Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 13-10-2020 and time 22:06:23 (Italy) in region Cerreto di Spoleto (PG)

A magnitude ML 1.5 earthquake occured in region: Cerreto di Spoleto (PG), on

  • 13-10-2020 20:06:23 (UTC)
  • 13-10-2020 22:06:23 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8230, 12.9180 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
Cerreto di Spoleto PG 0 1075 1075
Sellano PG 7 1079 2154
Vallo di Nera PG 7 364 2518
Campello sul Clitunno PG 11 2442 4960
Preci PG 12 724 5684
Sant'Anatolia di Narco PG 12 564 6248
Poggiodomo PG 12 117 6365
Cascia PG 14 3217 9582
Scheggino PG 14 461 10043
Norcia PG 15 4957 15000
Trevi PG 15 8469 23469
Spoleto PG 18 38218 61687
Visso MC 19 1107 62794
Monteleone di Spoleto PG 19 599 63393

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km SE of Foligno (57155 inhabitants)
37 Km NE of Terni (111501 inhabitants)
53 Km SE of Perugia (166134 inhabitants)
66 Km NW of L'Aquila (69753 inhabitants)
67 Km W of Teramo (54892 inhabitants)
80 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 1.5 2020-10-13
20:06:23		 42.8233 12.9177 11 2021-02-26
14:56:02		 Bollettino Sismico Italiano INGV 84240431
Reviewed
Rev100 		ML 1.5 2020-10-13
20:06:23		 42.8205 12.9122 10 2020-10-13
20:11:49		 Sala Sismica INGV-Roma 83762411
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-13 20:06:23 ± 0.03
Latitude 42.8233 ± 0.0009
Longitude 12.9177 ± 0.0025
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 84240431

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 148
Semi-minor axis of confidence ellipse (meter) 115
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 87
Circular confidence region, given by single value of horizontal uncertainty (meter) 150.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 47
Number of associated phases, regardless of their use for origin computation 50
Number of defining phases 49
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.52341
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 25
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 84240431
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-10-29 16:30:24

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 83762411
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-13 20:11:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LRP.EHZ. 2020-10-13T20:07:05.38 3.0 undecidable manual S 0.16 0
IV.EL6.EHZ. 2020-10-13T20:06:42.14 0.3 undecidable manual S 15 58.0974 50 0.13 69
IV.ATCC.EHZ. 2020-10-13T20:06:39.04 0.3 undecidable manual S 331 46.0206 50 0.24 68
IV.SNTG.HHZ. 2020-10-13T20:06:39.39 0.3 undecidable manual S 2 47.9187 50 0.09 70
IV.SMA1.EHZ. 2020-10-13T20:06:37.54 0.6 undecidable manual S 122 40.2264 50 0.29 46
IV.PF6.EHN. 2020-10-13T20:06:37.42 0.6 undecidable manual S 33 41.5251 50 -0.17 47
IV.RM33.EHZ. 2020-10-13T20:06:37.97 0.3 undecidable manual S 145 42.4242 50 0.12 71
IV.CSP1.EHZ. 2020-10-13T20:06:36.59 0.3 undecidable manual S 38 37.8288 50 -0.01 73
IV.T1299.HNN. 2020-10-13T20:06:36.07 0.3 undecidable manual S 125 36.3414 50 -0.15 71
IV.MMO1.EHZ. 2020-10-13T20:06:35.70 0.6 undecidable manual S 76 34.3434 50 0.03 49
IV.CESX.HHZ. 2020-10-13T20:06:35.90 0.3 undecidable manual S 229 36.0417 50 -0.22 70
IV.MML1.HNE. 2020-10-13T20:06:35.23 0.3 undecidable manual S 8 32.4453 50 0.04 73
IV.MOMA.HNZ. 2020-10-13T20:06:34.08 0.3 undecidable manual S 266 28.3494 50 -0.01 74
IV.ARRO.EHZ. 2020-10-13T20:06:34.29 0.6 undecidable manual S 205 29.748 50 -0.18 48
IT.GNU.HGZ. 2020-10-13T20:06:34.48 0.6 undecidable manual S 266 28.3494 50 0.39 46
IV.ASSB.HHZ. 2020-10-13T20:06:34.82 0.6 undecidable manual S 319 32.1456 50 -0.27 46
IV.EL6.EHZ. 2020-10-13T20:06:34.45 0.3 undecidable manual P 15 58.0974 50 0.07 69
IV.LNSS.HHZ. 2020-10-13T20:06:33.34 0.3 undecidable manual S 158 26.4513 50 -0.22 71
IV.FDMO.HHZ. 2020-10-13T20:06:33.66 0.6 undecidable manual S 30 27.3504 50 -0.16 48
IV.MC2.EHZ. 2020-10-13T20:06:33.04 0.6 undecidable manual S 66 24.1536 50 0.09 49
IV.SNTG.HHZ. 2020-10-13T20:06:32.86 0.6 undecidable manual P 2 47.9187 50 0.04 47
IV.MF5.EHZ. 2020-10-13T20:06:32.74 0.6 undecidable manual P 67 47.7189 50 -0.04 47
IV.ATCC.EHZ. 2020-10-13T20:06:32.55 0.3 undecidable manual P 331 46.0206 50 0.02 72
IT.FOPC.HGZ. 2020-10-13T20:06:32.61 0.6 undecidable manual S 313 23.8539 50 -0.26 47
IV.CSP1.EHZ. 2020-10-13T20:06:31.21 0.1 undecidable manual P 38 37.8288 50 -0.05 96
IV.FEMA.HNZ. 2020-10-13T20:06:31.58 0.3 undecidable manual S 35 18.7701 120 0.12 74
IV.RM33.EHZ. 2020-10-13T20:06:31.92 0.3 undecidable manual P 145 42.4242 50 -0.06 72
IV.T1299.HNN. 2020-10-13T20:06:31.52 0.6 undecidable manual P 125 36.3414 50 0.48 44
IT.MTCL.HGZ. 2020-10-13T20:06:31.62 0.3 undecidable manual S 19 20.0688 118 -0.23 72
IV.SMA1.EHZ. 2020-10-13T20:06:31.96 0.6 undecidable manual P 122 40.2264 50 0.33 45
IV.PF6.EHN. 2020-10-13T20:06:31.78 0.1 undecidable manual P 33 41.5251 50 -0.05 96
IV.CESI.HHZ. 2020-10-13T20:06:31.78 0.3 undecidable manual S 357 20.1687 118 -0.1 74
IV.ARRO.EHZ. 2020-10-13T20:06:30.01 0.6 undecidable manual P 205 29.748 50 -0.02 49
IT.GNU.HGZ. 2020-10-13T20:06:30.00 0.1 undecidable manual P 266 28.3494 50 0.19 95
IV.MML1.HNE. 2020-10-13T20:06:30.50 0.3 undecidable manual P 8 32.4453 50 0.06 73
IV.GAVE.EHZ. 2020-10-13T20:06:30.18 0.3 undecidable manual S 187 14.6742 126 -0.09 75
IV.ASSB.HHZ. 2020-10-13T20:06:30.27 0.3 undecidable manual P 319 32.1456 50 -0.12 72
IV.NRCA.HHZ. 2020-10-13T20:06:30.53 0.6 undecidable manual S 86 16.0728 124 -0.12 49
IV.MMO1.EHZ. 2020-10-13T20:06:30.59 0.1 undecidable manual P 76 34.3434 50 -0.13 95
IV.CESX.HHZ. 2020-10-13T20:06:30.76 0.6 undecidable manual P 229 36.0417 50 -0.23 47
IV.MOMA.HNZ. 2020-10-13T20:06:30.02 0.6 undecidable manual P 266 28.3494 50 0.21 47
IT.FOPC.HGZ. 2020-10-13T20:06:29.10 0.1 undecidable manual P 313 23.8539 50 -0.01 100
IV.MC2.EHZ. 2020-10-13T20:06:29.17 0.3 undecidable manual P 66 24.1536 50 0.02 75
IV.LNSS.HHZ. 2020-10-13T20:06:29.38 0.3 undecidable manual P 158 26.4513 50 -0.13 73
IV.FDMO.HHZ. 2020-10-13T20:06:29.64 0.1 positive manual P 30 27.3504 50 -0.01 99
IV.CESI.HHZ. 2020-10-13T20:06:28.61 0.3 undecidable manual P 357 20.1687 118 0.07 74
IV.FEMA.HNZ. 2020-10-13T20:06:28.38 0.1 undecidable manual P 35 18.7701 120 0.09 99
IT.MTCL.HGZ. 2020-10-13T20:06:28.47 0.1 undecidable manual P 19 20.0688 118 -0.05 99
IV.GAVE.EHZ. 2020-10-13T20:06:27.86 0.3 negative manual P 187 14.6742 126 0.25 72
IV.NRCA.HHZ. 2020-10-13T20:06:27.88 0.1 positive manual P 86 16.0728 124 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.EHE. ML:1.8 0.0006799999999999999 0.86 AML other m 2020-10-13T20:06:30.62
IV.NRCA.HNN. ML:1.7 0.000483 0.12 AML other m 2020-10-13T20:06:30.65
IV.NRCA.HHN. ML:1.8 0.0005425 0.1 AML other m 2020-10-13T20:06:30.65
IV.GAVE.EHN. ML:1.9 0.0007055 1.48 AML other m 2020-10-13T20:06:30.00
IV.NRCA.HNE. ML:1.7 0.000441 1.46 AML other m 2020-10-13T20:06:31.17
IV.NRCA.HHE. ML:1.7 0.00040800000000000005 0.14 AML other m 2020-10-13T20:06:31.17
IV.CESI.HHN. ML:1.7 0.000384 0.2 AML other m 2020-10-13T20:06:32.04
IV.CESI.HHE. ML:1.4 0.000195 0.08 AML other m 2020-10-13T20:06:32.11
IV.FDMO.HHE. ML:1.4 0.00013350000000000002 1.72 AML other m 2020-10-13T20:06:33.91
IV.FDMO.HHN. ML:1.2 0.00009470000000000001 1.3 AML other m 2020-10-13T20:06:33.92
IV.LNSS.HHE. ML:1.7 0.0002805 1.88 AML other m 2020-10-13T20:06:33.98
IV.LNSS.HHN. ML:1.6 0.00022250000000000001 0.36 AML other m 2020-10-13T20:06:34.32
IV.ARRO.EHE. ML:1.3 0.0001053 0.78 AML other m 2020-10-13T20:06:35.44
IV.ASSB.HHN. ML:1.3 0.00009195 0.14 AML other m 2020-10-13T20:06:35.32
IV.ASSB.HHE. ML:1.2 0.00007384999999999999 0.48 AML other m 2020-10-13T20:06:35.42
IV.CESX.HHN. ML:1.3 0.00007730000000000001 0.36 AML other m 2020-10-13T20:06:36.66
IV.CESX.HHE. ML:1.3 0.00007985 0.5 AML other m 2020-10-13T20:06:37.32
IV.ARRO.EHN. ML:1.1 0.00006575 0.34 AML other m 2020-10-13T20:06:37.17
IV.RM33.EHN. ML:1.2 0.0000436 0.24 AML other m 2020-10-13T20:06:38.35
IV.RM33.EHE. ML:1.1 0.00004215 0.54 AML other m 2020-10-13T20:06:39.33
IV.ATCC.EHN. ML:1.2 0.000048799999999999994 0.96 AML other m 2020-10-13T20:06:40.48
IV.SNTG.HHE. ML:1.2 0.0000375 0.8 AML other m 2020-10-13T20:06:40.46
IV.SNTG.HHN. ML:1.0 0.00003245 0.48 AML other m 2020-10-13T20:06:40.46
IV.ATCC.EHE. ML:1.2 0.000048299999999999995 0.14 AML other m 2020-10-13T20:06:40.68
IV.EL6.EHE. ML:1.8 0.000136 0.82 AML other m 2020-10-13T20:06:43.69
IV.EL6.EHN. ML:1.7 0.00011350000000000001 1.76 AML other m 2020-10-13T20:06:43.00
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