Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.5 on date 09-06-2021 and time 04:33:00 (Italy) in region 7 km W Sellano (PG)

A magnitude ML 0.5 earthquake occured in region: 7 km W Sellano (PG), on

  • 09-06-2021 02:33:00 (UTC)
  • 09-06-2021 04:33:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9220, 12.8500 at 10 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 7 1079 1079
Trevi PG 10 8469 9548
Foligno PG 12 57155 66703
Campello sul Clitunno PG 13 2442 69145
Cerreto di Spoleto PG 13 1075 70220
Monte Cavallo MC 15 145 70365
Preci PG 16 724 71089
Montefalco PG 16 5679 76768
Spello PG 17 8645 85413
Vallo di Nera PG 17 364 85777
Valtopina PG 17 1398 87175
Castel Ritaldi PG 18 3278 90453
Serravalle di Chienti MC 19 1070 91523
Visso MC 20 1107 92630
Bevagna PG 20 5081 97711

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km E of Foligno (57155 inhabitants)
43 Km E of Perugia (166134 inhabitants)
43 Km NE of Terni (111501 inhabitants)
76 Km W of Teramo (54892 inhabitants)
78 Km NW of L'Aquila (69753 inhabitants)
83 Km NE of Viterbo (67173 inhabitants)
95 Km SW of Ancona (100861 inhabitants)
99 Km SE of Arezzo (99543 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 0.5 2021-06-09
02:33:00		 42.9218 12.8497 10 2021-12-29
11:12:09		 Bollettino Sismico Italiano INGV 92360641
Reviewed
Rev100 		ML 0.6 2021-06-09
02:33:00		 42.9288 12.8547 13 2021-06-09
02:39:32		 Sala Sismica INGV-Roma 90957241
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-06-09 02:33:00 ± 0.06
Latitude 42.9218 ± 0.0036
Longitude 12.8497 ± 0.0049
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 92360641

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 359
Semi-minor axis of confidence ellipse (meter) 354
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 115
Circular confidence region, given by single value of horizontal uncertainty (meter) 360.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 71
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.09173
Epicentral distance of station farthest from the epicenter (degree) 0.36782
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 92360641
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-07-07 13:36:02

ML:0.6

Field Value
Value 0.6
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 90957241
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-06-09 02:39:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LNSS.HNZ. 2021-06-09T02:33:14.06 0.6 undecidable manual S 156 38.628 50 0.46 44
IV.CESX.HHE. 2021-06-09T02:33:14.26 0.6 undecidable manual S 212 40.8258 50 0.08 47
IV.CSP1.EHZ. 2021-06-09T02:33:12.26 0.3 undecidable manual S 57 34.4433 50 -0.21 70
IV.ATCC.EHZ. 2021-06-09T02:33:12.35 0.3 undecidable manual S 330 33.8439 50 0.05 72
IV.MOMA.HNZ. 2021-06-09T02:33:10.41 0.6 undecidable manual S 240 26.2515 50 0.12 48
IV.GAVE.HNZ. 2021-06-09T02:33:10.31 0.6 undecidable manual S 172 25.752 50 0.16 48
IV.MC2.EHZ. 2021-06-09T02:33:10.99 0.3 undecidable manual S 92 27.5502 50 0.34 68
IV.NRCA.HHZ. 2021-06-09T02:33:09.41 0.3 undecidable manual S 114 23.6541 113 -0.07 73
IV.MML1.EHZ. 2021-06-09T02:33:09.27 0.6 undecidable manual S 25 23.4543 113 -0.15 48
IV.ASSB.HHZ. 2021-06-09T02:33:08.45 0.3 undecidable manual S 311 20.4684 116 -0.04 74
IV.CESX.HHE. 2021-06-09T02:33:08.03 0.1 undecidable manual P 212 40.8258 50 -0.4 88
IV.FDMO.HHZ. 2021-06-09T02:33:08.89 0.3 undecidable manual S 57 23.0547 113 -0.42 68
IV.PF6.EHN. 2021-06-09T02:33:08.14 0.6 undecidable manual P 49 36.8298 50 0.33 45
IV.ATCC.EHZ. 2021-06-09T02:33:07.16 0.3 undecidable manual P 330 33.8439 50 -0.19 70
IV.CSP1.EHZ. 2021-06-09T02:33:07.25 0.3 undecidable manual P 57 34.4433 50 -0.2 70
IV.LNSS.HNZ. 2021-06-09T02:33:07.74 0.1 undecidable manual P 156 38.628 50 -0.36 89
IT.MTCL.HGZ. 2021-06-09T02:33:06.74 0.6 undecidable manual S 57 14.5743 124 0.04 50
IV.MOMA.HNZ. 2021-06-09T02:33:06.33 0.1 undecidable manual P 240 26.2515 50 0.14 95
IV.MC2.EHZ. 2021-06-09T02:33:06.81 0.3 undecidable manual P 92 27.5502 50 0.42 67
IV.MML1.EHZ. 2021-06-09T02:33:05.54 0.3 undecidable manual P 25 23.4543 113 -0.15 72
IV.ASSB.HHZ. 2021-06-09T02:33:05.22 0.3 undecidable manual P 311 20.4684 116 0.07 73
IV.FDMO.HHZ. 2021-06-09T02:33:05.46 0.3 undecidable manual P 57 23.0547 113 -0.16 72
IV.GAVE.HNZ. 2021-06-09T02:33:05.97 0.1 undecidable manual P 172 25.752 50 -0.14 96
IV.CESI.HHZ. 2021-06-09T02:33:05.97 0.3 undecidable manual S 26 10.1787 134 0.43 69
IV.NRCA.HHZ. 2021-06-09T02:33:05.71 0.3 undecidable manual P 114 23.6541 113 -0.01 74
IT.MTCL.HGZ. 2021-06-09T02:33:04.13 0.1 undecidable manual P 57 14.5743 124 0.02 100
IV.CESI.HHZ. 2021-06-09T02:33:03.86 0.3 undecidable manual P 26 10.1787 134 0.42 69
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:0.6 0.0000525 0.34 AML other m 2021-06-09T02:33:06.15
IV.CESI.HHN. ML:0.4 0.000035449999999999994 0.28 AML other m 2021-06-09T02:33:06.33
IV.ASSB.HHE. ML:0.5 0.000024599999999999998 0.52 AML other m 2021-06-09T02:33:08.74
IV.ASSB.HHN. ML:0.4 0.0000217 1.86 AML other m 2021-06-09T02:33:08.02
IV.FDMO.HHN. ML:0.5 0.0000191 1.46 AML other m 2021-06-09T02:33:09.13
IV.FDMO.HHE. ML:0.2 0.000012285 0.36 AML other m 2021-06-09T02:33:09.30
IV.NRCA.HHE. ML:0.7 0.00003105 0.58 AML other m 2021-06-09T02:33:09.57
IV.NRCA.HHN. ML:0.8 0.000032550000000000005 1.88 AML other m 2021-06-09T02:33:10.94
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