Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 16-06-2021 and time 18:04:37 (UTC) in region 6 km N Sellano (PG)

A magnitude ML 1.0 earthquake occured in region: 6 km N Sellano (PG), on

  • 16-06-2021 18:04:37 (UTC)
  • 16-06-2021 20:04:37 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9440, 12.9110 at 13 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
Sellano PG 6 1079 1079
Monte Cavallo MC 9 145 1224
Preci PG 13 724 1948
Cerreto di Spoleto PG 14 1075 3023
Visso MC 15 1107 4130
Serravalle di Chienti MC 15 1070 5200
Trevi PG 15 8469 13669
Pieve Torina MC 16 1458 15127
Foligno PG 17 57155 72282
Campello sul Clitunno PG 18 2442 74724
Fiordimonte MC 18 202 74926
Valtopina PG 18 1398 76324
Ussita MC 19 444 76768
Muccia MC 19 915 77683
Pievebovigliana MC 19 866 78549
Vallo di Nera PG 20 364 78913

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km E of Foligno (57155 inhabitants)
46 Km E of Perugia (166134 inhabitants)
48 Km NE of Terni (111501 inhabitants)
72 Km W of Teramo (54892 inhabitants)
77 Km NW of L'Aquila (69753 inhabitants)
88 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
Reviewed
Rev100 		ML 1.0 2021-06-16
18:04:37		 42.9442 12.9113 13 2021-06-16
18:11:41		 Sala Sismica INGV-Roma 91411671
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-06-16 18:04:37 ± 0.1
Latitude 42.9442 ± 0.0045
Longitude 12.9113 ± 0.0061
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 91411671

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 465
Semi-minor axis of confidence ellipse (meter) 444
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 211
Circular confidence region, given by single value of horizontal uncertainty (meter) 470.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 115
Number of associated phases, regardless of their use for origin computation 45
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.28329
Number of stations at which the event was observed 33
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.6
Num. used stations 10
Type of magnitude ML
Reference to an origin 91411671
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-06-16 18:11:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAR1.HHZ. 2021-06-16T18:06:21.27 3.0 undecidable manual Sn -3.57 0
IV.ZEN8.EHZ. 2021-06-16T18:06:16.72 3.0 undecidable manual Sg 17.6 0
IV.ORZI.HHZ. 2021-06-16T18:06:15.04 3.0 undecidable manual Sg 13.53 0
GU.BURY.HHZ. 2021-06-16T18:06:12.00 3.0 undecidable manual Sn -2.5 0
IV.CRAC.EHZ. 2021-06-16T18:06:01.25 3.0 undecidable manual Sn -6.33 0
IV.MRLC.HHZ. 2021-06-16T18:05:57.89 3.0 undecidable manual Sg 9.43 0
GU.RNCA.HHZ. 2021-06-16T18:05:54.52 3.0 undecidable manual Sn -4 0
IV.CMPR.HHZ. 2021-06-16T18:05:52.08 3.0 undecidable manual Sn -1.72 0
OT.OT11.EHZ. 2021-06-16T18:05:46.97 3.0 undecidable manual Sg 12.13 0
IV.SBPO.HNZ. 2021-06-16T18:05:42.29 3.0 undecidable manual Sn -2.74 0
OE.WTTA.HHZ. 2021-06-16T18:05:41.50 3.0 positive manual Pn 1.69 0
IV.CRTO.HHZ. 2021-06-16T18:05:33.98 3.0 undecidable manual Sn -0.22 0
GU.RORO.HHZ. 2021-06-16T18:05:31.82 3.0 undecidable manual Pn 5.56 0
IV.VITU.HHZ. 2021-06-16T18:05:28.65 3.0 undecidable manual Sn -1.09 0
IV.FIR.HHZ. 2021-06-16T18:05:22.54 3.0 undecidable manual Sg 6.44 0
IV.TST01.HHZ. 2021-06-16T18:05:20.14 3.0 undecidable manual Sg 2.95 0
IV.FREG.HNZ. 2021-06-16T18:05:18.02 3.0 undecidable manual Pn -3.93 0
IV.VITU.HHZ. 2021-06-16T18:05:06.32 3.0 positive manual Pg 1.81 0
IV.ARVD.HHZ. 2021-06-16T18:04:56.12 3.0 undecidable manual Sn -3.55 0
IV.FAGN.HHZ. 2021-06-16T18:04:54.25 3.0 undecidable manual Sn -3.73 0
IV.VCEL.EHZ. 2021-06-16T18:04:53.04 3.0 undecidable manual Pg 4.74 0
IV.LPEL.HHZ. 2021-06-16T18:04:52.80 3.0 negative manual Pn -0.66 0
IV.PF6.EHE. 2021-06-16T18:04:48.01 0.1 undecidable manual S 47 31.4463 96 0.02 96
IV.LAV9.HHZ. 2021-06-16T18:04:48.22 3.0 positive manual P -1.39 0
IV.GAVE.EHZ. 2021-06-16T18:04:47.09 0.1 undecidable manual S 183 27.9498 97 0.02 97
IV.CSP1.EHZ. 2021-06-16T18:04:47.62 0.1 undecidable manual S 55 28.9488 96 0.3 91
IV.ASSB.HHZ. 2021-06-16T18:04:45.95 0.1 undecidable manual S 298 23.2545 100 0.13 95
IV.MML1.HNN. 2021-06-16T18:04:45.13 0.1 undecidable manual S 15 19.4694 104 0.31 93
IV.ATCC.EHZ. 2021-06-16T18:04:44.14 3.0 positive manual P 1.06 0
IV.FDMO.HHZ. 2021-06-16T18:04:44.23 0.1 undecidable manual S 54 17.5713 107 -0.12 96
IV.FAGN.HHZ. 2021-06-16T18:04:44.93 3.0 positive manual P -1.74 0
IV.NRCA.HHZ. 2021-06-16T18:04:44.98 0.1 undecidable manual S 127 20.5683 103 -0.14 96
IV.CSP1.EHZ. 2021-06-16T18:04:43.11 1.0 positive manual P 55 28.9488 96 0.1 24
IV.PF6.EHE. 2021-06-16T18:04:43.44 0.1 undecidable manual P 47 31.4463 96 0.04 96
IV.FEMA.HNE. 2021-06-16T18:04:42.96 0.1 undecidable manual S 80 11.3775 125 0.09 98
IT.MTCL.HGE. 2021-06-16T18:04:42.13 0.1 undecidable manual S 52 9.0798 135 -0.26 96
IV.ASSB.HHZ. 2021-06-16T18:04:42.22 0.3 undecidable manual P 298 23.2545 100 0.08 72
IV.GAVE.EHZ. 2021-06-16T18:04:42.86 0.1 undecidable manual P 183 27.9498 97 -0.01 97
IV.NRCA.HHZ. 2021-06-16T18:04:41.67 0.1 negative manual P 127 20.5683 103 -0.07 97
IV.CESI.HHN. 2021-06-16T18:04:41.92 0.1 undecidable manual S 355 6.7932 145 -0.07 100
IV.FDMO.HHZ. 2021-06-16T18:04:40.99 1.0 undecidable manual P 54 17.5713 107 -0.31 23
IV.MML1.HNN. 2021-06-16T18:04:40.59 0.1 undecidable manual P 15 19.4694 104 -0.98 72
IV.FEMA.HNE. 2021-06-16T18:04:40.68 0.1 undecidable manual P 80 11.3775 125 0.24 95
IV.CESI.HHN. 2021-06-16T18:04:40.12 0.1 undecidable manual P 355 6.7932 145 0.19 97
IT.MTCL.HGE. 2021-06-16T18:04:40.22 0.1 undecidable manual P 52 9.0798 135 0.06 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.9 0.000053849999999999994 0.14 AML other m 2021-06-16T18:04:44.34
IV.FDMO.HHN. ML:1.0 0.0000711 0.16 AML other m 2021-06-16T18:04:44.34
IV.NRCA.HHN. ML:1.0 0.0000592 0.1 AML other m 2021-06-16T18:04:45.28
IV.NRCA.HHE. ML:0.8 0.00003850000000000001 0.94 AML other m 2021-06-16T18:04:45.46
IV.ASSB.HHE. ML:0.4 0.00001655 1.62 AML other m 2021-06-16T18:04:46.05
IV.ASSB.HHN. ML:0.5 0.0000201 0.18 AML other m 2021-06-16T18:04:46.14
IV.LPEL.HHE. ML:2.2 0.00008804999999999999 0.06 AML other m 2021-06-16T18:05:01.16
IV.LPEL.HHN. ML:2.2 0.00008010000000000001 0.06 AML other m 2021-06-16T18:05:01.14
IV.TST01.HHE. ML:2.1 0.0000429 0.66 AML other m 2021-06-16T18:05:22.83
IV.TST01.HHN. ML:2.5 0.00010435 0.26 AML other m 2021-06-16T18:05:23.72
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