Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 26-10-2020 and time 02:11:44 (UTC) in region 3 km E Cerreto di Spoleto (PG)

A magnitude ML 1.6 earthquake occured in region: 3 km E Cerreto di Spoleto (PG), on

  • 26-10-2020 02:11:44 (UTC)
  • 26-10-2020 03:11:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8180, 12.9500 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
Cerreto di Spoleto PG 3 1075 1075
Sellano PG 8 1079 2154
Vallo di Nera PG 9 364 2518
Preci PG 10 724 3242
Poggiodomo PG 12 117 3359
Norcia PG 12 4957 8316
Cascia PG 12 3217 11533
Sant'Anatolia di Narco PG 13 564 12097
Campello sul Clitunno PG 14 2442 14539
Scheggino PG 15 461 15000
Visso MC 17 1107 16107
Trevi PG 18 8469 24576
Monteleone di Spoleto PG 18 599 25175
Castelsantangelo sul Nera MC 19 281 25456
Spoleto PG 20 38218 63674

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km SE of Foligno (57155 inhabitants)
38 Km NE of Terni (111501 inhabitants)
56 Km SE of Perugia (166134 inhabitants)
64 Km NW of L'Aquila (69753 inhabitants)
64 Km W of Teramo (54892 inhabitants)
82 Km NE of Viterbo (67173 inhabitants)
93 Km N of Guidonia Montecelio (88673 inhabitants)
96 Km N of Tivoli (56533 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 2020-10-26
02:11:44		 42.818 12.9497 9 2021-02-26
14:56:18		 Bollettino Sismico Italiano INGV 86934571
Reviewed
Rev100 		ML 1.7 2020-10-26
02:11:44		 42.8167 12.947 9 2020-10-26
02:17:19		 Sala Sismica INGV-Roma 84138091
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-26 02:11:44 ± 0.04
Latitude 42.8180 ± 0.0018
Longitude 12.9497 ± 0.0037
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 86934571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 240
Semi-minor axis of confidence ellipse (meter) 216
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 61
Circular confidence region, given by single value of horizontal uncertainty (meter) 240.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 46
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 39
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) 0.83637
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 31
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 24
Type of magnitude ML
Reference to an origin 84138091
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-26 02:17:19

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 50
Type of magnitude ML
Reference to an origin 86934571
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-08 11:54:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BARO.EHZ. 2020-10-26T02:12:13.32 3.0 undecidable manual S -1.86 0
IV.NARO.HHZ. 2020-10-26T02:12:00.21 0.6 undecidable manual P 341 92.8404 50 -0.05 44
IV.ARVD.HHZ. 2020-10-26T02:11:57.48 0.3 undecidable manual P 360 75.4689 50 -0.09 67
IV.SRES.HHZ. 2020-10-26T02:11:57.70 1.0 undecidable manual P 209 73.7706 50 0.38 21
IV.MNTT.EHZ. 2020-10-26T02:11:55.85 0.6 undecidable manual P 62 58.9965 50 0.81 38
IV.MURB.HHZ. 2020-10-26T02:11:55.29 0.3 undecidable manual P 325 60.1953 50 0.07 70
IV.TERO.HHZ. 2020-10-26T02:11:55.17 0.3 undecidable manual P 112 57.5979 50 0.36 66
IV.EL6.EHE. 2020-10-26T02:11:54.76 0.3 undecidable manual P 12 58.0974 50 -0.13 69
IV.FOSV.EHZ. 2020-10-26T02:11:54.41 0.3 undecidable manual P 344 55.1004 50 -0.02 71
IT.FOPC.HGZ. 2020-10-26T02:11:54.11 0.3 undecidable manual S 310 26.1516 109 0.21 72
IV.LNSS.HHZ. 2020-10-26T02:11:53.29 0.1 undecidable manual S 163 24.9528 110 -0.22 96
IV.CAMP.HHE. 2020-10-26T02:11:53.01 1.0 undecidable manual P 130 48.8178 50 -0.46 22
IV.FDMO.HHZ. 2020-10-26T02:11:53.76 0.3 undecidable manual S 25 26.6511 109 -0.31 70
IV.SNTG.HHZ. 2020-10-26T02:11:53.15 0.3 undecidable manual P 359 48.5181 50 -0.26 68
IV.SAP2.EHE. 2020-10-26T02:11:53.37 1.0 undecidable manual P 50 47.8188 50 0.06 24
IV.MF5.EHZ. 2020-10-26T02:11:53.21 0.3 undecidable manual P 65 45.5211 50 0.25 69
IV.GUMA.HHZ. 2020-10-26T02:11:52.46 0.3 undecidable manual P 49 41.4252 50 0.13 71
IV.CESI.HHZ. 2020-10-26T02:11:52.19 0.3 undecidable manual S 350 21.0678 114 -0.06 75
IV.RM33.EHZ. 2020-10-26T02:11:52.08 0.3 undecidable manual P 148 40.5261 50 -0.11 72
IV.MC2.EHZ. 2020-10-26T02:11:52.73 0.3 undecidable manual S 62 22.0668 113 0.16 73
IV.SMA1.EHZ. 2020-10-26T02:11:51.88 0.3 undecidable manual P 123 37.7289 50 0.13 72
IV.FEMA.HNZ. 2020-10-26T02:11:51.22 0.3 undecidable manual S 27 17.9709 117 -0.05 75
IV.ASSB.HHZ. 2020-10-26T02:11:51.04 0.3 undecidable manual P 317 34.3434 50 -0.19 71
IT.MTCL.HGZ. 2020-10-26T02:11:51.80 0.3 undecidable manual S 12 19.9689 115 -0.09 75
IV.CESX.HHZ. 2020-10-26T02:11:51.60 0.3 undecidable manual P 232 37.629 50 -0.14 72
IV.T1299.HNN. 2020-10-26T02:11:51.19 0.3 undecidable manual P 127 33.9438 50 0.02 74
IV.CSP1.EHZ. 2020-10-26T02:11:51.43 0.3 undecidable manual P 34 36.741 50 -0.18 71
IV.PF6.EHN. 2020-10-26T02:11:51.99 0.3 undecidable manual P 29 40.626 50 -0.22 70
IV.ARRO.EHZ. 2020-10-26T02:11:50.58 0.3 undecidable manual P 210 30.4473 50 -0.05 74
IV.MOMA.HHZ. 2020-10-26T02:11:50.88 0.3 undecidable manual P 267 30.9468 50 0.17 72
IV.NRCA.HHZ. 2020-10-26T02:11:50.01 0.6 undecidable manual S 83 13.4754 124 0.07 51
IV.MMO1.EHZ. 2020-10-26T02:11:50.66 0.3 undecidable manual P 73 31.9458 50 -0.21 71
IV.CESI.HHZ. 2020-10-26T02:11:49.08 0.1 positive manual P 350 21.0678 114 0.2 97
IT.FOPC.HGZ. 2020-10-26T02:11:49.92 0.3 undecidable manual P 310 26.1516 109 0.09 74
IV.MC2.EHZ. 2020-10-26T02:11:49.23 0.3 undecidable manual P 62 22.0668 113 0.17 73
IV.LNSS.HHZ. 2020-10-26T02:11:49.63 0.1 undecidable manual P 163 24.9528 110 0.02 100
IV.FDMO.HHZ. 2020-10-26T02:11:49.84 0.3 undecidable manual P 25 26.6511 109 -0.09 74
IV.FEMA.HNZ. 2020-10-26T02:11:48.46 0.3 undecidable manual P 27 17.9709 117 0.14 74
IT.MTCL.HGZ. 2020-10-26T02:11:48.73 0.3 undecidable manual P 12 19.9689 115 0.05 75
IV.NRCA.HHZ. 2020-10-26T02:11:47.38 0.3 undecidable manual P 83 13.4754 124 -0.17 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNN. ML:1.6 0.00046539374999999997 0.0896 AML other m 2020-10-26T02:11:51.64
IV.NRCA.HHE. ML:1.9 0.0008776801000000001 0.1792 AML other m 2020-10-26T02:11:51.15
IV.NRCA.HNE. ML:1.9 0.0008265 0.18 AML other m 2020-10-26T02:11:51.16
IV.NRCA.HHN. ML:1.7 0.000499 0.1 AML other m 2020-10-26T02:11:51.68
IV.CESI.HNN. ML:1.8 0.00040649999999999996 0.5 AML other m 2020-10-26T02:11:52.61
IV.CESI.HHE. ML:1.6 0.0002732584 0.28 AML other m 2020-10-26T02:11:53.13
IV.CESI.HNE. ML:1.6 0.00025650784999999997 0.2096 AML other m 2020-10-26T02:11:54.54
IV.CESI.HHN. ML:1.8 0.00042944085 0.2608 AML other m 2020-10-26T02:11:52.61
IV.LNSS.HHN. ML:2.1 0.00074492495 0.2384 AML other m 2020-10-26T02:11:53.92
IV.LNSS.HNN. ML:2.1 0.000761 0.14 AML other m 2020-10-26T02:11:53.52
IV.LNSS.HHE. ML:2.3 0.0011899999999999999 0.12 AML other m 2020-10-26T02:11:53.57
IV.LNSS.HNE. ML:2.2 0.001065 0.12 AML other m 2020-10-26T02:11:53.58
IV.FDMO.HHE. ML:2.0 0.0006435 0.28 AML other m 2020-10-26T02:11:54.26
IV.FDMO.HHN. ML:2.0 0.0006355 0.62 AML other m 2020-10-26T02:11:54.02
IV.ARRO.EHN. ML:1.5 0.00016610289999999998 0.16 AML other m 2020-10-26T02:11:55.30
IV.ARRO.EHE. ML:1.6 0.0001865 0.18 AML other m 2020-10-26T02:11:56.04
IV.ASSB.HHE. ML:1.7 0.00020867635000000002 0.08 AML other m 2020-10-26T02:11:56.34
IV.ASSB.HHN. ML:1.7 0.0001880095 0.08 AML other m 2020-10-26T02:11:56.33
IV.MOMA.HHE. ML:1.6 0.0001822913 0.16 AML other m 2020-10-26T02:11:56.24
IV.CSP1.EHE. ML:2.0 0.00038500000000000003 0.26 AML other m 2020-10-26T02:11:57.49
IV.MOMA.HHN. ML:1.4 0.00012221214999999998 0.2 AML other m 2020-10-26T02:11:57.18
IV.CESX.HHN. ML:1.7 0.00019800000000000002 0.36 AML other m 2020-10-26T02:11:57.44
IV.SMA1.EHN. ML:1.4 0.000089966005 0.2608 AML other m 2020-10-26T02:11:58.26
IV.CESX.HHE. ML:1.8 0.00022287625 0.3408 AML other m 2020-10-26T02:11:58.42
IV.RM33.EHE. ML:1.4 0.00008715 0.18 AML other m 2020-10-26T02:11:58.47
IV.CSP1.EHN. ML:1.9 0.00027436405 0.2608 AML other m 2020-10-26T02:11:58.84
IV.SMA1.EHE. ML:1.3 0.00007706836499999999 0.2 AML other m 2020-10-26T02:11:59.51
IV.RM33.EHN. ML:1.3 0.00006697136 0.2 AML other m 2020-10-26T02:12:00.29
IV.GUMA.HHN. ML:1.8 0.0001969914 0.3792 AML other m 2020-10-26T02:12:00.24
IV.SNTG.HHE. ML:1.3 0.00005005 0.12 AML other m 2020-10-26T02:12:01.37
IV.SNTG.HHN. ML:1.2 0.00004558917 0.12 AML other m 2020-10-26T02:12:01.31
IV.GUMA.HHE. ML:1.8 0.00022124815 0.2592 AML other m 2020-10-26T02:12:01.56
IV.TERO.HHE. ML:1.0 0.00002215 0.9 AML other m 2020-10-26T02:12:03.47
IV.FOSV.EHE. ML:1.1 0.00002870925 0.1392 AML other m 2020-10-26T02:12:03.55
IV.FOSV.EHN. ML:1.2 0.000035799999999999996 0.2 AML other m 2020-10-26T02:12:05.21
IV.MURB.HHE. ML:1.9 0.0001735 0.24 AML other m 2020-10-26T02:12:05.47
IV.MURB.HHN. ML:1.8 0.000132329415 0.16 AML other m 2020-10-26T02:12:05.47
IV.ARVD.HHE. ML:1.3 0.0000285 0.16 AML other m 2020-10-26T02:12:08.69
IV.TERO.HHN. ML:1.0 0.000022289005 0.2 AML other m 2020-10-26T02:12:05.38
IV.ARVD.HHN. ML:1.0 0.0000171508705 0.1808 AML other m 2020-10-26T02:12:09.96
IV.MOMA.HNE. ML:1.6 0.000177451295 0.1904 AML other m 2020-10-26T02:11:56.24
IV.MOMA.HNN. ML:1.5 0.00013542290000000001 0.1904 AML other m 2020-10-26T02:11:57.39
IV.RM33.HNE. ML:1.6 0.00012170942499999999 0.28 AML other m 2020-10-26T02:11:58.59
IV.GUMA.HNE. ML:1.8 0.00022797239999999998 0.2592 AML other m 2020-10-26T02:12:01.56
IV.MF5.EHN. ML:1.3 0.00005923923559999999 0.4 AML other m 2020-10-26T02:12:00.23
IV.MF5.EHE. ML:1.4 0.00007966889 0.36 AML other m 2020-10-26T02:12:00.69
IV.MURB.HNE. ML:1.9 0.00017052423999999999 0.3296 AML other m 2020-10-26T02:12:05.48
IV.MURB.HNN. ML:1.8 0.00012809761499999999 0.1904 AML other m 2020-10-26T02:12:05.47
IV.MNTT.EHE. ML:1.7 0.00010570445499999999 0.2992 AML other m 2020-10-26T02:12:05.57
IV.MNTT.EHN. ML:1.8 0.0001501076 0.2608 AML other m 2020-10-26T02:12:06.54
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