Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 08-05-2013 and time 02:56:44 (Italy) in region 5 km E Città di Castello (PG)

A magnitude ML 1.2 earthquake occured in region: 5 km E Città di Castello (PG), on

  • 08-05-2013 00:56:44 (UTC)
  • 08-05-2013 02:56:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4540, 12.2970 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
Città di Castello PG 5 39913 39913
Montone PG 10 1680 41593
Monte Santa Maria Tiberina PG 11 1183 42776
Pietralunga PG 11 2111 44887
San Giustino PG 14 11297 56184
Monterchi AR 15 1757 57941
Apecchio PU 15 1882 59823
Citerna PG 15 3531 63354
Umbertide PG 17 16681 80035
Sansepolcro AR 18 15884 95919

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Arezzo (99543 inhabitants)
39 Km N of Perugia (166134 inhabitants)
64 Km NW of Foligno (57155 inhabitants)
71 Km SW of Rimini (147750 inhabitants)
71 Km SW of Pesaro (94582 inhabitants)
73 Km SW of Fano (60888 inhabitants)
76 Km S of Cesena (96758 inhabitants)
79 Km E of Siena (53903 inhabitants)
88 Km S of Forlì (117913 inhabitants)
91 Km E of Firenze (382808 inhabitants)
96 Km E of Scandicci (50609 inhabitants)
98 Km SE of Faenza (58541 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 1.2 2013-05-08
00:56:44		 43.4538 12.2973 10 2015-01-20
11:25:44		 Bollettino Sismico Italiano INGV 3523901
Reviewed
Rev100 		ML 1.2 2013-05-08
00:56:44		 43.4548 12.2903 10 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 3426491
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2013-05-08 00:56:44 ± 0.06
Latitude 43.4538 ± 0.0036
Longitude 12.2973 ± 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 3523901

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 404
Semi-minor axis of confidence ellipse (meter) 360
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 91
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 60
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
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) 0.07644
Epicentral distance of station farthest from the epicenter (degree) 0.29947
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 3523901
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2015-01-15 12:55:23

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 3426491
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2013-05-08 01:22:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CRE.HHZ. 2013-05-08T00:56:56.71 0.3 undecidable manual S 303 33.2445 50 0.93 54
IV.PE3.EHZ. 2013-05-08T00:56:55.28 0.1 undecidable manual S 31 31.2465 50 0.04 96
IV.NARO.HHZ. 2013-05-08T00:56:54.39 0.3 undecidable manual S 53 28.6491 50 -0.16 71
IV.ATTE.HHZ. 2013-05-08T00:56:54.00 0.1 undecidable manual S 171 28.749 50 -0.57 86
IV.MURB.HHZ. 2013-05-08T00:56:54.73 0.1 undecidable manual S 139 28.0497 50 0.36 90
IV.CAFI.HHZ. 2013-05-08T00:56:54.72 0.1 undecidable manual S 243 30.0477 50 -0.2 94
IV.ATFO.HHZ. 2013-05-08T00:56:53.44 0.1 undecidable manual S 114 24.1536 113 0.12 96
IV.PIEI.HHZ. 2013-05-08T00:56:52.69 0.1 undecidable manual S 65 21.1677 116 0.3 93
IV.PARC.HHZ. 2013-05-08T00:56:52.59 0.1 undecidable manual S 348 22.0668 115 -0.09 97
IV.MURB.HHZ. 2013-05-08T00:56:50.17 0.1 undecidable manual P 139 28.0497 50 0.08 96
IV.ATMI.HHZ. 2013-05-08T00:56:50.34 0.1 undecidable manual S 190 13.4754 127 0.24 95
IV.CAFI.HHZ. 2013-05-08T00:56:50.29 0.1 undecidable manual P 243 30.0477 50 -0.11 95
IV.PE3.EHZ. 2013-05-08T00:56:50.64 0.1 undecidable manual P 31 31.2465 50 0.05 96
IV.ATTE.HHZ. 2013-05-08T00:56:50.25 0.1 undecidable manual P 171 28.749 50 0.05 97
IV.CRE.HHZ. 2013-05-08T00:56:50.73 0.1 undecidable manual P 303 33.2445 50 -0.17 93
IV.ATFO.HHZ. 2013-05-08T00:56:49.41 0.1 undecidable manual P 114 24.1536 113 -0.07 97
IV.NARO.HHZ. 2013-05-08T00:56:49.99 0.1 undecidable manual P 53 28.6491 50 -0.2 94
IV.PIEI.HHZ. 2013-05-08T00:56:49.00 0.1 undecidable manual P 65 21.1677 116 0.06 98
IV.ATVO.HHZ. 2013-05-08T00:56:49.69 0.1 undecidable manual S 132 11.877 131 0.03 100
IV.PARC.HHZ. 2013-05-08T00:56:48.95 0.1 undecidable manual P 348 22.0668 115 -0.16 95
IV.ATPI.EHZ. 2013-05-08T00:56:48.42 0.1 undecidable manual S 92 8.4804 140 -0.41 93
IV.ATVO.HHZ. 2013-05-08T00:56:47.50 0.1 undecidable manual P 132 11.877 131 0.13 98
IV.ATMI.HHZ. 2013-05-08T00:56:47.77 0.1 undecidable manual P 190 13.4754 127 0.15 97
IV.ATPI.EHZ. 2013-05-08T00:56:46.81 0.1 undecidable manual P 92 8.4804 140 -0.08 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATMI.HHE. ML:1.4 0.00029099999999999997 0.32 AML other m 2013-05-08T00:57:30.30
IV.ATMI.HHN. ML:1.4 0.0002855 0.72 AML other m 2013-05-08T00:57:34.05
IV.ATPI.EHE. ML:1.0 0.00012525 0.78 AML other m 2013-05-08T00:57:28.62
IV.ATPI.EHN. ML:1.1 0.00016 1.18 AML other m 2013-05-08T00:57:28.77
IV.ATTE.HHN. ML:1.3 0.0000979 0.56 AML other m 2013-05-08T00:57:34.68
IV.ATTE.HHE. ML:1.2 0.00008044999999999999 1.38 AML other m 2013-05-08T00:56:55.89
IV.ATVO.HHE. ML:1.2 0.0001995 0.2 AML other m 2013-05-08T00:57:29.82
IV.ATVO.HHN. ML:1.3 0.00020700000000000002 1.14 AML other m 2013-05-08T00:57:30.18
IV.PARC.HHE. ML:1.2 0.000096 0.74 AML other m 2013-05-08T00:57:33.06
IV.PARC.HHN. ML:1.2 0.0001065 0.5 AML other m 2013-05-08T00:57:36.00
IV.PIEI.HHN. ML:0.9 0.00005225 1.32 AML other m 2013-05-08T00:56:53.45
IV.PIEI.HHE. ML:1.1 0.00008035 0.18 AML other m 2013-05-08T00:56:53.83
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