Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 05-10-2020 and time 12:20:10 (UTC) in region 1 km E Spoleto (PG)

A magnitude ML 2.0 earthquake occured in region: 1 km E Spoleto (PG), on

  • 05-10-2020 12:20:10 (UTC)
  • 05-10-2020 14:20:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7400, 12.7510 at 8 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
Spoleto PG 1 38218 38218
Sant'Anatolia di Narco PG 7 564 38782
Scheggino PG 7 461 39243
Campello sul Clitunno PG 9 2442 41685
Vallo di Nera PG 10 364 42049
Castel Ritaldi PG 11 3278 45327
Ferentillo TR 14 1913 47240
Trevi PG 15 8469 55709
Poggiodomo PG 15 117 55826
Montefranco TR 16 1276 57102
Cerreto di Spoleto PG 16 1075 58177
Arrone TR 17 2763 60940
Acquasparta TR 18 4778 65718
Giano dell'Umbria PG 18 3846 69564
Polino TR 19 233 69797
Montefalco PG 19 5679 75476
Massa Martana PG 19 3770 79246
Monteleone di Spoleto PG 19 599 79845

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km NE of Terni (111501 inhabitants)
24 Km S of Foligno (57155 inhabitants)
50 Km SE of Perugia (166134 inhabitants)
64 Km NE of Viterbo (67173 inhabitants)
68 Km NW of L'Aquila (69753 inhabitants)
79 Km W of Teramo (54892 inhabitants)
82 Km N of Guidonia Montecelio (88673 inhabitants)
86 Km N of Tivoli (56533 inhabitants)
97 Km N of Roma (2864731 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 2.0 2020-10-05
12:20:10		 42.7403 12.7512 8 2021-02-26
14:56:00		 Bollettino Sismico Italiano INGV 83958921
Reviewed
Rev100 		ML 2.1 2020-10-05
12:20:10		 42.7433 12.7502 8 2020-10-05
12:28:10		 Sala Sismica INGV-Roma 83524401
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-05 12:20:10 ± 0.04
Latitude 42.7403 ± 0.0027
Longitude 12.7512 ± 0.0037
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 83958921

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 266
Semi-minor axis of confidence ellipse (meter) 237
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 224
Circular confidence region, given by single value of horizontal uncertainty (meter) 270.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 73
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 33
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.11511
Epicentral distance of station farthest from the epicenter (degree) 0.47394
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 38
Type of magnitude ML
Reference to an origin 83958921
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-11-11 17:24:40

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 32
Type of magnitude ML
Reference to an origin 83524401
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-05 12:28:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MTRA.EHZ. 2020-10-05T12:20:27.43 0.3 undecidable manual S 88 52.6029 50 0.28 66
IV.SMA1.EHZ. 2020-10-05T12:20:26.55 0.3 undecidable manual S 104 49.2174 50 0.32 66
IV.MMO1.EHZ. 2020-10-05T12:20:26.44 0.3 undecidable manual S 69 50.0166 50 -0.03 70
IV.RM33.EHZ. 2020-10-05T12:20:25.28 0.3 undecidable manual S 124 45.7209 50 -0.03 71
IV.MML1.HNE. 2020-10-05T12:20:25.60 0.6 undecidable manual S 23 45.1215 50 0.45 43
IV.MC2.EHZ. 2020-10-05T12:20:24.24 0.3 undecidable manual S 62 40.3263 50 0.35 67
IV.FDMO.HHZ. 2020-10-05T12:20:24.62 0.3 undecidable manual S 40 42.7239 50 0.1 70
IV.ASSB.HHZ. 2020-10-05T12:20:22.33 0.3 undecidable manual S 347 34.3434 50 0.04 72
IV.NRCA.HHZ. 2020-10-05T12:20:21.41 0.3 undecidable manual S 71 31.3464 105 0.13 71
IV.CESI.HHZ. 2020-10-05T12:20:21.43 0.3 undecidable manual S 23 31.8459 105 -0.05 72
IV.LNSS.HHZ. 2020-10-05T12:20:20.08 0.3 undecidable manual S 123 28.0497 106 -0.12 72
IV.MMO1.EHZ. 2020-10-05T12:20:19.29 0.1 negative manual P 69 50.0166 50 -0.24 90
IV.SMA1.EHZ. 2020-10-05T12:20:19.35 0.1 undecidable manual P 104 49.2174 50 -0.04 94
IV.ATCC.EHE. 2020-10-05T12:20:19.84 0.6 undecidable manual P 350 50.2164 50 0.3 44
IV.MTRA.EHZ. 2020-10-05T12:20:19.61 0.1 negative manual P 88 52.6029 50 -0.31 88
IV.MML1.HNE. 2020-10-05T12:20:18.79 0.3 undecidable manual P 23 45.1215 50 0.03 71
IV.FDMO.HHZ. 2020-10-05T12:20:18.36 0.3 undecidable manual P 40 42.7239 50 -0.04 71
IV.RM33.EHZ. 2020-10-05T12:20:18.54 0.1 undecidable manual P 124 45.7209 50 -0.32 89
IV.MC2.EHZ. 2020-10-05T12:20:17.96 0.1 undecidable manual P 62 40.3263 50 -0.07 95
IV.ARRO.EHZ. 2020-10-05T12:20:17.28 0.3 undecidable manual S 176 17.871 115 0.39 69
IV.CESX.HHZ. 2020-10-05T12:20:17.37 0.3 undecidable manual S 223 19.869 113 -0.13 73
IV.ASSB.HHZ. 2020-10-05T12:20:16.80 0.1 positive manual P 347 34.3434 50 -0.31 91
IV.MOMA.HHZ. 2020-10-05T12:20:16.36 0.3 undecidable manual S 296 16.3725 117 -0.04 74
IT.GNU.HGZ. 2020-10-05T12:20:16.81 0.6 undecidable manual S 296 16.3725 117 0.41 46
IV.NRCA.HHZ. 2020-10-05T12:20:16.29 0.1 negative manual P 71 31.3464 105 -0.24 93
IV.CESI.HHZ. 2020-10-05T12:20:16.52 0.1 positive manual P 23 31.8459 105 -0.12 95
IV.GAVE.EHZ. 2020-10-05T12:20:15.49 0.3 undecidable manual S 115 12.7761 123 0.15 73
IV.LNSS.HHZ. 2020-10-05T12:20:15.68 0.1 undecidable manual P 123 28.0497 106 -0.23 94
IV.CESX.HHZ. 2020-10-05T12:20:14.34 0.3 undecidable manual P 223 19.869 113 -0.01 74
IV.ARRO.EHZ. 2020-10-05T12:20:14.11 0.1 positive manual P 176 17.871 115 0.11 97
IV.GAVE.EHZ. 2020-10-05T12:20:13.22 0.1 negative manual P 115 12.7761 123 0.12 98
IV.MOMA.HHZ. 2020-10-05T12:20:13.71 0.1 negative manual P 296 16.3725 117 0 100
IT.GNU.HGZ. 2020-10-05T12:20:13.83 0.6 undecidable manual P 296 16.3725 117 0.12 49
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARRO.EHN. ML:1.9 0.00075057525 0.2176 AML other m 2020-10-05T12:20:20.11
IV.GAVE.EHN. ML:2.3 0.002338001 0.2368 AML other m 2020-10-05T12:20:17.33
IV.GAVE.EHE. ML:2.4 0.0028432875 0.1792 AML other m 2020-10-05T12:20:16.53
IV.GAVE.HNN. ML:1.8 0.000674208 0.2496 AML other m 2020-10-05T12:20:17.32
IV.GAVE.HNE. ML:2.4 0.0030019559999999996 0.1984 AML other m 2020-10-05T12:20:16.52
IV.MOMA.HNE. ML:2.1 0.0013457080000000001 0.2304 AML other m 2020-10-05T12:20:17.55
IV.MOMA.HHE. ML:2.2 0.0014120214999999998 0.2368 AML other m 2020-10-05T12:20:17.55
IV.MOMA.HHN. ML:2.1 0.0013118194999999998 0.2048 AML other m 2020-10-05T12:20:19.74
IV.MOMA.HNN. ML:2.1 0.0012470254999999999 0.2048 AML other m 2020-10-05T12:20:19.84
IV.ARRO.EHE. ML:2.0 0.0009569787000000001 0.2048 AML other m 2020-10-05T12:20:20.10
IV.CESX.HHN. ML:2.2 0.0012637055 0.3008 AML other m 2020-10-05T12:20:19.87
IV.CESX.HHE. ML:2.3 0.001665668 0.6208 AML other m 2020-10-05T12:20:19.34
IV.LNSS.HNE. ML:2.3 0.0011371654 0.3072 AML other m 2020-10-05T12:20:22.73
IV.LNSS.HHE. ML:2.3 0.00114796925 0.32 AML other m 2020-10-05T12:20:22.72
IV.LNSS.HHN. ML:2.3 0.0010741070000000001 0.3392 AML other m 2020-10-05T12:20:22.68
IV.LNSS.HNN. ML:2.2 0.0009794924000000001 0.3456 AML other m 2020-10-05T12:20:22.68
IV.NRCA.HNE. ML:2.0 0.0005314471 0.16 AML other m 2020-10-05T12:20:24.14
IV.NRCA.HHE. ML:2.1 0.00054832935 0.16 AML other m 2020-10-05T12:20:24.13
IV.NRCA.HNN. ML:1.8 0.0003320474 0.1152 AML other m 2020-10-05T12:20:23.49
IV.NRCA.HHN. ML:1.9 0.0003578114 0.1216 AML other m 2020-10-05T12:20:23.48
IV.CESI.HHE. ML:1.8 0.0003096341 0.2368 AML other m 2020-10-05T12:20:21.84
IV.CESI.HNN. ML:2.2 0.0006660867999999999 0.256 AML other m 2020-10-05T12:20:21.70
IV.CESI.HHN. ML:2.2 0.0006720373 0.2432 AML other m 2020-10-05T12:20:21.70
IV.CESI.HNE. ML:1.8 0.00029563023900000003 0.2048 AML other m 2020-10-05T12:20:22.52
IV.ASSB.HHE. ML:2.0 0.00045073315000000003 0.384 AML other m 2020-10-05T12:20:22.87
IV.ASSB.HHN. ML:1.9 0.00034980415 0.3392 AML other m 2020-10-05T12:20:22.61
IV.FDMO.HHE. ML:2.0 0.00032281975 0.2624 AML other m 2020-10-05T12:20:26.20
IV.FDMO.HHN. ML:1.8 0.00017985420000000003 0.32 AML other m 2020-10-05T12:20:25.97
IV.RM33.HNE. ML:2.0 0.00026886014999999994 0.3392 AML other m 2020-10-05T12:20:29.06
IV.RM33.EHE. ML:1.8 0.00020737224999999997 0.2432 AML other m 2020-10-05T12:20:28.61
IV.RM33.EHN. ML:1.9 0.00024048825000000002 0.2816 AML other m 2020-10-05T12:20:27.65
IV.RM33.HNN. ML:1.9 0.0002538086 0.5056 AML other m 2020-10-05T12:20:27.08
IV.SMA1.EHE. ML:2.1 0.00030808235 0.32 AML other m 2020-10-05T12:20:29.81
IV.SMA1.EHN. ML:2.1 0.0003502065 0.2944 AML other m 2020-10-05T12:20:30.31
IV.MTRA.HNN. ML:1.8 0.0001752088 0.512 AML other m 2020-10-05T12:20:30.72
IV.MTRA.EHN. ML:1.7 0.0001299459 0.1984 AML other m 2020-10-05T12:20:28.44
IV.MTRA.HNE. ML:1.8 0.00014830819000000002 0.256 AML other m 2020-10-05T12:20:32.55
IV.MTRA.EHE. ML:1.7 0.00013110393 0.4544 AML other m 2020-10-05T12:20:31.44
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
Waveforms Seismic signals in miniseed + resp format Download