Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 01-02-2014 and time 04:01:55 (UTC) in region 2 km E Pietralunga (PG)

A magnitude ML 1.4 earthquake occured in region: 2 km E Pietralunga (PG), on

  • 01-02-2014 04:01:55 (UTC)
  • 01-02-2014 05:01:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4410, 12.4570 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
Montone PG 13 1680 3791
Apecchio PU 14 1882 5673
Gubbio PG 14 32216 37889
Cantiano PU 14 2245 40134
Piobbico PU 17 2029 42163
Scheggia e Pascelupo PG 18 1393 43556
Città di Castello PG 18 39913 83469
Umbertide PG 18 16681 100150
Cagli PU 20 8731 108881

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km N of Perugia (166134 inhabitants)
46 Km E of Arezzo (99543 inhabitants)
58 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)
79 Km S of Cesena (96758 inhabitants)
88 Km W of Ancona (100861 inhabitants)
92 Km E of Siena (53903 inhabitants)
93 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 1.4 2014-02-01
04:01:55		 43.4408 12.4567 8 2015-09-21
09:34:15		 Bollettino Sismico Italiano INGV 9155031
Reviewed
Rev100 		ML 1.5 2014-02-01
04:01:55		 43.4397 12.4607 6 2015-08-12
08:16:01		 Sala Sismica INGV-Roma 5426301
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-02-01 04:01:55 ± 0.08
Latitude 43.4408 ± 0.0036
Longitude 12.4567 ± 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 9155031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 415
Semi-minor axis of confidence ellipse (meter) 319
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 157
Circular confidence region, given by single value of horizontal uncertainty (meter) 420.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 83
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 23
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) 0.04047
Epicentral distance of station farthest from the epicenter (degree) 0.35613
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:1.5

Field Value
Value 1.5
Uncertainty 0.1
Num. used stations 1
Type of magnitude ML
Reference to an origin 5426301
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2014-02-01 04:13:18

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 2
Type of magnitude ML
Reference to an origin 9155031
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2014-10-31 08:21:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2014-02-01T04:02:09.14 0.3 undecidable manual S 81 39.5271 50 0.05 71
IV.FSSB.HHZ. 2014-02-01T04:02:08.72 0.3 undecidable manual S 43 38.0286 50 0.03 71
IV.PE3.EHZ. 2014-02-01T04:02:06.17 0.3 undecidable manual S 6 28.4493 106 0.5 66
IV.MURB.HHZ. 2014-02-01T04:02:03.57 0.3 undecidable manual S 164 20.4684 111 0.53 66
IV.NARO.HHZ. 2014-02-01T04:02:03.10 0.3 undecidable manual S 28 21.3675 111 -0.21 71
IV.FRON.EHZ. 2014-02-01T04:02:03.90 0.3 undecidable manual S 68 23.2545 109 -0.05 73
IV.BADI.EHZ. 2014-02-01T04:02:02.75 0.3 undecidable manual S 294 18.7701 113 0.27 70
IV.FSSB.HHZ. 2014-02-01T04:02:02.72 0.3 undecidable manual P 43 38.0286 50 -0.35 67
IV.ARVD.HHZ. 2014-02-01T04:02:02.97 0.1 undecidable manual P 81 39.5271 50 -0.34 89
IV.CDCA.EHZ. 2014-02-01T04:02:02.38 0.3 undecidable manual S 276 18.0708 114 0.11 73
IV.PE3.EHZ. 2014-02-01T04:02:01.47 0.3 undecidable manual P 6 28.4493 106 0.14 71
IV.ATTE.HHZ. 2014-02-01T04:02:01.28 0.6 undecidable manual P 197 28.2495 106 0 49
IV.FRON.EHZ. 2014-02-01T04:02:00.24 0.1 positive manual P 68 23.2545 109 -0.1 96
IV.PIEI.HHZ. 2014-02-01T04:02:00.76 0.3 undecidable manual S 31 12.2766 123 0.27 71
IV.MURB.HHZ. 2014-02-01T04:02:00.09 0.1 undecidable manual P 164 20.4684 111 0.27 93
IV.NARO.HHZ. 2014-02-01T04:01:59.80 0.1 undecidable manual P 28 21.3675 111 -0.17 95
IV.CDCA.EHZ. 2014-02-01T04:01:59.47 0.1 negative manual P 276 18.0708 114 0.1 97
IV.BADI.EHZ. 2014-02-01T04:01:59.49 0.1 positive manual P 294 18.7701 113 0 99
IV.PIEI.HHZ. 2014-02-01T04:01:58.56 0.1 undecidable manual P 31 12.2766 123 0.22 96
IV.ATVO.HHZ. 2014-02-01T04:01:58.94 0.3 undecidable manual S 212 7.6812 136 -0.32 71
IV.ATPI.EHZ. 2014-02-01T04:01:57.98 0.3 undecidable manual S 284 4.4955 151 -0.63 65
IV.ATPI.EHZ. 2014-02-01T04:01:57.05 0.1 positive manual P 284 4.4955 151 -0.2 97
IV.ATVO.HHZ. 2014-02-01T04:01:57.60 0.1 positive manual P 212 7.6812 136 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATVO.HHE. ML:1.3 0.0003355 1.48 AML other m 2014-02-01T04:01:59.31
IV.ATVO.HHN. ML:1.1 0.000215 0.58 AML other m 2014-02-01T04:02:02.10
IV.PIEI.HHE. ML:1.4 0.0003215 0.78 AML other m 2014-02-01T04:02:01.26
IV.PIEI.HHN. ML:1.6 0.0004575 0.34 AML other m 2014-02-01T04:02:01.24
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