Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 15-09-2020 and time 23:25:50 (Italy) in region 9 km NW Sellano (PG)

A magnitude ML 1.6 earthquake occured in region: 9 km NW Sellano (PG), on

  • 15-09-2020 21:25:50 (UTC)
  • 15-09-2020 23:25:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9620, 12.8740 at 9 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 9 1079 1079
Monte Cavallo MC 11 145 1224
Foligno PG 14 57155 58379
Serravalle di Chienti MC 14 1070 59449
Trevi PG 14 8469 67918
Valtopina PG 15 1398 69316
Cerreto di Spoleto PG 16 1075 70391
Preci PG 16 724 71115
Spello PG 17 8645 79760
Pieve Torina MC 17 1458 81218
Campello sul Clitunno PG 18 2442 83660
Visso MC 18 1107 84767
Nocera Umbra PG 18 5839 90606
Muccia MC 19 915 91521
Fiordimonte MC 20 202 91723
Montefalco PG 20 5679 97402

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km E of Foligno (57155 inhabitants)
43 Km E of Perugia (166134 inhabitants)
48 Km NE of Terni (111501 inhabitants)
76 Km W of Teramo (54892 inhabitants)
80 Km NW of L'Aquila (69753 inhabitants)
87 Km NE of Viterbo (67173 inhabitants)
90 Km SW of Ancona (100861 inhabitants)
98 Km SE of Arezzo (99543 inhabitants)
99 Km S of Fano (60888 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 1.6 2020-09-15
21:25:50		 42.9622 12.8742 9 2021-02-26
14:55:59		 Bollettino Sismico Italiano INGV 83770691
Reviewed
Rev100 		ML 1.6 2020-09-15
21:25:50		 42.961 12.8708 8 2020-09-15
21:34:23		 Sala Sismica INGV-Roma 82936381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-15 21:25:50 ± 0.03
Latitude 42.9622 ± 0.0018
Longitude 12.8742 ± 0.0025
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 83770691

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 170
Semi-minor axis of confidence ellipse (meter) 95
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 166
Circular confidence region, given by single value of horizontal uncertainty (meter) 170.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 30
Number of associated phases, regardless of their use for origin computation 61
Number of defining phases 58
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.82738
Number of stations at which the event was observed 37
Number of stations from which data was used for origin computation 34
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 28
Type of magnitude ML
Reference to an origin 83770691
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-10-14 08:33:04

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 34
Type of magnitude ML
Reference to an origin 82936381
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-15 21:34:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PTRJ.HNZ. 2020-09-15T21:26:51.14 3.0 undecidable manual Sn -0.06 0
IV.SBPO.HNZ. 2020-09-15T21:26:40.36 3.0 negative manual Pg 8.8 0
IV.ROSPO.HHZ. 2020-09-15T21:26:21.53 3.0 undecidable manual Pn 1.31 0
IV.RM33.EHZ. 2020-09-15T21:26:09.35 0.6 undecidable manual S 151 57.3981 50 0.22 44
IV.ARVD.HHZ. 2020-09-15T21:26:09.94 0.6 undecidable manual S 5 59.6958 50 0.19 44
IV.ATFO.HHZ. 2020-09-15T21:26:07.80 0.6 undecidable manual S 331 51.1155 50 0.35 43
IV.PARC.HHZ. 2020-09-15T21:26:06.79 0.6 undecidable manual P 326 91.8414 50 0.07 42
IV.SRES.HHZ. 2020-09-15T21:26:06.10 1.0 undecidable manual P 200 85.7475 50 0.32 20
IV.CESX.HHZ. 2020-09-15T21:26:05.89 0.3 undecidable manual S 211 45.7209 50 -0.11 69
IV.LNSS.HHZ. 2020-09-15T21:26:05.01 0.3 undecidable manual S 161 42.1245 50 -0.03 70
IV.MURB.HHZ. 2020-09-15T21:26:05.77 0.3 undecidable manual S 320 43.7229 50 0.29 67
IV.EL6.EHZ. 2020-09-15T21:26:05.89 0.3 undecidable manual S 24 44.7219 50 0.15 68
IV.GUMA.HHZ. 2020-09-15T21:26:04.64 0.3 undecidable manual S 73 39.0276 50 0.42 65
IV.FIAM.HHZ. 2020-09-15T21:26:04.76 0.3 undecidable manual P 165 79.5648 50 -0.06 65
IV.NARO.HHZ. 2020-09-15T21:26:03.99 0.3 undecidable manual P 342 75.7686 50 -0.25 63
IV.MMO1.EHZ. 2020-09-15T21:26:03.68 0.3 undecidable manual S 101 37.4292 50 -0.12 70
IV.PF6.EHN. 2020-09-15T21:26:02.18 0.3 undecidable manual S 53 32.4453 50 -0.29 68
IV.ATCC.EHZ. 2020-09-15T21:26:02.00 0.3 undecidable manual S 323 31.1466 50 -0.13 70
IV.GAVE.EHZ. 2020-09-15T21:26:01.76 0.3 undecidable manual S 177 29.9478 107 0.02 72
IV.MNTT.EHZ. 2020-09-15T21:26:01.98 0.6 undecidable manual P 79 59.5959 50 0.23 44
IV.MGAB.HHZ. 2020-09-15T21:26:01.95 0.6 undecidable manual P 265 62.0934 50 -0.19 44
IV.CSP1.EHZ. 2020-09-15T21:26:01.85 0.3 undecidable manual S 62 30.4473 106 -0.03 72
IV.ARVD.HHZ. 2020-09-15T21:26:01.61 0.6 undecidable manual P 5 59.6958 50 -0.16 44
IV.MOMA.HHZ. 2020-09-15T21:26:01.99 0.3 undecidable manual S 235 30.3474 106 0.15 70
IV.RM33.EHZ. 2020-09-15T21:26:01.16 0.3 undecidable manual P 151 57.3981 50 -0.26 65
IV.SSFR.HHZ. 2020-09-15T21:26:00.57 0.3 undecidable manual P 352 53.1024 50 -0.18 67
IV.MF5.EHZ. 2020-09-15T21:26:00.07 0.6 undecidable manual P 86 47.619 50 0.17 45
IV.MC2.EHZ. 2020-09-15T21:26:00.14 0.3 undecidable manual S 102 26.1516 109 -0.33 68
IV.ATFO.HHZ. 2020-09-15T21:26:00.75 0.3 undecidable manual P 331 51.1155 50 0.31 65
IV.EL6.EHZ. 2020-09-15T21:25:59.40 0.3 undecidable manual P 24 44.7219 50 -0.06 70
IV.NRCA.HHZ. 2020-09-15T21:25:59.85 0.3 undecidable manual S 126 24.1536 110 0.03 73
IV.CESX.HHZ. 2020-09-15T21:25:59.40 0.3 undecidable manual P 211 45.7209 50 -0.21 67
IV.MURB.HHZ. 2020-09-15T21:25:59.24 0.3 undecidable manual P 320 43.7229 50 -0.07 70
IV.ARRO.EHZ. 2020-09-15T21:25:59.40 0.6 undecidable manual P 192 43.4232 50 0.14 46
IV.FDMO.HHZ. 2020-09-15T21:25:58.25 0.3 undecidable manual S 64 19.1697 115 0.04 73
IV.MMO1.EHZ. 2020-09-15T21:25:58.21 0.3 undecidable manual P 101 37.4292 50 -0.12 70
IV.GUMA.HHZ. 2020-09-15T21:25:58.83 0.3 undecidable manual P 73 39.0276 50 0.25 68
IV.ASSB.HHZ. 2020-09-15T21:25:58.18 0.3 undecidable manual S 297 19.6692 114 -0.18 71
IV.LNSS.HHZ. 2020-09-15T21:25:58.92 0.3 undecidable manual P 161 42.1245 50 -0.13 69
IV.SEF1.HNZ. 2020-09-15T21:25:58.73 0.3 undecidable manual S 16 21.3675 113 -0.18 71
IV.MML1.HNZ. 2020-09-15T21:25:57.92 0.3 undecidable manual S 25 18.5703 116 -0.1 72
IV.FEMA.HNZ. 2020-09-15T21:25:57.05 0.3 undecidable manual S 90 14.2746 122 0.33 69
IV.GAVE.EHZ. 2020-09-15T21:25:57.13 0.3 undecidable manual P 177 29.9478 107 -0.01 72
IT.GNU.HGE. 2020-09-15T21:25:57.13 0.6 undecidable manual P 235 30.3474 106 -0.07 48
IV.CSP1.EHZ. 2020-09-15T21:25:57.13 0.1 undecidable manual P 62 30.4473 106 -0.1 95
IV.PF6.EHN. 2020-09-15T21:25:57.38 0.3 undecidable manual P 53 32.4453 50 -0.19 69
IV.MOMA.HHZ. 2020-09-15T21:25:57.06 0.3 undecidable manual P 235 30.3474 106 -0.14 70
IV.ATCC.EHZ. 2020-09-15T21:25:57.20 0.3 undecidable manual P 323 31.1466 50 -0.17 70
IV.MC2.EHZ. 2020-09-15T21:25:56.48 0.3 undecidable manual P 102 26.1516 109 0.06 72
IT.FOPC.HGZ. 2020-09-15T21:25:56.81 0.3 undecidable manual S 274 13.875 123 0.2 72
IV.NRCA.HHZ. 2020-09-15T21:25:56.05 0.1 undecidable manual P 126 24.1536 110 0.01 97
IT.MTCL.HGZ. 2020-09-15T21:25:55.64 0.3 undecidable manual S 71 10.7781 130 -0.09 74
IV.SEF1.HNZ. 2020-09-15T21:25:55.46 0.3 undecidable manual P 16 21.3675 113 -0.05 73
IV.FDMO.HHZ. 2020-09-15T21:25:55.24 0.1 positive manual P 64 19.1697 115 0.13 96
IV.MML1.HNZ. 2020-09-15T21:25:55.11 0.1 undecidable manual P 25 18.5703 116 0.11 96
IV.ASSB.HHZ. 2020-09-15T21:25:55.20 0.3 undecidable manual P 297 19.6692 114 0.01 74
IV.FEMA.HNZ. 2020-09-15T21:25:54.55 0.3 undecidable manual P 90 14.2746 122 0.3 70
IV.CESI.HNZ. 2020-09-15T21:25:54.22 0.3 undecidable manual S 28 5.3946 149 -0.27 71
IT.FOPC.HGZ. 2020-09-15T21:25:54.49 0.3 undecidable manual P 274 13.875 123 0.3 70
IV.CESI.HNZ. 2020-09-15T21:25:53.00 0.1 undecidable manual P 28 5.3946 149 0.04 100
IT.MTCL.HGZ. 2020-09-15T21:25:53.81 0.1 undecidable manual P 71 10.7781 130 0.14 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:1.8 0.00047050000000000005 0.28 AML other m 2020-09-15T21:25:58.39
IV.FDMO.HHN. ML:1.7 0.0003655 0.86 AML other m 2020-09-15T21:25:58.44
IV.NRCA.HHN. ML:1.7 0.0003175 1.1 AML other m 2020-09-15T21:26:00.97
IV.NRCA.HHE. ML:1.8 0.00039949999999999995 0.36 AML other m 2020-09-15T21:26:01.47
IV.ATCC.EHN. ML:1.6 0.000193 0.6 AML other m 2020-09-15T21:26:02.28
IV.ATCC.EHE. ML:1.5 0.0001375 0.9 AML other m 2020-09-15T21:26:02.60
IV.MOMA.HHN. ML:1.4 0.000114 1.88 AML other m 2020-09-15T21:26:02.03
IV.GAVE.EHE. ML:2.0 0.000527 0.22 AML other m 2020-09-15T21:26:03.18
IV.GAVE.EHN. ML:2.0 0.0005005000000000001 0.14 AML other m 2020-09-15T21:26:03.58
IV.MOMA.HHE. ML:1.6 0.00017199999999999998 0.22 AML other m 2020-09-15T21:26:04.22
IV.LNSS.HHN. ML:1.9 0.000246 0.4 AML other m 2020-09-15T21:26:05.31
IV.LNSS.HHE. ML:2.0 0.00033150000000000003 0.16 AML other m 2020-09-15T21:26:05.37
IV.GUMA.HHE. ML:2.1 0.00047250000000000005 0.28 AML other m 2020-09-15T21:26:05.44
IV.CESX.HHE. ML:1.4 0.00007595 0.64 AML other m 2020-09-15T21:26:06.94
IV.MURB.HHE. ML:1.8 0.000187 0.78 AML other m 2020-09-15T21:26:07.57
IV.SSFR.HHN. ML:1.8 0.0001555 1.8 AML other m 2020-09-15T21:26:09.97
IV.MURB.HHN. ML:1.6 0.00013450000000000002 1.04 AML other m 2020-09-15T21:26:10.01
IV.CESX.HHN. ML:1.5 0.00009575 0.38 AML other m 2020-09-15T21:26:10.63
IV.ATFO.HHN. ML:1.1 0.00003505 0.58 AML other m 2020-09-15T21:26:10.19
IV.ATFO.HHE. ML:1.2 0.000040650000000000006 1.44 AML other m 2020-09-15T21:26:11.73
IV.RM33.EHN. ML:1.4 0.00005045 1.04 AML other m 2020-09-15T21:26:11.11
IV.GUMA.HHN. ML:2.0 0.00034599999999999995 1.52 AML other m 2020-09-15T21:26:11.94
IV.ARVD.HHN. ML:1.2 0.00003145 0.26 AML other m 2020-09-15T21:26:11.88
IV.ARVD.HHE. ML:1.3 0.00004315 0.98 AML other m 2020-09-15T21:26:12.16
IV.RM33.EHE. ML:1.4 0.000055 0.24 AML other m 2020-09-15T21:26:12.16
IV.SSFR.HHE. ML:1.6 0.00010735000000000001 0.58 AML other m 2020-09-15T21:26:15.50
IV.SRES.HHN. ML:1.1 0.000016300000000000003 1.02 AML other m 2020-09-15T21:26:21.25
IV.SRES.HHE. ML:1.1 0.00001545 0.82 AML other m 2020-09-15T21:26:22.41
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