Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 01-02-2014 and time 08:08:39 (UTC) in region 2 km E Pietralunga (PG)

A magnitude ML 1.6 earthquake occured in region: 2 km E Pietralunga (PG), on

  • 01-02-2014 08:08:39 (UTC)
  • 01-02-2014 09:08:39 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4370, 12.4650 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
Pietralunga PG 2 2111 2111
Gubbio PG 13 32216 34327
Montone PG 14 1680 36007
Cantiano PU 14 2245 38252
Apecchio PU 14 1882 40134
Scheggia e Pascelupo PG 17 1393 41527
Piobbico PU 17 2029 43556
Umbertide PG 18 16681 60237
Città di Castello PG 18 39913 100150
Cagli PU 19 8731 108881

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km N of Perugia (166134 inhabitants)
47 Km E of Arezzo (99543 inhabitants)
57 Km NW of Foligno (57155 inhabitants)
64 Km SW of Fano (60888 inhabitants)
64 Km SW of Pesaro (94582 inhabitants)
70 Km S of Rimini (147750 inhabitants)
80 Km S of Cesena (96758 inhabitants)
87 Km W of Ancona (100861 inhabitants)
92 Km E of Siena (53903 inhabitants)
94 Km SE of Forlì (117913 inhabitants)
99 Km N of Terni (111501 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 2014-02-01
08:08:39		 43.4373 12.4647 8 2015-09-21
09:34:15		 Bollettino Sismico Italiano INGV 9158891
Reviewed
Rev100 		ML 1.7 2014-02-01
08:08:39		 43.4397 12.4687 7 2015-08-12
08:42:26		 Sala Sismica INGV-Roma 5427101
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-02-01 08:08:39 ± 0.04
Latitude 43.4373 ± 0.0027
Longitude 12.4647 ± 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 9158891

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 236
Semi-minor axis of confidence ellipse (meter) 197
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 12
Circular confidence region, given by single value of horizontal uncertainty (meter) 240.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 69
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 27
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) 0.04766
Epicentral distance of station farthest from the epicenter (degree) 0.47484
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 5427101
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2014-02-01 08:18:05

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 9158891
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2014-10-31 14:41:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2014-02-01T08:08:57.07 0.3 undecidable manual S 103 52.7028 50 0.41 64
IV.CRE.HHZ. 2014-02-01T08:08:55.20 0.3 undecidable manual S 296 45.9207 50 0.36 65
IV.ASSB.HHZ. 2014-02-01T08:08:54.86 0.3 undecidable manual S 160 46.5201 50 -0.14 68
IV.CAFI.HHZ. 2014-02-01T08:08:53.71 0.3 undecidable manual S 254 41.9247 50 -0.07 70
IV.ARVD.HHZ. 2014-02-01T08:08:52.96 0.3 undecidable manual S 80 38.9277 50 -0.03 71
IV.ATCC.EHZ. 2014-02-01T08:08:51.11 0.3 undecidable manual S 153 31.3464 105 0.36 67
IV.EL6.EHZ. 2014-02-01T08:08:49.36 0.1 undecidable manual P 103 52.7028 50 -0.05 92
IV.CRE.HHZ. 2014-02-01T08:08:48.31 0.1 undecidable manual P 296 45.9207 50 -0.05 93
IV.ASSB.HHZ. 2014-02-01T08:08:48.33 0.1 undecidable manual P 160 46.5201 50 -0.12 92
IV.BADI.EHZ. 2014-02-01T08:08:47.12 0.3 undecidable manual S 294 19.4694 113 0.28 70
IV.NARO.HHZ. 2014-02-01T08:08:47.31 0.3 undecidable manual S 26 21.3675 111 -0.15 71
IV.FRON.EHZ. 2014-02-01T08:08:47.90 0.3 undecidable manual S 67 22.8549 110 -0.03 73
IV.ARVD.HHZ. 2014-02-01T08:08:47.17 0.6 negative manual P 80 38.9277 50 -0.12 46
IV.CAFI.HHZ. 2014-02-01T08:08:47.60 0.1 undecidable manual P 254 41.9247 50 -0.15 92
IV.FSSB.HHZ. 2014-02-01T08:08:46.86 0.1 undecidable manual P 41 37.9287 50 -0.26 90
IV.ATCC.EHZ. 2014-02-01T08:08:46.00 0.1 undecidable manual P 153 31.3464 105 0 96
IV.PE3.EHZ. 2014-02-01T08:08:45.56 0.1 undecidable manual P 5 28.8489 106 0.05 96
IV.ATFO.HHZ. 2014-02-01T08:08:44.37 0.3 undecidable manual S 132 11.6772 125 -0.09 74
IV.PIEI.HHZ. 2014-02-01T08:08:44.95 0.3 undecidable manual S 27 12.2766 124 0.31 70
IV.FRON.EHZ. 2014-02-01T08:08:44.25 0.1 undecidable manual P 67 22.8549 110 -0.12 96
IV.BADI.EHZ. 2014-02-01T08:08:43.83 0.1 positive manual P 294 19.4694 113 0.09 97
IV.NARO.HHZ. 2014-02-01T08:08:43.93 0.1 undecidable manual P 26 21.3675 111 -0.17 95
IV.PIEI.HHZ. 2014-02-01T08:08:42.68 0.1 undecidable manual P 27 12.2766 124 0.21 96
IV.ATPI.EHZ. 2014-02-01T08:08:42.47 0.3 undecidable manual S 286 5.2947 148 -0.43 69
IV.ATFO.HHZ. 2014-02-01T08:08:42.44 0.1 undecidable manual P 132 11.6772 125 0.08 98
IV.ATPI.EHZ. 2014-02-01T08:08:41.42 0.1 positive manual P 286 5.2947 148 -0.05 100
IV.ATVO.HHZ. 2014-02-01T08:08:41.80 0.1 positive manual P 217 7.6812 137 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATFO.HHN. ML:1.6 0.0004615 0.2 AML other m 2014-02-01T08:08:45.09
IV.ATFO.HHE. ML:1.5 0.000389 0.46 AML other m 2014-02-01T08:08:45.07
IV.ATVO.HHE. ML:1.5 0.000507 0.54 AML other m 2014-02-01T08:08:43.51
IV.ATVO.HHN. ML:1.5 0.0005835 0.32 AML other m 2014-02-01T08:08:43.77
IV.BADI.EHE. ML:1.9 0.000642 0.12 AML other m 2014-02-01T08:08:47.39
IV.BADI.EHN. ML:1.8 0.0005204999999999999 0.66 AML other m 2014-02-01T08:08:47.47
IV.FSSB.HHN. ML:1.7 0.00019350000000000001 1.32 AML other m 2014-02-01T08:08:53.94
IV.FSSB.HHE. ML:1.6 0.00016450000000000001 1.56 AML other m 2014-02-01T08:08:58.54
IV.NARO.HHE. ML:1.4 0.000169 1.1 AML other m 2014-02-01T08:08:48.30
IV.NARO.HHN. ML:1.3 0.0001375 1.2 AML other m 2014-02-01T08:08:47.65
IV.PIEI.HHE. ML:1.8 0.0008365 1.32 AML other m 2014-02-01T08:08:45.17
IV.PIEI.HHN. ML:1.6 0.0004545 0.54 AML other m 2014-02-01T08:08:45.69
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