Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 26-10-2020 and time 07:29:15 (Italy) in region 3 km SE Sellano (PG)

A magnitude ML 1.0 earthquake occured in region: 3 km SE Sellano (PG), on

  • 26-10-2020 06:29:15 (UTC)
  • 26-10-2020 07:29:15 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8710, 12.9540 at 10 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 3 1079 1079
Cerreto di Spoleto PG 6 1075 2154
Preci PG 7 724 2878
Visso MC 13 1107 3985
Vallo di Nera PG 13 364 4349
Monte Cavallo MC 14 145 4494
Norcia PG 14 4957 9451
Campello sul Clitunno PG 15 2442 11893
Castelsantangelo sul Nera MC 17 281 12174
Trevi PG 17 8469 20643
Ussita MC 17 444 21087
Cascia PG 18 3217 24304
Poggiodomo PG 18 117 24421
Sant'Anatolia di Narco PG 18 564 24985

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km E of Foligno (57155 inhabitants)
43 Km NE of Terni (111501 inhabitants)
53 Km SE of Perugia (166134 inhabitants)
66 Km W of Teramo (54892 inhabitants)
68 Km NW of L'Aquila (69753 inhabitants)
86 Km NE of Viterbo (67173 inhabitants)
95 Km SW of Ancona (100861 inhabitants)
99 Km N of Guidonia Montecelio (88673 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 2020-10-26
06:29:15		 42.8713 12.9537 10 2020-10-26
07:28:49		 Sala Sismica INGV-Roma 84143931
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-26 06:29:15 ± 0.08
Latitude 42.8713 ± 0.0036
Longitude 12.9537 ± 0.0061
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 84143931

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 534
Semi-minor axis of confidence ellipse (meter) 383
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 54
Circular confidence region, given by single value of horizontal uncertainty (meter) 530.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 178
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 10
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) 0.27609
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 84143931
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-26 07:28:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
OX.VARN.HHZ. 2020-10-26T06:30:36.84 3.0 undecidable manual Sn -9.15 0
AC.VLO.HHZ. 2020-10-26T06:30:34.10 3.0 positive manual Pg 12.23 0
IV.EUCT.HNZ. 2020-10-26T06:30:30.10 3.0 undecidable manual Sn -5.8 0
IV.SBPO.HNZ. 2020-10-26T06:30:29.93 3.0 undecidable manual Sg 6.9 0
IV.NDIM.HHZ. 2020-10-26T06:30:25.69 3.0 undecidable manual Sg 6.56 0
MN.VLC.HHZ. 2020-10-26T06:30:09.30 3.0 undecidable manual Sg 5.46 0
IV.IMOL.HNZ. 2020-10-26T06:30:09.65 3.0 undecidable manual Sg 3.94 0
SI.MOSI.HHZ. 2020-10-26T06:30:08.18 3.0 undecidable manual Pn 4.1 0
IV.CAR1.HHZ. 2020-10-26T06:30:05.53 3.0 negative manual Pg 8.49 0
MN.CLTB.HHZ. 2020-10-26T06:29:58.47 3.0 negative manual Pg 1.55 0
IV.TRIV.HHZ. 2020-10-26T06:29:55.51 3.0 undecidable manual Sn -2.58 0
IV.SPS2.HHZ. 2020-10-26T06:29:53.60 3.0 negative manual Pn -4.24 0
IV.IFIL.HHZ. 2020-10-26T06:29:48.88 3.0 undecidable manual Pn -2.44 0
IV.IMI.HHZ. 2020-10-26T06:29:47.34 3.0 undecidable manual Pg 3.82 0
IV.TERO.HHZ. 2020-10-26T06:29:46.83 3.0 undecidable manual Sn 0.88 0
IV.LNSS.HHZ. 2020-10-26T06:29:25.44 0.6 undecidable manual S 167 30.6471 50 -0.42 45
IV.MMO1.EHZ. 2020-10-26T06:29:25.84 0.3 undecidable manual S 84 30.4473 50 0.01 73
IV.PE3.EHZ. 2020-10-26T06:29:24.17 3.0 positive manual P -1.12 0
IV.FDMO.HHZ. 2020-10-26T06:29:23.16 0.3 undecidable manual S 31 21.2676 116 -0.06 73
IV.MMO1.EHZ. 2020-10-26T06:29:21.46 0.6 undecidable manual P 84 30.4473 50 0.19 47
IV.CESI.HHZ. 2020-10-26T06:29:21.43 0.6 undecidable manual S 345 15.3735 124 0 50
IV.LNSS.HHZ. 2020-10-26T06:29:21.46 0.1 undecidable manual P 167 30.6471 50 0.18 94
IV.ATVO.HHZ. 2020-10-26T06:29:20.53 3.0 undecidable manual Pn -0.44 0
IV.NRCA.HHZ. 2020-10-26T06:29:20.98 0.3 undecidable manual S 108 13.6752 127 0.02 75
IV.FDMO.HHZ. 2020-10-26T06:29:19.66 0.1 undecidable manual P 31 21.2676 116 -0.1 97
IV.NRCA.HHZ. 2020-10-26T06:29:18.47 0.1 undecidable manual P 108 13.6752 127 0.02 100
IV.CESI.HHZ. 2020-10-26T06:29:18.75 0.1 undecidable manual P 345 15.3735 124 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:0.8 0.00006853871000000001 0.1408 AML other m 2020-10-26T06:29:21.72
IV.NRCA.HHN. ML:1.2 0.0001614535 0.16 AML other m 2020-10-26T06:29:21.08
IV.NRCA.HNE. ML:1.2 0.0001646284 1.3184 AML other m 2020-10-26T06:29:38.87
IV.NRCA.HNN. ML:1.3 0.00022010655 1.2992 AML other m 2020-10-26T06:29:21.08
IV.CESI.HHE. ML:0.5 0.00003116607 0.16 AML other m 2020-10-26T06:29:21.57
IV.CESI.HHN. ML:0.8 0.000057301224999999994 0.1792 AML other m 2020-10-26T06:29:21.58
IV.CESI.HNE. ML:1.2 0.0001641804 1.5104 AML other m 2020-10-26T06:29:36.84
IV.CESI.HNN. ML:1.3 0.00016804844999999998 0.768 AML other m 2020-10-26T06:29:17.79
IV.FDMO.HHE. ML:0.5 0.0000209145305 1.52 AML other m 2020-10-26T06:29:24.41
IV.FDMO.HHN. ML:0.3 0.00001654149 1.9808 AML other m 2020-10-26T06:29:48.47
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