Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.1 on date 22-05-2014 and time 22:42:46 (UTC) in region 7 km SW Apecchio (PU)

A magnitude ML 0.1 earthquake occured in region: 7 km SW Apecchio (PU), on

  • 22-05-2014 22:42:46 (UTC)
  • 23-05-2014 00:42:46 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.5120, 12.3580 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
Apecchio PU 7 1882 1882
Pietralunga PG 10 2111 3993
Città di Castello PG 11 39913 43906
San Giustino PG 15 11297 55203
Piobbico PU 15 2029 57232
Mercatello sul Metauro PU 15 1378 58610
Montone PG 17 1680 60290
Borgo Pace PU 17 606 60896
Sant'Angelo in Vado PU 18 4133 65029
Monte Santa Maria Tiberina PG 18 1183 66212
Sansepolcro AR 19 15884 82096
Citerna PG 19 3531 85627

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km E of Arezzo (99543 inhabitants)
45 Km N of Perugia (166134 inhabitants)
63 Km SW of Pesaro (94582 inhabitants)
63 Km S of Rimini (147750 inhabitants)
65 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 SE of Faenza (58541 inhabitants)
94 Km W of Ancona (100861 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
Reviewed
Rev100 		ML 0.1 2014-05-22
22:42:46		 43.5125 12.3578 7 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 6566641
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-05-22 22:42:46 ± 0.19
Latitude 43.5125 ± 0.0054
Longitude 12.3578 ± 0.0099
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 6566641

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 856
Semi-minor axis of confidence ellipse (meter) 372
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 299
Circular confidence region, given by single value of horizontal uncertainty (meter) 860.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 165
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.18886
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.1

Field Value
Value 0.1
Uncertainty 0.1
Num. used stations 1
Type of magnitude ML
Reference to an origin 6566641
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2014-05-22 22:56:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MTGR.SHZ. 2014-05-22T22:44:16.99 3.0 undecidable manual Sn -4.49 0
GU.RRL.HHZ. 2014-05-22T22:43:46.08 3.0 undecidable manual Pg 9.95 0
IV.BOB.HHZ. 2014-05-22T22:43:45.99 3.0 undecidable manual Sn -9.68 0
GU.CIRO.HHZ. 2014-05-22T22:43:44.71 3.0 negative manual Pg 8.7 0
IV.PII.HHZ. 2014-05-22T22:43:36.99 3.0 undecidable manual Sg 10.21 0
SI.BOSI.HHZ. 2014-05-22T22:43:35.64 3.0 positive manual Pg 5.29 0
IV.NOCI.HHZ. 2014-05-22T22:43:23.24 3.0 undecidable manual Pn -2.09 0
BA.PZUN.HHZ. 2014-05-22T22:43:21.48 3.0 positive manual Pg 6.51 0
CR.STON.BHZ. 2014-05-22T22:43:19.28 3.0 undecidable manual Pn -8.64 0
IV.GUMA.HNZ. 2014-05-22T22:43:12.99 3.0 undecidable manual Sn -0.51 0
IV.PP3.EHZ. 2014-05-22T22:43:02.89 3.0 negative manual Pg 7.21 0
IV.NARO.HHZ. 2014-05-22T22:42:53.65 0.6 undecidable manual S 59 20.9679 109 -0.29 47
IV.ATVO.HHZ. 2014-05-22T22:42:52.08 0.6 undecidable manual S 165 14.9739 116 0.06 50
IV.PIEI.HHZ. 2014-05-22T22:42:51.75 0.6 undecidable manual S 80 14.4744 116 -0.11 50
IV.NARO.HHZ. 2014-05-22T22:42:50.63 0.1 undecidable manual P 59 20.9679 109 -0.06 100
IV.APEC.HHZ. 2014-05-22T22:42:50.02 0.6 undecidable manual S 44 7.0929 135 0.26 49
IV.PIEI.HHZ. 2014-05-22T22:42:49.59 0.1 undecidable manual P 80 14.4744 116 0.1 100
IV.ATVO.HHZ. 2014-05-22T22:42:49.76 0.1 undecidable manual P 165 14.9739 116 0.17 98
IV.ATPI.EHZ. 2014-05-22T22:42:49.64 0.6 undecidable manual S 153 7.6812 133 -0.27 49
IV.ATPI.EHZ. 2014-05-22T22:42:48.45 0.6 undecidable manual P 153 7.6812 133 0.09 51
IV.APEC.HHZ. 2014-05-22T22:42:48.61 1.0 undecidable manual P 44 7.0929 135 0.33 24
IV.CDCA.EHZ. 2014-05-22T22:42:48.69 0.6 positive manual P 239 11.6772 122 -0.31 48
IV.ARCI.HHZ. 2014-05-22T22:42:45.52 3.0 positive manual Pn -2.94 0
IV.MA9.HHZ. 2014-05-22T22:42:45.29 3.0 undecidable manual Pn -1.51 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PIEI.HHN. ML:0.0 0.00001235 1.16 AML other m 2014-05-22T22:42:52.13
IV.PIEI.HHE. ML:0.1 0.0000149 0.42 AML other m 2014-05-22T22:42:52.61
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