Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 25-03-2014 and time 03:05:57 (UTC) in region 7 km NW Pietralunga (PG)

A magnitude ML 0.8 earthquake occured in region: 7 km NW Pietralunga (PG), on

  • 25-03-2014 03:05:57 (UTC)
  • 25-03-2014 04:05:57 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4860, 12.3810 at 10 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 7 2111 2111
Apecchio PU 9 1882 3993
Città di Castello PG 12 39913 43906
Montone PG 14 1680 45586
Piobbico PU 16 2029 47615
San Giustino PG 18 11297 58912
Monte Santa Maria Tiberina PG 18 1183 60095
Mercatello sul Metauro PU 18 1378 61473

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 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)
73 Km S of Cesena (96758 inhabitants)
86 Km SE of Forlì (117913 inhabitants)
87 Km E of Siena (53903 inhabitants)
93 Km W of Ancona (100861 inhabitants)
96 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 0.8 2014-03-25
03:05:57		 43.4858 12.3813 10 2015-09-21
09:35:11		 Bollettino Sismico Italiano INGV 17320991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-03-25 03:05:57 ± 0.14
Latitude 43.4858 ± 0.0072
Longitude 12.3813 ± 0.0074
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 17320991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 677
Semi-minor axis of confidence ellipse (meter) 630
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 333
Circular confidence region, given by single value of horizontal uncertainty (meter) 680.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 99
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.03867
Epicentral distance of station farthest from the epicenter (degree) 0.25181
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.1
Num. used stations 3
Type of magnitude ML
Reference to an origin 17320991
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-03-01 22:32:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FRON.EHZ. 2014-03-25T03:06:07.46 0.6 undecidable manual S 83 27.9498 50 -0.12 47
IV.FRON.EHZ. 2014-03-25T03:06:03.17 0.3 undecidable manual P 83 27.9498 50 -0.14 70
IV.PE3.EHZ. 2014-03-25T03:06:03.08 0.6 undecidable manual P 22 25.0527 50 0.21 46
IV.CDCA.EHZ. 2014-03-25T03:06:03.14 0.6 undecidable manual S 256 12.2766 130 0.14 48
IV.PIEI.HHZ. 2014-03-25T03:06:03.57 0.6 undecidable manual S 66 13.5753 127 0.22 47
IV.BADI.EHZ. 2014-03-25T03:06:02.77 0.1 undecidable manual S 283 11.3775 132 0.01 99
IV.ATFO.HHZ. 2014-03-25T03:06:02.11 0.3 undecidable manual P 131 20.2686 117 0.1 72
IV.ATVO.HHZ. 2014-03-25T03:06:02.99 0.6 undecidable manual S 170 11.6772 131 0.14 48
IV.NARO.HHZ. 2014-03-25T03:06:02.02 0.1 undecidable manual P 49 21.1677 116 -0.16 95
IV.ATVO.HHZ. 2014-03-25T03:06:00.92 0.1 undecidable manual P 170 11.6772 131 0.34 92
IV.ATPI.EHZ. 2014-03-25T03:06:00.78 0.3 undecidable manual S 157 4.2957 157 -0.52 68
IV.PIEI.HHZ. 2014-03-25T03:06:00.96 0.1 undecidable manual P 66 13.5753 127 0.1 97
IV.BADI.EHZ. 2014-03-25T03:06:00.73 0.1 undecidable manual P 283 11.3775 132 0.21 95
IV.ATPI.EHZ. 2014-03-25T03:05:59.66 0.1 undecidable manual P 157 4.2957 157 -0.02 100
IV.CDCA.EHZ. 2014-03-25T03:05:59.72 0.6 undecidable manual P 256 12.2766 130 -0.94 37
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATVO.HHE. ML:0.7 0.0000549 0.18 AML other m 2014-03-25T03:06:03.33
IV.ATVO.HHN. ML:0.6 0.0000502 0.48 AML other m 2014-03-25T03:06:03.36
IV.FRON.EHN. ML:1.0 0.00004965 1.56 AML other m 2014-03-25T03:06:09.03
IV.FRON.EHE. ML:0.8 0.00003747 1.54 AML other m 2014-03-25T03:06:24.32
IV.PIEI.HHE. ML:0.8 0.00006829999999999999 0.8 AML other m 2014-03-25T03:06:04.24
IV.PIEI.HHN. ML:0.7 0.000048799999999999994 0.16 AML other m 2014-03-25T03:06:03.92
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