Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 08-10-2021 and time 06:01:10 (Italy) in region 4 km E Campello sul Clitunno (PG)

A magnitude ML 2.1 earthquake occured in region: 4 km E Campello sul Clitunno (PG), on

  • 08-10-2021 04:01:10 (UTC)
  • 08-10-2021 06:01:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8260, 12.8210 at 10 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
Campello sul Clitunno PG 4 2442 2442
Vallo di Nera PG 7 364 2806
Cerreto di Spoleto PG 8 1075 3881
Trevi PG 8 8469 12350
Sant'Anatolia di Narco PG 10 564 12914
Sellano PG 11 1079 13993
Castel Ritaldi PG 12 3278 17271
Spoleto PG 12 38218 55489
Scheggino PG 13 461 55950
Montefalco PG 16 5679 61629
Poggiodomo PG 16 117 61746
Foligno PG 17 57155 118901
Preci PG 19 724 119625
Giano dell'Umbria PG 20 3846 123471
Cascia PG 20 3217 126688

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km SE of Foligno (57155 inhabitants)
33 Km NE of Terni (111501 inhabitants)
47 Km SE of Perugia (166134 inhabitants)
71 Km NW of L'Aquila (69753 inhabitants)
74 Km NE of Viterbo (67173 inhabitants)
75 Km W of Teramo (54892 inhabitants)
92 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 2.1 2021-10-08
04:01:10		 42.8262 12.8207 10 2022-03-30
13:04:27		 Bollettino Sismico Italiano INGV 99440731
Reviewed
Rev100 		ML 2.1 2021-10-08
04:01:10		 42.8263 12.8247 13 2021-10-08
04:08:29		 Sala Sismica INGV-Roma 96338011
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-08 04:01:10 ± 0.04
Latitude 42.8262 ± 0.0018
Longitude 12.8207 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 99440731

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 249
Semi-minor axis of confidence ellipse (meter) 203
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 180
Circular confidence region, given by single value of horizontal uncertainty (meter) 250.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 66
Number of associated phases, regardless of their use for origin computation 57
Number of defining phases 56
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.67719
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 29
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 34
Type of magnitude ML
Reference to an origin 99440731
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-01-07 16:00:30

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 34
Type of magnitude ML
Reference to an origin 96338011
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-08 04:08:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RIBO.EHZ.01 2021-10-08T04:01:55.74 3.0 undecidable manual S 3.11 0
IV.EL6.EHZ. 2021-10-08T04:01:30.31 0.6 undecidable manual S 22 60.2952 50 0.61 40
IV.MURB.HNZ. 2021-10-08T04:01:29.04 0.6 undecidable manual S 334 54.1014 50 1 35
IV.GUMA.HHZ. 2021-10-08T04:01:27.49 0.6 undecidable manual S 58 49.3173 50 0.72 40
IV.SNTG.HHZ. 2021-10-08T04:01:26.80 0.6 undecidable manual S 12 48.618 50 0.23 46
IV.RM33.EHZ. 2021-10-08T04:01:26.43 0.6 undecidable manual S 137 47.619 50 0.11 47
IV.SMA1.EHZ. 2021-10-08T04:01:26.96 0.6 undecidable manual S 117 47.2194 50 0.75 39
IV.MTRA.EHE. 2021-10-08T04:01:26.86 0.6 undecidable manual S 99 47.5191 50 0.58 42
IV.T1299.HNN. 2021-10-08T04:01:25.42 0.6 undecidable manual S 119 43.2234 50 0.28 46
IV.CSP1.EHZ. 2021-10-08T04:01:25.06 0.6 undecidable manual S 46 42.9237 50 0 48
IV.ATCC.EHZ. 2021-10-08T04:01:25.07 0.6 undecidable manual S 340 42.4242 50 0.14 47
IV.MMO1.EHZ. 2021-10-08T04:01:24.75 0.6 undecidable manual S 79 41.9247 50 -0.05 48
IV.ARVD.HHZ. 2021-10-08T04:01:24.13 0.3 undecidable manual P 7 75.1692 50 0.08 67
IV.SEF1.HNE. 2021-10-08T04:01:23.12 0.6 undecidable manual S 16 37.0296 50 -0.37 45
IV.MC2.EHZ. 2021-10-08T04:01:22.05 0.6 undecidable manual S 72 31.4463 50 0.06 49
IV.MML1.EHZ. 2021-10-08T04:01:22.67 0.6 undecidable manual S 21 34.1436 50 -0.05 49
IV.CESX.HHZ. 2021-10-08T04:01:21.64 0.6 undecidable manual S 218 30.747 50 -0.17 48
IV.FDMO.HHZ. 2021-10-08T04:01:21.70 0.6 undecidable manual S 43 31.8459 50 -0.4 45
IV.MURB.HNZ. 2021-10-08T04:01:21.05 0.3 undecidable manual P 334 54.1014 50 0.25 68
IV.MF5.EHZ. 2021-10-08T04:01:21.38 0.3 undecidable manual P 71 54.9006 50 0.45 65
IV.EL6.EHZ. 2021-10-08T04:01:21.57 0.1 undecidable manual P 22 60.2952 50 -0.18 91
IV.LNSS.HHZ. 2021-10-08T04:01:21.36 0.6 undecidable manual S 144 30.5472 50 -0.4 46
IV.GUMA.HHZ. 2021-10-08T04:01:20.22 0.3 undecidable manual P 58 49.3173 50 0.15 70
IV.ASSB.HHZ. 2021-10-08T04:01:20.54 0.6 undecidable manual S 331 27.3504 50 -0.37 46
IV.ARRO.EHZ. 2021-10-08T04:01:20.75 0.6 undecidable manual S 189 27.75 50 -0.26 47
IV.SMA1.EHZ. 2021-10-08T04:01:20.04 0.3 undecidable manual P 117 47.2194 50 0.3 68
IV.MTRA.EHE. 2021-10-08T04:01:19.69 0.3 undecidable manual P 99 47.5191 50 -0.09 71
IV.FEMA.HNE. 2021-10-08T04:01:19.69 0.6 undecidable manual S 51 23.9538 113 -0.22 48
IV.ATCC.EHZ. 2021-10-08T04:01:19.08 0.1 undecidable manual P 340 42.4242 50 0.08 96
IV.SNTG.HHZ. 2021-10-08T04:01:19.70 0.1 undecidable manual P 12 48.618 50 -0.25 91
IT.MTCL.HGZ. 2021-10-08T04:01:19.55 0.6 undecidable manual S 38 23.6541 113 -0.25 48
IV.RM33.EHZ. 2021-10-08T04:01:19.65 0.3 undecidable manual P 137 47.619 50 -0.15 70
IV.NRCA.HHZ. 2021-10-08T04:01:19.62 0.6 undecidable manual S 88 23.8539 113 -0.27 47
IV.T1299.HNN. 2021-10-08T04:01:19.11 0.3 undecidable manual P 119 43.2234 50 -0.01 73
IV.MOMA.HHZ. 2021-10-08T04:01:18.95 0.6 undecidable manual S 263 20.5683 116 0.12 49
IV.CESI.HNZ. 2021-10-08T04:01:18.96 0.6 undecidable manual S 19 20.9679 115 0 50
IV.MMO1.EHZ. 2021-10-08T04:01:18.83 0.3 undecidable manual P 79 41.9247 50 -0.1 71
IT.FOPC.HGZ. 2021-10-08T04:01:18.49 0.6 undecidable manual S 329 18.5703 118 0.27 48
IT.GNU.HGE. 2021-10-08T04:01:18.95 0.6 undecidable manual S 263 20.5683 116 0.13 49
IV.CSP1.EHZ. 2021-10-08T04:01:18.97 0.1 undecidable manual P 46 42.9237 50 -0.11 95
IV.MML1.EHZ. 2021-10-08T04:01:17.52 0.1 undecidable manual P 21 34.1436 50 -0.21 94
IV.SEF1.HNE. 2021-10-08T04:01:17.75 0.6 undecidable manual P 16 37.0296 50 -0.42 45
IV.GAVE.HNZ. 2021-10-08T04:01:17.63 0.6 undecidable manual S 158 15.9729 122 0.18 49
IV.FDMO.HHZ. 2021-10-08T04:01:17.17 0.1 undecidable manual P 43 31.8459 50 -0.2 95
IV.MC2.EHZ. 2021-10-08T04:01:17.31 0.1 undecidable manual P 72 31.4463 50 0.01 99
IV.LNSS.HHZ. 2021-10-08T04:01:16.99 0.1 undecidable manual P 144 30.5472 50 -0.18 96
IV.FEMA.HNE. 2021-10-08T04:01:16.12 0.1 undecidable manual P 51 23.9538 113 0.01 100
IV.CESX.HHZ. 2021-10-08T04:01:16.97 0.1 undecidable manual P 218 30.747 50 -0.23 95
IV.ASSB.HHZ. 2021-10-08T04:01:16.44 0.1 undecidable manual P 331 27.3504 50 -0.24 95
IV.ARRO.EHZ. 2021-10-08T04:01:16.63 0.1 positive manual P 189 27.75 50 -0.11 97
IT.FOPC.HGZ. 2021-10-08T04:01:15.24 0.1 undecidable manual P 329 18.5703 118 0.11 99
IV.NRCA.HHZ. 2021-10-08T04:01:15.97 0.1 negative manual P 88 23.8539 113 -0.12 98
IT.GNU.HGE. 2021-10-08T04:01:15.53 0.1 undecidable manual P 263 20.5683 116 0.05 100
IV.MOMA.HHZ. 2021-10-08T04:01:15.53 0.1 undecidable manual P 263 20.5683 116 0.05 100
IV.CESI.HNZ. 2021-10-08T04:01:15.63 0.1 undecidable manual P 19 20.9679 115 0.07 99
IT.MTCL.HGZ. 2021-10-08T04:01:15.89 0.3 undecidable manual P 38 23.6541 113 -0.15 73
IV.GAVE.HNZ. 2021-10-08T04:01:14.92 0.1 undecidable manual P 158 15.9729 122 0.24 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.HNE. ML:2.3 0.001865 0.5 AML other m 2021-10-08T04:01:18.05
IV.GAVE.HNN. ML:1.8 0.000569 0.2 AML other m 2021-10-08T04:01:18.39
IV.GAVE.EHN. ML:2.2 0.001605 0.78 AML other m 2021-10-08T04:01:18.30
IV.GAVE.EHE. ML:2.3 0.001865 0.2 AML other m 2021-10-08T04:01:18.30
IV.CESI.HNN. ML:2.3 0.0013085 0.46 AML other m 2021-10-08T04:01:19.19
IV.CESI.HHN. ML:2.2 0.0012175 0.46 AML other m 2021-10-08T04:01:19.19
IV.CESI.HHE. ML:2.2 0.001155 0.26 AML other m 2021-10-08T04:01:19.30
IV.CESI.HNE. ML:2.2 0.0011749999999999998 0.26 AML other m 2021-10-08T04:01:19.18
IV.MOMA.HHE. ML:2.1 0.000875 0.12 AML other m 2021-10-08T04:01:19.30
IV.MOMA.HNE. ML:2.1 0.0008505 0.14 AML other m 2021-10-08T04:01:19.30
IV.MOMA.HNN. ML:2.1 0.000877 0.6 AML other m 2021-10-08T04:01:19.50
IV.MOMA.HHN. ML:2.1 0.0008985000000000001 0.6 AML other m 2021-10-08T04:01:19.50
IV.NRCA.HNN. ML:2.0 0.0007225 1.4 AML other m 2021-10-08T04:01:19.16
IV.NRCA.HHE. ML:1.9 0.000447 0.06 AML other m 2021-10-08T04:01:20.21
IV.NRCA.HNE. ML:1.9 0.000465 0.08 AML other m 2021-10-08T04:01:20.22
IV.NRCA.HHN. ML:2.1 0.0007840000000000001 0.4 AML other m 2021-10-08T04:01:20.16
IV.ASSB.HHN. ML:2.1 0.0006605 0.18 AML other m 2021-10-08T04:01:21.45
IV.ASSB.HHE. ML:2.2 0.0007495000000000001 0.5 AML other m 2021-10-08T04:01:21.60
IV.LNSS.HHE. ML:2.0 0.000505 0.1 AML other m 2021-10-08T04:01:22.15
IV.CESX.HHN. ML:1.6 0.000205 0.84 AML other m 2021-10-08T04:01:22.61
IV.ARRO.EHE. ML:1.7 0.00029 0.8 AML other m 2021-10-08T04:01:22.23
IV.LNSS.HHN. ML:2.0 0.00045400000000000003 1.32 AML other m 2021-10-08T04:01:22.97
IV.ARRO.EHN. ML:1.7 0.00025550000000000003 0.16 AML other m 2021-10-08T04:01:22.77
IV.CESX.HHE. ML:1.6 0.00017099999999999998 1.36 AML other m 2021-10-08T04:01:22.80
IV.FDMO.HHN. ML:1.7 0.0002465 0.62 AML other m 2021-10-08T04:01:23.31
IV.FDMO.HHE. ML:1.8 0.000259 0.1 AML other m 2021-10-08T04:01:23.11
IV.CSP1.EHN. ML:2.2 0.000579 1.28 AML other m 2021-10-08T04:01:25.95
IV.ATCC.EHN. ML:2.0 0.000341 1.1 AML other m 2021-10-08T04:01:25.14
IV.CSP1.EHE. ML:2.2 0.00058 1.66 AML other m 2021-10-08T04:01:26.00
IV.ATCC.EHE. ML:1.9 0.00026700000000000004 0.42 AML other m 2021-10-08T04:01:26.05
IV.MURB.HNE. ML:2.3 0.000518 0.5 AML other m 2021-10-08T04:01:29.52
IV.MURB.HHE. ML:2.3 0.000505 0.5 AML other m 2021-10-08T04:01:29.53
IV.MURB.HNN. ML:2.3 0.000468 0.54 AML other m 2021-10-08T04:01:30.17
IV.MURB.HHN. ML:2.3 0.00046950000000000003 0.22 AML other m 2021-10-08T04:01:31.17
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