20:23:16.88
IV.CESI.HHN. ML:1.2 0.000025450000000000002 1.06 AML other m 2013-04-22T20:23:36.01
IV.CESI.HHE. ML:0.7 0.00000877 0.38 AML other m 2013-04-22T20:23:37.78
IV.EL6.EHE. ML:1.7 0.00010250000000000004 1.58 AML other m 2013-04-22T20:23:15.89
IV.EL6.EHN. ML:1.9 0.00014000000000000001 0.76 AML other m 2013-04-22T20:23:32.10
IV.FDMO.HHN. ML:1.4 0.00004075 1.26 AML other m 2013-04-22T20:23:36.53
IV.FDMO.HHE. ML:1.5 0.000043049999999999996 1.44 AML other m 2013-04-22T20:23:37.99
IV.FRON.EHE. ML:1.6 0.000187 1.08 AML other m 2013-04-22T20:23:21.79
IV.FRON.EHN. ML:1.9 0.0003255 0.54 AML other m 2013-04-22T20:23:21.61
IV.FSSB.HHE. ML:2.1 0.0003575 0.32 AML other m 2013-04-22T20:23:25.75
IV.FSSB.HHN. ML:2.0 0.00032250000000000003 1.24 AML other m 2013-04-22T20:23:25.49
IV.MGAB.HHE. ML:2.2 0.0003095 1.12 AML other m 2013-04-22T20:23:32.20
IV.MGAB.HHN. ML:2.1 0.0002515 0.72 AML other m 2013-04-22T20:23:32.84
IV.MPAG.EHE. ML:1.5 0.0001035 1.5 AML other m 2013-04-22T20:23:24.73
IV.MPAG.EHN. ML:1.8 0.000226 0.36 AML other m 2013-04-22T20:23:23.89
IV.MURB.HNN. ML:2.3 0.0011315 0.22 AML other m 2013-04-22T20:23:20.30
IV.MURB.HNE. ML:2.3 0.0010875 1.04 AML other m 2013-04-22T20:23:22.24
IV.MURB.HHN. ML:2.3 0.0010805 0.22 AML other m 2013-04-22T20:23:20.42
IV.MURB.HHE. ML:2.4 0.001245 0.34 AML other m 2013-04-22T20:23:20.27
IV.NARO.HHE. ML:1.7 0.0002715 1.48 AML other m 2013-04-22T20:23:19.99
IV.NARO.HHN. ML:1.7 0.000277 0.28 AML other m 2013-04-22T20:23:20.43
IV.PARC.HHN. ML:2.0 0.0006975 1.42 AML other m 2013-04-22T20:23:21.38
IV.PARC.HHE. ML:2.1 0.0009184999999999999 0.22 AML other m 2013-04-22T20:23:20.24
IV.SACS.HHE. ML:1.9 0.00011370000000000001 0.24 AML other m 2013-04-22T20:23:34.34
IV.SACS.HHN. ML:2.0 0.00014399999999999998 1.58 AML other m 2013-04-22T20:23:36.85
IV.SSFR.HNE. ML:2.3 0.0007830000000000001 1.14 AML other m 2013-04-22T20:23:23.54
IV.SSFR.HHN. ML:2.4 0.000901 1.06 AML other m 2013-04-22T20:23:22.77
IV.SSFR.HNN. ML:2.4 0.0009595000000000001 1.02 AML other m 2013-04-22T20:23:22.78
IV.SSFR.HHE. ML:2.3 0.000823 0.2 AML other m 2013-04-22T20:23:23.43
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