Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.6 on date 25-04-2014 and time 23:10:00 (Italy) in region 5 km N Pietralunga (PG)

A magnitude ML 0.6 earthquake occured in region: 5 km N Pietralunga (PG), on

  • 25-04-2014 21:10:00 (UTC)
  • 25-04-2014 23:10:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4840, 12.4380 at 7 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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 5 2111 2111
Apecchio PU 9 1882 3993
Piobbico PU 13 2029 6022
Cantiano PU 15 2245 8267
Montone PG 16 1680 9947
Città di Castello PG 16 39913 49860
Cagli PU 18 8731 58591
Gubbio PG 18 32216 90807
Mercatello sul Metauro PU 20 1378 92185

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km N of Perugia (166134 inhabitants)
45 Km E of Arezzo (99543 inhabitants)
61 Km SW of Pesaro (94582 inhabitants)
62 Km SW of Fano (60888 inhabitants)
63 Km NW of Foligno (57155 inhabitants)
65 Km S of Rimini (147750 inhabitants)
74 Km S of Cesena (96758 inhabitants)
88 Km SE of Forlì (117913 inhabitants)
88 Km W of Ancona (100861 inhabitants)
91 Km E of Siena (53903 inhabitants)
100 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
Reviewed
Rev100 		ML 0.6 2014-04-25
21:10:00		 43.4838 12.438 7 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 6297621
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-04-25 21:10:00 ± 0.09
Latitude 43.4838 ± 0.0027
Longitude 12.4380 ± 0.0037
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 6297621

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 297
Semi-minor axis of confidence ellipse (meter) 116
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 54
Circular confidence region, given by single value of horizontal uncertainty (meter) 300.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86
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) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.04227
Epicentral distance of station farthest from the epicenter (degree) 0.22933
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:0.6

Field Value
Value 0.6
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 6297621
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2014-04-25 21:36:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MURB.HHZ. 2014-04-25T21:10:09.73 0.3 undecidable manual S 164 25.4523 105 0.3 68
IV.ATMI.HHZ. 2014-04-25T21:10:08.09 0.3 undecidable manual S 220 21.5673 108 -0.02 73
IV.BADI.EHZ. 2014-04-25T21:10:06.26 0.3 undecidable manual S 281 15.873 113 -0.01 74
IV.ATFO.HHZ. 2014-04-25T21:10:06.55 0.3 undecidable manual S 140 16.872 112 -0.05 73
IV.MURB.HHZ. 2014-04-25T21:10:05.52 0.1 undecidable manual P 164 25.4523 105 -0.04 96
IV.PARC.HHZ. 2014-04-25T21:10:05.56 0.1 undecidable manual P 319 24.3534 106 0.23 93
IV.ATVO.HHZ. 2014-04-25T21:10:05.09 0.6 undecidable manual S 193 11.5773 121 0.15 48
IV.ATMI.HHZ. 2014-04-25T21:10:04.64 0.1 undecidable manual P 220 21.5673 108 -0.16 94
IV.NARO.HHZ. 2014-04-25T21:10:04.00 0.3 positive manual P 39 18.1707 111 -0.17 71
IV.ATVO.HHZ. 2014-04-25T21:10:03.03 0.1 undecidable manual P 193 11.5773 121 0.06 98
IV.ATPI.EHZ. 2014-04-25T21:10:03.08 0.3 undecidable manual S 218 4.6953 146 -0.08 74
IV.BADI.EHZ. 2014-04-25T21:10:03.67 0.1 undecidable manual P 281 15.873 113 -0.06 97
IV.ATFO.HHZ. 2014-04-25T21:10:03.75 0.1 undecidable manual P 140 16.872 112 -0.17 95
IV.PIEI.HHZ. 2014-04-25T21:10:02.77 0.1 undecidable manual P 54 9.6792 125 0.12 97
IV.ATPI.EHZ. 2014-04-25T21:10:01.95 0.1 undecidable manual P 218 4.6953 146 0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATFO.HHN. ML:0.6 0.0000331 0.56 AML other m 2014-04-25T21:10:07.93
IV.ATFO.HHE. ML:0.5 0.00002845 2.98 AML other m 2014-04-25T21:10:08.74
IV.ATVO.HHE. ML:0.8 0.00007439999999999999 0.18 AML other m 2014-04-25T21:10:05.29
IV.ATVO.HHN. ML:0.6 0.0000606 3.18 AML other m 2014-04-25T21:10:06.88
IV.BADI.EHN. ML:0.7 0.00004770000000000001 2.3 AML other m 2014-04-25T21:10:06.38
IV.BADI.EHE. ML:0.7 0.00005505 0.12 AML other m 2014-04-25T21:10:07.75
IV.MURB.HHE. ML:0.8 0.000032550000000000005 0.3 AML other m 2014-04-25T21:10:10.20
IV.MURB.HHN. ML:0.8 0.0000353 3.38 AML other m 2014-04-25T21:10:11.01
IV.NARO.HHE. ML:0.4 0.0000223 0.06 AML other m 2014-04-25T21:10:08.26
IV.NARO.HHN. ML:0.4 0.000021649999999999998 0.16 AML other m 2014-04-25T21:10:08.84
IV.PIEI.HHN. ML:0.3 0.000030050000000000002 1.72 AML other m 2014-04-25T21:10:03.11
IV.PIEI.HHE. ML:0.5 0.00004435 0.08 AML other m 2014-04-25T21:10:03.37
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