Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 25-03-2014 and time 02:20:55 (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 02:20:55 (UTC)
  • 25-03-2014 03:20:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4900, 12.3920 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 8 1882 3993
Città di Castello PG 13 39913 43906
Piobbico PU 15 2029 45935
Montone PG 15 1680 47615
Mercatello sul Metauro PU 18 1378 48993
San Giustino PG 19 11297 60290
Cantiano PU 19 2245 62535
Monte Santa Maria Tiberina PG 19 1183 63718
Sant'Angelo in Vado PU 20 4133 67851

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km E of Arezzo (99543 inhabitants)
43 Km N of Perugia (166134 inhabitants)
63 Km SW of Pesaro (94582 inhabitants)
64 Km SW of Fano (60888 inhabitants)
65 Km NW of Foligno (57155 inhabitants)
65 Km S of Rimini (147750 inhabitants)
73 Km S of Cesena (96758 inhabitants)
86 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
02:20:55		 43.49 12.3917 8 2015-09-21
09:35:11		 Bollettino Sismico Italiano INGV 17320911
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-03-25 02:20:55 ± 0.09
Latitude 43.4900 ± 0.0027
Longitude 12.3917 ± 0.0037
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 17320911

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 326
Semi-minor axis of confidence ellipse (meter) 100
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 5
Circular confidence region, given by single value of horizontal uncertainty (meter) 330.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 55
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.04047
Epicentral distance of station farthest from the epicenter (degree) 0.34804
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 17320911
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-03-01 22:20:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PARC.HHZ. 2014-03-25T02:21:03.29 0.6 undecidable manual S 325 21.4674 110 0.19 47
IV.ATFO.HHZ. 2014-03-25T02:21:02.82 0.6 undecidable manual S 133 19.9689 112 0.21 47
IV.NARO.HHZ. 2014-03-25T02:21:02.64 0.6 undecidable manual S 49 20.2686 111 -0.07 49
IV.CAFI.HHZ. 2014-03-25T02:21:02.73 0.6 undecidable manual P 243 38.628 50 -0.2 46
IV.PE3.EHZ. 2014-03-25T02:21:00.41 1.0 undecidable manual P 20 24.3534 108 0.12 24
IV.ATVO.HHZ. 2014-03-25T02:21:00.27 0.3 undecidable manual S 174 12.0768 124 0.11 73
IV.MURB.HHZ. 2014-03-25T02:21:00.73 0.6 undecidable manual P 157 27.3504 106 -0.14 47
IV.PIEI.HHZ. 2014-03-25T02:21:00.82 0.6 undecidable manual S 66 12.5763 122 0.49 45
IV.CDCA.EHZ. 2014-03-25T02:21:00.49 0.6 undecidable manual S 255 13.1757 121 -0.01 50
IV.FRON.EHZ. 2014-03-25T02:21:00.50 0.6 undecidable manual P 83 27.0507 106 -0.31 46
IV.BADI.EHZ. 2014-03-25T02:21:00.10 0.3 undecidable manual S 280 12.0768 123 -0.07 74
IV.NARO.HHZ. 2014-03-25T02:20:59.27 0.1 undecidable manual P 49 20.2686 111 -0.25 94
IV.ATFO.HHZ. 2014-03-25T02:20:59.40 0.6 undecidable manual P 133 19.9689 112 -0.06 49
IV.ATMI.HHZ. 2014-03-25T02:20:59.91 0.6 undecidable manual P 210 19.9689 112 0.45 45
IV.PARC.HHZ. 2014-03-25T02:20:59.76 0.3 undecidable manual P 325 21.4674 110 0.02 74
IV.CDCA.EHZ. 2014-03-25T02:20:58.32 0.6 undecidable manual P 255 13.1757 121 0.08 49
IV.BADI.EHZ. 2014-03-25T02:20:58.07 0.3 undecidable manual P 280 12.0768 123 0.02 75
IV.ATVO.HHZ. 2014-03-25T02:20:58.16 0.3 positive manual P 174 12.0768 124 0.11 73
IV.PIEI.HHZ. 2014-03-25T02:20:58.24 0.1 undecidable manual P 66 12.5763 122 0.1 98
IV.ATPI.EHZ. 2014-03-25T02:20:57.96 0.3 undecidable manual S 169 4.4955 151 -0.36 70
IV.ATPI.EHZ. 2014-03-25T02:20:56.92 0.1 undecidable manual P 169 4.4955 151 -0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATVO.HHN. ML:0.7 0.00006534999999999999 1.26 AML other m 2014-03-25T02:21:01.00
IV.ATVO.HHE. ML:0.9 0.00008755 0.4 AML other m 2014-03-25T02:21:00.52
IV.PIEI.HHN. ML:0.9 0.00009440000000000002 0.3 AML other m 2014-03-25T02:21:01.00
IV.PIEI.HHE. ML:1.0 0.000112 0.16 AML other m 2014-03-25T02:21:01.45
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