Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 25-03-2014 and time 03:25:39 (UTC) in region 6 km NW Pietralunga (PG)

A magnitude ML 0.9 earthquake occured in region: 6 km NW Pietralunga (PG), on

  • 25-03-2014 03:25:39 (UTC)
  • 25-03-2014 04:25:39 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4820, 12.3930 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 6 2111 2111
Apecchio PU 9 1882 3993
Città di Castello PG 13 39913 43906
Montone PG 14 1680 45586
Piobbico PU 15 2029 47615
San Giustino PG 19 11297 58912
Cantiano PU 19 2245 61157
Mercatello sul Metauro PU 19 1378 62535
Monte Santa Maria Tiberina PG 19 1183 63718

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km E of Arezzo (99543 inhabitants)
42 Km N of Perugia (166134 inhabitants)
64 Km SW of Pesaro (94582 inhabitants)
64 Km NW of Foligno (57155 inhabitants)
65 Km SW of Fano (60888 inhabitants)
66 Km S of Rimini (147750 inhabitants)
74 Km S of Cesena (96758 inhabitants)
87 Km SE of Forlì (117913 inhabitants)
88 Km E of Siena (53903 inhabitants)
92 Km W of Ancona (100861 inhabitants)
97 Km E of Firenze (382808 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 0.9 2014-03-25
03:25:39		 43.4823 12.3932 8 2015-09-21
09:35:11		 Bollettino Sismico Italiano INGV 17321171
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-03-25 03:25:39 ± 0.14
Latitude 43.4823 ± 0.0045
Longitude 12.3932 ± 0.0062
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 17321171

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 497
Semi-minor axis of confidence ellipse (meter) 193
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 78
Circular confidence region, given by single value of horizontal uncertainty (meter) 500.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 72
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.03238
Epicentral distance of station farthest from the epicenter (degree) 0.28598
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 5
Type of magnitude ML
Reference to an origin 17321171
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-03-01 22:51:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATFO.HHZ. 2014-03-25T03:25:46.89 0.6 undecidable manual S 132 19.2696 113 0.27 46
IV.ATTE.HHZ. 2014-03-25T03:25:45.87 0.6 undecidable manual P 186 31.746 104 -0.05 47
IV.PIEI.HHZ. 2014-03-25T03:25:45.05 0.6 undecidable manual S 63 12.876 122 0.41 45
IV.PARC.HHZ. 2014-03-25T03:25:44.17 0.3 undecidable manual P 326 22.2555 110 0.07 72
IV.FRON.EHZ. 2014-03-25T03:25:44.77 0.3 undecidable manual P 82 27.0507 107 -0.25 69
IV.BADI.EHZ. 2014-03-25T03:25:44.40 0.6 undecidable manual S 284 12.3765 123 -0.09 49
IV.ATVO.HHZ. 2014-03-25T03:25:44.47 0.6 undecidable manual S 174 11.1777 126 0.31 47
IV.MURB.HHZ. 2014-03-25T03:25:44.85 0.6 undecidable manual P 156 26.5512 107 -0.07 48
IV.PE3.EHZ. 2014-03-25T03:25:44.82 0.3 undecidable manual P 19 25.1526 108 0.17 70
IV.ATMI.HHZ. 2014-03-25T03:25:43.75 0.6 undecidable manual P 212 19.2696 113 0.2 47
IV.ATFO.HHZ. 2014-03-25T03:25:43.00 0.3 undecidable manual P 132 19.2696 113 -0.55 65
IV.NARO.HHZ. 2014-03-25T03:25:43.58 0.3 undecidable manual P 47 20.7681 111 -0.24 70
IV.ATVO.HHZ. 2014-03-25T03:25:42.38 0.1 positive manual P 174 11.1777 126 0.25 94
IV.ATPI.EHZ. 2014-03-25T03:25:42.14 0.3 undecidable manual S 168 3.5964 156 -0.31 71
IV.PIEI.HHZ. 2014-03-25T03:25:42.53 0.1 undecidable manual P 63 12.876 122 0.12 97
IV.BADI.EHZ. 2014-03-25T03:25:42.30 0.1 undecidable manual P 284 12.3765 123 -0.02 99
IV.ATPI.EHZ. 2014-03-25T03:25:41.11 0.1 undecidable manual P 168 3.5964 156 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATFO.HHN. ML:0.8 0.0000445 1.42 AML other m 2014-03-25T03:25:49.65
IV.ATFO.HHE. ML:0.8 0.0000518 1.58 AML other m 2014-03-25T03:25:50.51
IV.ATVO.HHN. ML:0.8 0.00007335 0.14 AML other m 2014-03-25T03:25:44.63
IV.ATVO.HHE. ML:1.0 0.00013350000000000002 1.38 AML other m 2014-03-25T03:25:44.73
IV.BADI.EHN. ML:1.1 0.000145 0.14 AML other m 2014-03-25T03:25:44.74
IV.BADI.EHE. ML:1.1 0.00014700000000000002 0.34 AML other m 2014-03-25T03:25:44.63
IV.NARO.HHE. ML:0.7 0.00003785 1.04 AML other m 2014-03-25T03:25:47.82
IV.NARO.HHN. ML:0.7 0.00004105 1.58 AML other m 2014-03-25T03:25:48.66
IV.PIEI.HHN. ML:0.8 0.00006284999999999998 0.48 AML other m 2014-03-25T03:25:45.70
IV.PIEI.HHE. ML:1.0 0.00010895 0.46 AML other m 2014-03-25T03:25:45.71
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