Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 20-03-2014 and time 23:12:11 (Italy) in region 3 km E Pietralunga (PG)

A magnitude ML 0.7 earthquake occured in region: 3 km E Pietralunga (PG), on

  • 20-03-2014 22:12:11 (UTC)
  • 20-03-2014 23:12:11 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4330, 12.4670 at 9 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 3 2111 2111
Gubbio PG 13 32216 34327
Montone PG 14 1680 36007
Cantiano PU 14 2245 38252
Apecchio PU 15 1882 40134
Scheggia e Pascelupo PG 17 1393 41527
Piobbico PU 18 2029 43556
Umbertide PG 18 16681 60237
Città di Castello PG 19 39913 100150
Cagli PU 19 8731 108881

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km N of Perugia (166134 inhabitants)
47 Km E of Arezzo (99543 inhabitants)
56 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)
80 Km S of Cesena (96758 inhabitants)
87 Km W of Ancona (100861 inhabitants)
93 Km E of Siena (53903 inhabitants)
94 Km SE of Forlì (117913 inhabitants)
98 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 0.7 2014-03-20
22:12:11		 43.4333 12.4667 9 2015-09-21
09:35:11		 Bollettino Sismico Italiano INGV 7356171
Reviewed
Rev100 		ML 0.7 2014-03-20
22:12:11		 43.4333 12.4667 9 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 5812281
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-03-20 22:12:11 ± 0.07
Latitude 43.4333 ± 0.0027
Longitude 12.4667 ± 0.0050
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 7356171

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 340
Semi-minor axis of confidence ellipse (meter) 195
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 255
Circular confidence region, given by single value of horizontal uncertainty (meter) 340.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 129
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.10162
Epicentral distance of station farthest from the epicenter (degree) 0.27789
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 7356171
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2014-07-17 07:26:45

ML:0.7

Field Value
Value 0.7
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 5812281
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2014-03-20 22:17:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATCC.EHZ. 2014-03-20T22:12:22.78 0.6 undecidable manual S 153 30.8469 106 0.16 45
IV.MURB.HHZ. 2014-03-20T22:12:19.07 0.6 undecidable manual S 166 19.4694 114 0.18 49
IV.BADI.EHZ. 2014-03-20T22:12:19.00 0.6 undecidable manual S 295 19.7691 114 0 50
IV.NARO.HHZ. 2014-03-20T22:12:19.50 0.6 undecidable manual S 25 21.7671 112 -0.11 49
IV.PIEI.HHZ. 2014-03-20T22:12:17.10 0.6 undecidable manual S 26 12.5763 125 0.28 48
IV.ATCC.EHZ. 2014-03-20T22:12:17.81 1.0 undecidable manual P 153 30.8469 106 -0.09 24
IV.NARO.HHZ. 2014-03-20T22:12:16.01 0.6 undecidable manual P 25 21.7671 112 -0.16 49
IV.ATFO.HHZ. 2014-03-20T22:12:16.29 0.6 undecidable manual S 131 11.2776 128 -0.14 49
IV.MURB.HHZ. 2014-03-20T22:12:15.76 1.0 undecidable manual P 166 19.4694 114 0 25
IV.BADI.EHZ. 2014-03-20T22:12:15.78 0.1 undecidable manual P 295 19.7691 114 -0.03 100
IV.ATFO.HHZ. 2014-03-20T22:12:14.24 0.1 negative manual P 131 11.2776 128 -0.09 100
IV.PIEI.HHZ. 2014-03-20T22:12:14.69 0.6 undecidable manual P 26 12.5763 125 0.13 49
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MURB.HHN. ML:0.8 0.00004585 1.52 AML other m 2014-03-20T22:12:20.56
IV.MURB.HHE. ML:0.8 0.00004435 0.74 AML other m 2014-03-20T22:12:21.71
IV.PIEI.HHN. ML:0.6 0.00005115 1.14 AML other m 2014-03-20T22:12:17.78
IV.PIEI.HHE. ML:0.8 0.00007705 0.16 AML other m 2014-03-20T22:12:17.87
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