Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 30-11-2020 and time 21:30:22 (Italy) in region 6 km NW Sellano (PG)

A magnitude ML 1.1 earthquake occured in region: 6 km NW Sellano (PG), on

  • 30-11-2020 20:30:22 (UTC)
  • 30-11-2020 21:30:22 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9280, 12.8800 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 6 1079 1079
Trevi PG 12 8469 9548
Cerreto di Spoleto PG 12 1075 10623
Monte Cavallo MC 12 145 10768
Preci PG 14 724 11492
Campello sul Clitunno PG 15 2442 13934
Foligno PG 15 57155 71089
Visso MC 17 1107 72196
Serravalle di Chienti MC 17 1070 73266
Vallo di Nera PG 18 364 73630
Valtopina PG 18 1398 75028
Spello PG 19 8645 83673
Montefalco PG 19 5679 89352
Pieve Torina MC 19 1458 90810

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km E of Foligno (57155 inhabitants)
45 Km E of Perugia (166134 inhabitants)
45 Km NE of Terni (111501 inhabitants)
74 Km W of Teramo (54892 inhabitants)
77 Km NW of L'Aquila (69753 inhabitants)
85 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 1.1 2020-11-30
20:30:22		 42.9275 12.8805 12 2021-02-26
14:56:10		 Bollettino Sismico Italiano INGV 85424251
Reviewed
Rev100 		ML 1.2 2020-11-30
20:30:22		 42.9193 12.88 11 2020-11-30
20:37:02		 Sala Sismica INGV-Roma 85113111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-30 20:30:22 ± 0.04
Latitude 42.9275 ± 0.0027
Longitude 12.8805 ± 0.0025
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 85424251

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 227
Semi-minor axis of confidence ellipse (meter) 123
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 183
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) 63
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 31
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) 0.38491
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.6
Num. used stations 14
Type of magnitude ML
Reference to an origin 85113111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-30 20:37:02

ML:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 10
Type of magnitude ML
Reference to an origin 85424251
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-12-14 15:18:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HPAC.HHZ. 2020-11-30T20:31:49.07 3.0 negative manual Pn -1.71 0
IV.PTCC.HHZ. 2020-11-30T20:31:46.82 3.0 undecidable manual Sn 1.75 0
IV.PAOL.HHZ. 2020-11-30T20:31:42.20 3.0 undecidable manual Sg 11.44 0
IV.LADO.EHZ. 2020-11-30T20:31:38.90 3.0 undecidable manual Pn 8.16 0
IV.FRE8.HNZ. 2020-11-30T20:31:30.05 3.0 undecidable manual Sn -2.44 0
CR.ZAG.BHZ. 2020-11-30T20:31:27.32 3.0 undecidable manual Pg 16.51 0
IV.MNTV.HNZ. 2020-11-30T20:31:17.88 3.0 undecidable manual Sg 2.1 0
MN.TRI.HHZ. 2020-11-30T20:31:01.83 3.0 positive manual Pg 5.4 0
IX.MNT3.HHZ.02 2020-11-30T20:30:58.15 3.0 undecidable manual Pn -2.81 0
IV.LNSS.HHZ. 2020-11-30T20:30:35.17 0.3 undecidable manual S 160 38.3283 92 -0.25 71
IV.ATCC.EHZ. 2020-11-30T20:30:34.29 0.3 undecidable manual S 326 34.6431 92 -0.15 71
IV.MMO1.EHZ. 2020-11-30T20:30:34.86 0.3 undecidable manual S 95 36.4413 92 -0.06 74
IV.CSNT.HHZ. 2020-11-30T20:30:33.28 3.0 undecidable manual S -1.16 0
IV.CSP1.EHZ. 2020-11-30T20:30:33.84 0.3 undecidable manual S 55 32.0457 93 0.09 74
IT.GNU.HGZ. 2020-11-30T20:30:33.10 0.6 undecidable manual S 242 28.749 93 0.23 48
IV.MC2.EHZ. 2020-11-30T20:30:32.21 0.1 undecidable manual S 94 25.1526 94 0.3 95
IV.MOMA.HHZ. 2020-11-30T20:30:32.69 0.3 undecidable manual S 242 28.749 93 -0.19 72
IV.CESX.HHE. 2020-11-30T20:30:31.02 0.3 undecidable manual P 214 42.7239 92 0.28 70
IV.MML1.EHZ. 2020-11-30T20:30:31.00 0.3 undecidable manual S 20 21.9669 96 -0.06 75
IV.ASSB.HHZ. 2020-11-30T20:30:30.94 0.3 undecidable manual S 305 22.0668 96 -0.17 73
IV.ARRO.EHZ. 2020-11-30T20:30:30.35 0.1 undecidable manual P 194 39.7269 92 0.06 97
IV.NRCA.HHZ. 2020-11-30T20:30:30.78 0.3 undecidable manual S 119 21.6672 96 -0.22 73
IV.FDMO.HHZ. 2020-11-30T20:30:30.55 0.3 undecidable manual S 54 20.6682 97 -0.19 73
IV.LNSS.HHZ. 2020-11-30T20:30:29.83 0.1 undecidable manual P 160 38.3283 92 -0.24 94
IV.CSP1.EHZ. 2020-11-30T20:30:29.19 0.3 undecidable manual P 55 32.0457 93 0.09 74
IV.ATCC.EHZ. 2020-11-30T20:30:29.57 0.3 undecidable manual P 326 34.6431 92 0.07 74
IV.FEMA.HNZ. 2020-11-30T20:30:29.10 0.3 undecidable manual S 74 14.2746 109 0.04 76
IV.MMO1.EHZ. 2020-11-30T20:30:29.68 0.1 undecidable manual P 95 36.4413 92 -0.09 97
IV.MOMA.HHZ. 2020-11-30T20:30:28.83 0.3 undecidable manual P 242 28.749 93 0.24 72
IT.GNU.HGZ. 2020-11-30T20:30:28.80 0.1 undecidable manual P 242 28.749 93 0.21 97
IT.MTCL.HGZ. 2020-11-30T20:30:28.40 0.3 undecidable manual S 53 12.1767 117 -0.14 75
IV.NRCA.HHZ. 2020-11-30T20:30:27.41 0.1 undecidable manual P 119 21.6672 96 -0.1 100
IV.SEF1.HNZ. 2020-11-30T20:30:27.85 0.1 undecidable manual P 13 24.9528 94 -0.16 97
IV.FDMO.HHZ. 2020-11-30T20:30:27.43 0.3 undecidable manual P 54 20.6682 97 0.07 76
IV.CESI.HHZ. 2020-11-30T20:30:27.91 0.3 undecidable manual S 13 8.7801 132 0.1 76
IV.ASSB.HHZ. 2020-11-30T20:30:27.46 0.3 undecidable manual P 305 22.0668 96 -0.11 74
IV.MML1.EHZ. 2020-11-30T20:30:27.62 0.3 undecidable manual P 20 21.9669 96 0.07 76
IV.MC2.EHZ. 2020-11-30T20:30:27.90 0.3 undecidable manual P 94 25.1526 94 -0.14 74
IT.MTCL.HGZ. 2020-11-30T20:30:26.20 0.3 undecidable manual P 53 12.1767 117 0.11 76
IV.FEMA.HNZ. 2020-11-30T20:30:26.59 0.3 undecidable manual P 74 14.2746 109 0.2 74
IV.CESI.HHZ. 2020-11-30T20:30:25.87 0.1 undecidable manual P 13 8.7801 132 0.2 100
IV.CSNT.HHZ. 2020-11-30T20:30:22.56 3.0 negative manual P -1.72 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:1.2 0.0001795 0.3 AML other m 2020-11-30T20:30:28.11
IV.CESI.HHE. ML:1.0 0.000122 1.16 AML other m 2020-11-30T20:30:28.01
IV.FDMO.HHN. ML:1.3 0.0001315 1.24 AML other m 2020-11-30T20:30:30.90
IV.NRCA.HHN. ML:1.2 0.000101 1.76 AML other m 2020-11-30T20:30:31.09
IV.FDMO.HHE. ML:1.2 0.0001185 0.16 AML other m 2020-11-30T20:30:31.19
IV.ASSB.HHE. ML:1.1 0.0000858 1.38 AML other m 2020-11-30T20:30:31.28
IV.ASSB.HHN. ML:1.0 0.00006275 0.52 AML other m 2020-11-30T20:30:31.30
IV.NRCA.HHE. ML:1.1 0.0000911 1.5 AML other m 2020-11-30T20:30:32.09
IV.MOMA.HHN. ML:0.9 0.0000424 0.72 AML other m 2020-11-30T20:30:33.87
IV.MOMA.HHE. ML:1.0 0.0000572 1.14 AML other m 2020-11-30T20:30:33.89
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