Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 01-02-2014 and time 11:57:00 (UTC) in region 8 km E Pietralunga (PG)

A magnitude ML 1.2 earthquake occured in region: 8 km E Pietralunga (PG), on

  • 01-02-2014 11:57:00 (UTC)
  • 01-02-2014 12:57:00 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4320, 12.5300 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 8 2111 2111
Cantiano PU 9 2245 4356
Gubbio PG 10 32216 36572
Scheggia e Pascelupo PG 12 1393 37965
Cagli PU 16 8731 46696
Apecchio PU 17 1882 48578
Costacciaro PG 17 1216 49794
Piobbico PU 18 2029 51823
Montone PG 18 1680 53503
Frontone PU 19 1300 54803

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km NE of Perugia (166134 inhabitants)
52 Km E of Arezzo (99543 inhabitants)
55 Km N of Foligno (57155 inhabitants)
61 Km SW of Fano (60888 inhabitants)
62 Km SW of Pesaro (94582 inhabitants)
70 Km S of Rimini (147750 inhabitants)
82 Km S of Cesena (96758 inhabitants)
82 Km W of Ancona (100861 inhabitants)
96 Km SE of Forlì (117913 inhabitants)
97 Km N of Terni (111501 inhabitants)
98 Km E of Siena (53903 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 2014-02-01
11:57:00		 43.4317 12.5302 8 2015-09-21
09:34:15		 Bollettino Sismico Italiano INGV 9159021
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-02-01 11:57:00 ± 0.13
Latitude 43.4317 ± 0.0027
Longitude 12.5302 ± 0.0050
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 9159021

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 450
Semi-minor axis of confidence ellipse (meter) 56
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 71
Circular confidence region, given by single value of horizontal uncertainty (meter) 450.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 117
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.25900
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 9159021
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2014-10-31 14:54:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2014-02-01T11:57:24.99 3.0 undecidable manual S -0.19 0
IV.ATCC.EHZ. 2014-02-01T11:57:11.26 0.3 undecidable manual S 162 28.749 105 0.48 66
IV.BADI.EHZ. 2014-02-01T11:57:09.45 0.3 undecidable manual S 291 24.5532 107 0.06 73
IV.MURB.HHZ. 2014-02-01T11:57:07.75 0.3 undecidable manual S 181 18.7701 112 0.27 70
IV.NARO.HHZ. 2014-02-01T11:57:07.99 0.3 undecidable manual S 12 20.2686 111 0.01 74
IV.ATCC.EHZ. 2014-02-01T11:57:06.24 0.1 undecidable manual P 162 28.749 105 -0.17 94
IV.PIEI.HHZ. 2014-02-01T11:57:05.53 0.3 undecidable manual S 2 11.5773 124 0.26 71
IV.ATPI.EHZ. 2014-02-01T11:57:05.11 0.3 undecidable manual S 282 10.4784 126 0.13 73
IV.BADI.EHZ. 2014-02-01T11:57:05.47 0.1 undecidable manual P 291 24.5532 107 -0.14 95
IV.FOSV.EHZ. 2014-02-01T11:57:05.60 0.1 undecidable manual P 129 24.0537 108 0.1 96
IV.MURB.HHZ. 2014-02-01T11:57:04.46 0.1 undecidable manual P 181 18.7701 112 -0.04 98
IV.NARO.HHZ. 2014-02-01T11:57:04.68 0.1 undecidable manual P 12 20.2686 111 -0.11 97
IV.ATVO.HHZ. 2014-02-01T11:57:03.10 0.1 undecidable manual P 241 11.3775 124 -0.1 98
IV.ATFO.HHZ. 2014-02-01T11:57:03.92 0.3 undecidable manual S 155 7.9809 134 -0.38 70
IV.PIEI.HHZ. 2014-02-01T11:57:03.29 0.1 undecidable manual P 2 11.5773 124 0.06 99
IV.ATPI.EHZ. 2014-02-01T11:57:03.03 0.1 positive manual P 282 10.4784 126 -0.03 100
IV.ATFO.HHZ. 2014-02-01T11:57:02.50 0.1 negative manual P 155 7.9809 134 -0.17 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATFO.HHN. ML:1.2 0.0002935 0.24 AML other m 2014-02-01T11:57:04.99
IV.ATFO.HHE. ML:1.1 0.00021700000000000002 0.7 AML other m 2014-02-01T11:57:05.38
IV.ATPI.EHE. ML:1.2 0.0002445 0.76 AML other m 2014-02-01T11:57:06.19
IV.ATPI.EHN. ML:1.2 0.0002175 1.18 AML other m 2014-02-01T11:57:06.13
IV.MURB.HHN. ML:1.5 0.00026450000000000003 1.36 AML other m 2014-02-01T11:57:08.77
IV.MURB.HHE. ML:1.4 0.0001855 0.2 AML other m 2014-02-01T11:57:08.54
IV.PIEI.HHN. ML:1.1 0.00016450000000000001 0.52 AML other m 2014-02-01T11:57:06.01
IV.PIEI.HHE. ML:1.2 0.00019700000000000002 1.26 AML other m 2014-02-01T11:57:05.83
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