Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 21-05-2014 and time 23:14:55 (UTC) in region 4 km NE Sellano (PG)

A magnitude ML 0.7 earthquake occured in region: 4 km NE Sellano (PG), on

  • 21-05-2014 23:14:55 (UTC)
  • 22-05-2014 01:14:55 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9140, 12.9650 at 12 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
Sellano PG 4 1079 1079
Preci PG 7 724 1803
Monte Cavallo MC 10 145 1948
Visso MC 10 1107 3055
Cerreto di Spoleto PG 11 1075 4130
Ussita MC 15 444 4574
Castelsantangelo sul Nera MC 16 281 4855
Pieve Torina MC 16 1458 6313
Norcia PG 17 4957 11270
Fiordimonte MC 17 202 11472
Serravalle di Chienti MC 18 1070 12542
Vallo di Nera PG 18 364 12906
Trevi PG 18 8469 21375
Campello sul Clitunno PG 18 2442 23817
Pievebovigliana MC 19 866 24683
Muccia MC 20 915 25598

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km E of Foligno (57155 inhabitants)
47 Km NE of Terni (111501 inhabitants)
52 Km E of Perugia (166134 inhabitants)
67 Km W of Teramo (54892 inhabitants)
72 Km NW of L'Aquila (69753 inhabitants)
89 Km NE of Viterbo (67173 inhabitants)
90 Km SW of Ancona (100861 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 2014-05-21
23:14:55		 42.9138 12.9648 12 2015-09-21
09:36:50		 Bollettino Sismico Italiano INGV 17448221
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-05-21 23:14:55 ± 0.06
Latitude 42.9138 ± 0.0027
Longitude 12.9648 ± 0.0037
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 17448221

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 370
Semi-minor axis of confidence ellipse (meter) 12
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 34
Circular confidence region, given by single value of horizontal uncertainty (meter) 370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 174
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) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.10072
Epicentral distance of station farthest from the epicenter (degree) 0.36063
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.4
Num. used stations 3
Type of magnitude ML
Reference to an origin 17448221
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-03-09 11:03:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2014-05-21T23:15:05.22 0.6 undecidable manual S 45 27.75 93 0 49
IV.ASSB.HHZ. 2014-05-21T23:15:05.32 0.6 undecidable manual S 300 28.6491 93 -0.15 47
IV.ATCC.EHZ. 2014-05-21T23:15:03.02 0.3 undecidable manual P 319 40.0266 92 0.08 71
IV.FDMO.HHZ. 2014-05-21T23:15:02.20 0.6 undecidable manual S 36 16.872 100 -0.13 49
IV.SNTG.HHZ. 2014-05-21T23:15:02.69 0.3 undecidable manual P 357 37.9287 92 0.07 71
IV.CSP1.EHZ. 2014-05-21T23:15:01.03 0.1 undecidable manual P 45 27.75 93 -0.02 98
IV.NRCA.HHZ. 2014-05-21T23:15:01.76 0.3 undecidable manual S 126 15.0738 105 -0.11 73
IV.ASSB.HHZ. 2014-05-21T23:15:01.06 0.1 undecidable manual P 300 28.6491 93 -0.14 95
IV.CESI.HHZ. 2014-05-21T23:15:00.90 0.3 undecidable manual S 334 11.1777 120 -0.02 75
IV.NRCA.HHZ. 2014-05-21T23:14:59.19 0.1 undecidable manual P 126 15.0738 105 0.07 100
IV.FDMO.HHZ. 2014-05-21T23:14:59.38 0.1 undecidable manual P 36 16.872 100 0 100
IV.CESI.HHZ. 2014-05-21T23:14:58.73 0.1 negative manual P 334 11.1777 120 0.16 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:0.1 0.000017099999999999996 0.38 AML other m 2014-05-21T23:15:01.15
IV.CESI.HHN. ML:0.4 0.0000293 1.16 AML other m 2014-05-21T23:15:01.07
IV.FDMO.HHN. ML:0.6 0.000030200000000000002 0.4 AML other m 2014-05-21T23:15:02.38
IV.FDMO.HHE. ML:0.6 0.000037250000000000004 0.16 AML other m 2014-05-21T23:15:02.40
IV.NRCA.HHN. ML:1.2 0.000157 0.58 AML other m 2014-05-21T23:15:02.00
IV.NRCA.HHE. ML:1.0 0.00009609999999999999 0.72 AML other m 2014-05-21T23:15:02.41
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