Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.2 on date 25-05-2014 and time 04:25:02 (UTC) in region 6 km SW Apecchio (PU)

A magnitude ML 0.2 earthquake occured in region: 6 km SW Apecchio (PU), on

  • 25-05-2014 04:25:02 (UTC)
  • 25-05-2014 06:25:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.5180, 12.3640 at 6 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
Apecchio PU 6 1882 1882
Pietralunga PG 10 2111 3993
Città di Castello PG 12 39913 43906
Piobbico PU 14 2029 45935
Mercatello sul Metauro PU 15 1378 47313
San Giustino PG 16 11297 58610
Borgo Pace PU 17 606 59216
Sant'Angelo in Vado PU 17 4133 63349
Montone PG 17 1680 65029
Monte Santa Maria Tiberina PG 19 1183 66212
Sansepolcro AR 19 15884 82096

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km E of Arezzo (99543 inhabitants)
46 Km N of Perugia (166134 inhabitants)
62 Km SW of Pesaro (94582 inhabitants)
63 Km S of Rimini (147750 inhabitants)
64 Km SW of Fano (60888 inhabitants)
68 Km NW of Foligno (57155 inhabitants)
70 Km S of Cesena (96758 inhabitants)
83 Km SE of Forlì (117913 inhabitants)
86 Km E of Siena (53903 inhabitants)
93 Km E of Firenze (382808 inhabitants)
94 Km W of Ancona (100861 inhabitants)
94 Km SE of Faenza (58541 inhabitants)
99 Km E of Scandicci (50609 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 0.2 2014-05-25
04:25:02		 43.5182 12.3645 6 2015-09-21
09:36:50		 Bollettino Sismico Italiano INGV 16553991
Reviewed
Rev100 		ML 0.2 2014-05-25
04:25:02		 43.5232 12.345 1 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 6590231
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-05-25 04:25:02 ± 0.18
Latitude 43.5182 ± 0.0054
Longitude 12.3645 ± 0.0124
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 16553991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1142
Semi-minor axis of confidence ellipse (meter) 276
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 121
Circular confidence region, given by single value of horizontal uncertainty (meter) 1140.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 252
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
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) 0.07285
Epicentral distance of station farthest from the epicenter (degree) 0.61963
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:0.2

Field Value
Value 0.2
Uncertainty 0.1
Num. used stations 1
Type of magnitude ML
Reference to an origin 16553991
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-01-16 16:33:33

ML:0.2

Field Value
Value 0.2
Uncertainty 0.1
Num. used stations 1
Type of magnitude ML
Reference to an origin 6590231
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2014-05-25 04:54:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CING.HHZ. 2014-05-25T04:25:14.98 0.3 undecidable manual P 103 68.7756 50 -0.07 68
IV.NARO.HHZ. 2014-05-25T04:25:09.43 0.3 undecidable manual S 59 20.1687 106 -0.2 72
IV.ATVO.HHZ. 2014-05-25T04:25:08.17 0.3 undecidable manual S 167 15.4734 110 0.1 74
IV.PIEI.HHZ. 2014-05-25T04:25:07.67 0.1 undecidable manual S 82 13.875 112 0.12 99
IV.NARO.HHZ. 2014-05-25T04:25:06.60 0.3 undecidable manual P 59 20.1687 106 0.05 74
IV.PIEI.HHZ. 2014-05-25T04:25:05.41 0.1 undecidable manual P 82 13.875 112 0.06 100
IV.ATVO.HHZ. 2014-05-25T04:25:05.59 0.3 undecidable manual P 167 15.4734 110 -0.06 75
IV.ATPI.EHZ. 2014-05-25T04:25:05.62 0.1 undecidable manual S 158 8.0808 125 -0.17 99
IV.ATPI.EHZ. 2014-05-25T04:25:04.44 0.1 undecidable manual P 158 8.0808 125 0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PIEI.HHN. ML:0.1 0.000016 0.4 AML other m 2014-05-25T04:25:08.10
IV.PIEI.HHE. ML:0.2 0.0000203 0.42 AML other m 2014-05-25T04:25:08.12
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