Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 10-06-2021 and time 01:45:45 (Italy) in region 4 km E Sellano (PG)

A magnitude ML 0.8 earthquake occured in region: 4 km E Sellano (PG), on

  • 09-06-2021 23:45:45 (UTC)
  • 10-06-2021 01:45:45 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8860, 12.9730 at 11 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 6 724 1803
Cerreto di Spoleto PG 9 1075 2878
Visso MC 11 1107 3985
Monte Cavallo MC 12 145 4130
Norcia PG 14 4957 9087
Castelsantangelo sul Nera MC 15 281 9368
Ussita MC 15 444 9812
Vallo di Nera PG 16 364 10176
Campello sul Clitunno PG 18 2442 12618
Trevi PG 18 8469 21087
Cascia PG 19 3217 24304
Pieve Torina MC 19 1458 25762
Fiordimonte MC 19 202 25964
Poggiodomo PG 20 117 26081

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km E of Foligno (57155 inhabitants)
45 Km NE of Terni (111501 inhabitants)
54 Km E of Perugia (166134 inhabitants)
65 Km W of Teramo (54892 inhabitants)
69 Km NW of L'Aquila (69753 inhabitants)
88 Km NE of Viterbo (67173 inhabitants)
93 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 0.8 2021-06-09
23:45:45		 42.886 12.9728 11 2021-12-29
11:12:11		 Bollettino Sismico Italiano INGV 92756341
Reviewed
Rev100 		ML 0.9 2021-06-09
23:45:45		 42.8857 12.9715 10 2021-06-09
23:51:56		 Sala Sismica INGV-Roma 90999181
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-06-09 23:45:45 ± 0.04
Latitude 42.8860 ± 0.0018
Longitude 12.9728 ± 0.0025
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 92756341

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 230
Semi-minor axis of confidence ellipse (meter) 150
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 23
Circular confidence region, given by single value of horizontal uncertainty (meter) 230.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 58
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.38491
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 92756341
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-07-14 14:35:32

ML:0.9

Field Value
Value 0.9
Uncertainty 0.5
Num. used stations 10
Type of magnitude ML
Reference to an origin 90999181
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-06-09 23:51:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.CUC.HHZ. 2021-06-09T23:47:18.91 3.0 undecidable manual Sn -5.12 0
IV.CRJA.HHZ. 2021-06-09T23:47:00.91 3.0 undecidable manual Pn 7.96 0
IV.SALO.HNZ. 2021-06-09T23:46:47.36 3.0 undecidable manual Sn -0.55 0
IV.TREG.EHZ. 2021-06-09T23:46:40.88 3.0 undecidable manual Sn -0.69 0
IV.PAOL.HHZ. 2021-06-09T23:46:30.72 3.0 undecidable manual Pg 13.86 0
GU.GSCL.HHZ. 2021-06-09T23:46:23.34 3.0 undecidable manual Sn 0.62 0
IV.APRC.HHZ. 2021-06-09T23:46:22.84 3.0 positive manual Pn 5.12 0
IV.MBAL.EHZ. 2021-06-09T23:46:18.49 3.0 undecidable manual Pn 3.15 0
IV.MOMA.HNZ. 2021-06-09T23:45:57.57 0.6 undecidable manual S 255 34.0437 90 0.34 44
IV.CSP1.EHZ. 2021-06-09T23:45:56.10 0.6 undecidable manual S 39 29.5482 90 0.05 48
IV.LNSS.HNZ. 2021-06-09T23:45:56.66 0.6 undecidable manual S 170 31.8459 90 -0.01 48
IV.ASSB.HHN. 2021-06-09T23:45:56.19 0.3 undecidable manual S 304 30.8469 90 -0.2 71
IV.MMO1.EHZ. 2021-06-09T23:45:55.66 0.3 undecidable manual S 87 28.8489 90 -0.19 70
IV.MML1.HNE. 2021-06-09T23:45:55.00 0.6 undecidable manual S 360 25.2525 90 0.11 48
IV.GAVE.EHZ. 2021-06-09T23:45:54.03 0.3 undecidable manual S 197 22.4553 90 -0.11 72
IV.MC2.EHZ. 2021-06-09T23:45:53.41 0.6 undecidable manual S 81 17.7711 90 0.5 45
IV.FDMO.HHZ. 2021-06-09T23:45:53.09 0.3 undecidable manual S 29 19.0698 90 -0.16 72
IV.ATCC.EHZ. 2021-06-09T23:45:53.55 0.1 undecidable manual P 321 42.7239 90 -0.16 92
IV.MOMA.HNZ. 2021-06-09T23:45:52.56 0.3 undecidable manual P 255 34.0437 90 0.21 69
IV.ASSB.HHN. 2021-06-09T23:45:51.80 0.1 undecidable manual P 304 30.8469 90 -0.07 96
IT.MTCL.HGZ. 2021-06-09T23:45:51.08 0.3 undecidable manual S 10 12.1767 106 -0.33 70
IV.NRCA.HHZ. 2021-06-09T23:45:51.37 0.3 undecidable manual S 117 12.876 100 -0.23 71
IV.CSP1.EHZ. 2021-06-09T23:45:51.73 0.3 undecidable manual P 39 29.5482 90 0.05 72
IV.LNSS.HNZ. 2021-06-09T23:45:51.91 0.1 undecidable manual P 170 31.8459 90 -0.12 94
IV.CESI.HHZ. 2021-06-09T23:45:51.80 0.6 undecidable manual S 337 14.2746 91 -0.17 48
IV.MMO1.EHZ. 2021-06-09T23:45:51.76 0.6 undecidable manual P 87 28.8489 90 0.2 47
IV.GAVE.EHZ. 2021-06-09T23:45:50.60 0.3 undecidable manual P 197 22.4553 90 0.03 73
IV.CPGN.EHZ. 2021-06-09T23:45:50.06 3.0 undecidable manual P 1.4 0
IV.MML1.HNE. 2021-06-09T23:45:50.89 0.1 undecidable manual P 360 25.2525 90 -0.11 96
IV.FEMA.HNE. 2021-06-09T23:45:50.98 0.6 undecidable manual S 36 10.4784 117 -0.02 50
IV.MC2.EHZ. 2021-06-09T23:45:50.17 0.1 undecidable manual P 81 17.7711 90 0.32 93
IV.FDMO.HHZ. 2021-06-09T23:45:50.09 0.3 positive manual P 29 19.0698 90 0.04 74
IV.CESI.HHZ. 2021-06-09T23:45:49.38 0.3 undecidable manual P 337 14.2746 91 0.06 74
IT.MTCL.HGZ. 2021-06-09T23:45:49.06 0.3 undecidable manual P 10 12.1767 106 0.07 74
IV.NRCA.HHZ. 2021-06-09T23:45:49.12 0.1 undecidable manual P 117 12.876 100 0.02 100
IV.FEMA.HNE. 2021-06-09T23:45:48.90 0.1 undecidable manual P 36 10.4784 117 0.14 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.1 0.00012075 0.1 AML other m 2021-06-09T23:45:51.54
IV.NRCA.HHE. ML:0.9 0.00007755 0.84 AML other m 2021-06-09T23:45:51.32
IV.CESI.HHE. ML:0.8 0.00006459999999999998 0.12 AML other m 2021-06-09T23:45:52.00
IV.CESI.HHN. ML:0.9 0.000076 0.58 AML other m 2021-06-09T23:45:52.07
IV.FDMO.HHE. ML:0.7 0.000035799999999999996 0.16 AML other m 2021-06-09T23:45:53.25
IV.FDMO.HHN. ML:0.5 0.000027249999999999998 0.14 AML other m 2021-06-09T23:45:53.24
IV.GAVE.EHE. ML:0.7 0.000030372 0.22 AML other m 2021-06-09T23:45:54.22
IV.GAVE.EHN. ML:0.7 0.00002768 0.44 AML other m 2021-06-09T23:45:54.37
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