Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 14-09-2020 and time 16:56:23 (UTC) in region 4 km W Campello sul Clitunno (PG)

A magnitude ML 1.8 earthquake occured in region: 4 km W Campello sul Clitunno (PG), on

  • 14-09-2020 16:56:23 (UTC)
  • 14-09-2020 18:56:23 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8070, 12.7380 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
Campello sul Clitunno PG 4 2442 2442
Castel Ritaldi PG 6 3278 5720
Trevi PG 8 8469 14189
Spoleto PG 8 38218 52407
Vallo di Nera PG 11 364 52771
Sant'Anatolia di Narco PG 12 564 53335
Montefalco PG 12 5679 59014
Scheggino PG 13 461 59475
Giano dell'Umbria PG 13 3846 63321
Cerreto di Spoleto PG 15 1075 64396
Foligno PG 17 57155 121551
Bevagna PG 18 5081 126632
Massa Martana PG 18 3770 130402
Sellano PG 18 1079 131481
Gualdo Cattaneo PG 19 6155 137636
Poggiodomo PG 19 117 137753

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km S of Foligno (57155 inhabitants)
28 Km N of Terni (111501 inhabitants)
44 Km SE of Perugia (166134 inhabitants)
67 Km NE of Viterbo (67173 inhabitants)
74 Km NW of L'Aquila (69753 inhabitants)
81 Km W of Teramo (54892 inhabitants)
90 Km N of Guidonia Montecelio (88673 inhabitants)
94 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 1.8 2020-09-14
16:56:23		 42.8073 12.7378 9 2021-02-26
14:56:15		 Bollettino Sismico Italiano INGV 86352391
Reviewed
Rev100 		ML 1.8 2020-09-14
16:56:23		 42.8147 12.7422 9 2020-09-14
17:03:52		 Sala Sismica INGV-Roma 82907071
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-14 16:56:23 ± 0.06
Latitude 42.8073 ± 0.0027
Longitude 12.7378 ± 0.0061
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86352391

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 432
Semi-minor axis of confidence ellipse (meter) 306
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 258
Circular confidence region, given by single value of horizontal uncertainty (meter) 430.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 59
Number of associated phases, regardless of their use for origin computation 49
Number of defining phases 49
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.12321
Epicentral distance of station farthest from the epicenter (degree) 0.70597
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 28
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 60
Type of magnitude ML
Reference to an origin 86352391
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-18 12:25:16

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 62
Type of magnitude ML
Reference to an origin 82907071
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-14 17:03:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSFR.HHZ. 2020-09-14T16:56:45.75 0.6 undecidable manual S 3 69.8745 50 0.67 39
IV.EL6.EHZ. 2020-09-14T16:56:44.55 0.6 undecidable manual S 27 64.9905 50 0.77 37
IV.FIAM.HHZ. 2020-09-14T16:56:44.52 1.0 undecidable manual S 152 67.377 50 0.1 23
IV.MF5.EHZ. 2020-09-14T16:56:43.69 0.6 undecidable manual S 71 61.9935 50 0.71 39
IV.SMA1.EHZ. 2020-09-14T16:56:41.06 0.6 undecidable manual S 112 52.503 50 0.62 41
IV.RM33.EHZ. 2020-09-14T16:56:40.43 0.3 undecidable manual S 130 51.1155 50 0.37 66
IV.MMO1.EHZ. 2020-09-14T16:56:39.50 0.6 undecidable manual S 78 49.0176 50 0 48
IV.ATCC.EHZ. 2020-09-14T16:56:38.38 0.3 undecidable manual S 349 42.624 50 0.56 64
IV.MML1.HNZ. 2020-09-14T16:56:37.20 0.3 undecidable manual S 29 38.9277 50 0.38 67
IV.MC2.EHZ. 2020-09-14T16:56:37.65 0.3 undecidable manual S 72 38.4282 50 0.95 55
IV.ARVD.HHZ. 2020-09-14T16:56:37.30 0.6 undecidable manual P 12 78.366 50 0 45
IV.FDMO.HHZ. 2020-09-14T16:56:36.93 0.3 undecidable manual S 48 38.1285 50 0.33 68
IV.TERO.HHZ. 2020-09-14T16:56:36.32 0.3 undecidable manual P 106 73.4709 50 -0.23 65
IV.ATVO.HHZ. 2020-09-14T16:56:36.14 0.6 undecidable manual P 337 69.1752 50 0.25 44
IV.EL6.EHZ. 2020-09-14T16:56:35.07 0.1 undecidable manual P 27 64.9905 50 -0.17 90
IV.FIAM.HHZ. 2020-09-14T16:56:35.52 0.3 undecidable manual P 152 67.377 50 -0.09 68
IV.LNSS.HHZ. 2020-09-14T16:56:35.32 0.3 undecidable manual S 132 33.5442 50 -0.05 73
IV.SSFR.HHZ. 2020-09-14T16:56:35.68 0.6 undecidable manual P 3 69.8745 50 -0.31 43
IV.MF5.EHZ. 2020-09-14T16:56:34.25 0.6 undecidable manual P 71 61.9935 50 -0.53 42
IV.NRCA.HHZ. 2020-09-14T16:56:34.40 0.3 undecidable manual S 84 30.747 50 -0.25 71
IV.ASSB.HHZ. 2020-09-14T16:56:33.52 0.3 undecidable manual S 346 26.8509 109 0.07 74
IV.MGAB.HHZ. 2020-09-14T16:56:33.17 0.3 undecidable manual P 283 52.2033 50 -0.1 70
IV.ARRO.EHZ. 2020-09-14T16:56:33.63 0.3 undecidable manual S 175 25.4523 110 0.66 63
IV.CESX.HHZ. 2020-09-14T16:56:33.21 0.6 undecidable manual S 209 25.2525 110 0.29 47
IV.CESI.HHZ. 2020-09-14T16:56:33.07 0.3 undecidable manual S 32 25.752 110 -0.02 75
IV.MURB.HNZ. 2020-09-14T16:56:33.12 0.6 undecidable manual P 341 53.4021 50 -0.34 44
IV.SMA1.EHZ. 2020-09-14T16:56:33.16 0.1 undecidable manual P 112 52.503 50 -0.16 92
IV.RM33.EHZ. 2020-09-14T16:56:32.74 0.3 undecidable manual P 130 51.1155 50 -0.36 66
IV.T1299.HNZ. 2020-09-14T16:56:32.53 0.1 undecidable manual P 113 48.3183 50 -0.14 93
IV.MMO1.EHZ. 2020-09-14T16:56:32.40 0.1 undecidable manual P 78 49.0176 50 -0.38 89
IV.GAVE.EHZ. 2020-09-14T16:56:31.17 0.3 undecidable manual S 135 18.0708 117 0.55 67
IV.ATCC.EHZ. 2020-09-14T16:56:31.64 0.3 undecidable manual P 349 42.624 50 -0.16 70
IV.MC2.EHZ. 2020-09-14T16:56:31.00 0.3 undecidable manual P 72 38.4282 50 -0.15 71
IV.FDMO.HHZ. 2020-09-14T16:56:30.82 0.3 undecidable manual P 48 38.1285 50 -0.28 69
IV.MML1.HNZ. 2020-09-14T16:56:30.96 0.3 undecidable manual P 29 38.9277 50 -0.26 69
IT.FOPC.HGZ. 2020-09-14T16:56:30.84 0.1 undecidable manual S 351 18.2706 117 0.16 98
IV.MOMA.HHZ. 2020-09-14T16:56:29.59 0.3 undecidable manual S 268 13.6752 124 0.28 72
IV.LNSS.HHZ. 2020-09-14T16:56:29.97 0.3 undecidable manual P 132 33.5442 50 -0.42 68
IT.MTCL.HGZ. 2020-09-14T16:56:29.55 0.3 undecidable manual P 46 29.6481 50 -0.25 71
IT.GNU.HGZ. 2020-09-14T16:56:29.53 0.3 undecidable manual S 268 13.6752 124 0.22 73
IV.ARRO.EHZ. 2020-09-14T16:56:29.03 0.3 undecidable manual P 175 25.4523 110 0.03 74
IV.NRCA.HHZ. 2020-09-14T16:56:29.51 0.1 negative manual P 84 30.747 50 -0.46 90
IV.CESI.HHZ. 2020-09-14T16:56:28.89 0.1 undecidable manual P 32 25.752 110 -0.18 96
IV.ASSB.HHZ. 2020-09-14T16:56:28.90 0.1 negative manual P 346 26.8509 109 -0.38 92
IV.CESX.HHZ. 2020-09-14T16:56:28.85 0.3 undecidable manual P 209 25.2525 110 -0.12 73
IT.FOPC.HGZ. 2020-09-14T16:56:27.73 0.1 undecidable manual P 351 18.2706 117 0.05 100
IV.GAVE.EHZ. 2020-09-14T16:56:27.50 0.1 negative manual P 135 18.0708 117 -0.14 98
IV.MOMA.HHZ. 2020-09-14T16:56:26.74 0.1 negative manual P 268 13.6752 124 -0.15 99
IT.GNU.HGZ. 2020-09-14T16:56:26.80 0.3 undecidable manual P 268 13.6752 124 -0.09 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOMA.HHN. ML:1.9 0.0008215551999999999 0.1664 AML other m 2020-09-14T16:56:30.34
IV.MOMA.HNN. ML:1.8 0.0007638369 0.1664 AML other m 2020-09-14T16:56:30.35
IV.MOMA.HHE. ML:1.9 0.00080935395 0.1408 AML other m 2020-09-14T16:56:30.63
IV.MOMA.HNE. ML:1.8 0.0007330172500000001 0.1536 AML other m 2020-09-14T16:56:30.64
IV.GAVE.HNE. ML:2.1 0.00106562005 0.1536 AML other m 2020-09-14T16:56:32.69
IV.GAVE.EHE. ML:2.1 0.001062436 0.1664 AML other m 2020-09-14T16:56:32.70
IV.GAVE.HNN. ML:1.5 0.00027554909999999997 0.128 AML other m 2020-09-14T16:56:32.79
IV.GAVE.EHN. ML:2.0 0.0008625632999999999 0.1408 AML other m 2020-09-14T16:56:32.74
IV.CESI.HHN. ML:2.0 0.00060131315 0.2176 AML other m 2020-09-14T16:56:33.51
IV.CESI.HNN. ML:2.0 0.000569705 0.2176 AML other m 2020-09-14T16:56:33.62
IV.ASSB.HHN. ML:2.0 0.0005070912999999999 0.1792 AML other m 2020-09-14T16:56:34.05
IV.ARRO.EHN. ML:1.6 0.0002386833 1.7568 AML other m 2020-09-14T16:56:34.09
IV.ASSB.HHE. ML:1.8 0.00036591229999999997 0.2304 AML other m 2020-09-14T16:56:34.02
IV.CESI.HHE. ML:1.8 0.0003625873 0.1152 AML other m 2020-09-14T16:56:34.25
IV.CESI.HNE. ML:1.8 0.00034435995 0.1152 AML other m 2020-09-14T16:56:34.25
IV.CESX.HHN. ML:1.8 0.00040332489999999997 0.3968 AML other m 2020-09-14T16:56:34.33
IV.CESX.HHE. ML:2.0 0.00064622415 0.4096 AML other m 2020-09-14T16:56:35.37
IV.NRCA.HHE. ML:2.0 0.0004564403 1.8592 AML other m 2020-09-14T16:56:35.02
IV.NRCA.HNE. ML:1.9 0.0004165663 1.8592 AML other m 2020-09-14T16:56:35.95
IV.LNSS.HNE. ML:2.0 0.00039185705 0.3072 AML other m 2020-09-14T16:56:36.19
IV.NRCA.HNN. ML:1.9 0.0003575659 0.1152 AML other m 2020-09-14T16:56:36.27
IV.NRCA.HHN. ML:1.9 0.00038885565 0.1024 AML other m 2020-09-14T16:56:36.26
IV.LNSS.HHE. ML:2.0 0.0004118444 0.2048 AML other m 2020-09-14T16:56:37.11
IV.FDMO.HHE. ML:1.6 0.00015292804999999997 0.2176 AML other m 2020-09-14T16:56:37.26
IV.ARRO.EHE. ML:1.6 0.0002426637 0.2048 AML other m 2020-09-14T16:56:37.50
IV.LNSS.HHN. ML:2.0 0.0004670014 0.1152 AML other m 2020-09-14T16:56:38.88
IV.LNSS.HNN. ML:2.0 0.00042175755 0.128 AML other m 2020-09-14T16:56:38.89
IV.ATCC.EHE. ML:1.9 0.00023126970000000003 0.1792 AML other m 2020-09-14T16:56:38.89
IV.FDMO.HHN. ML:1.6 0.0001575753 0.1408 AML other m 2020-09-14T16:56:39.51
IV.ATCC.EHN. ML:1.9 0.0002529858 1.7824 AML other m 2020-09-14T16:56:40.03
IV.RM33.EHN. ML:1.7 0.0001353929 0.2176 AML other m 2020-09-14T16:56:42.16
IV.RM33.HNN. ML:1.7 0.000140093 0.2304 AML other m 2020-09-14T16:56:42.17
IV.RM33.EHE. ML:1.7 0.00011943013499999999 0.2816 AML other m 2020-09-14T16:56:42.78
IV.RM33.HNE. ML:1.8 0.0001571074 0.2816 AML other m 2020-09-14T16:56:42.65
IV.MURB.HNN. ML:2.0 0.00024910255 0.2048 AML other m 2020-09-14T16:56:43.14
IV.MURB.HHE. ML:2.0 0.00022549180000000003 0.2688 AML other m 2020-09-14T16:56:43.98
IV.MURB.HNE. ML:2.0 0.0002636171 0.2688 AML other m 2020-09-14T16:56:43.71
IV.SMA1.EHN. ML:1.7 0.00013261234999999998 0.1792 AML other m 2020-09-14T16:56:43.87
IV.MURB.HHN. ML:2.0 0.00026881525 0.256 AML other m 2020-09-14T16:56:44.36
IV.SMA1.EHE. ML:1.7 0.00012553235000000001 0.2816 AML other m 2020-09-14T16:56:45.13
IV.EL6.EHE. ML:2.0 0.0002037545 0.2048 AML other m 2020-09-14T16:56:45.77
IV.EL6.EHN. ML:2.0 0.00018924685000000003 0.1408 AML other m 2020-09-14T16:56:45.72
IV.MF5.EHE. ML:1.6 0.00007671995 0.2176 AML other m 2020-09-14T16:56:46.14
IV.MGAB.HHN. ML:1.6 0.00009391073 0.2432 AML other m 2020-09-14T16:56:46.93
IV.MGAB.HNN. ML:1.6 0.000105129675 0.2816 AML other m 2020-09-14T16:56:46.84
IV.MF5.EHN. ML:1.6 0.00008553392500000001 0.1792 AML other m 2020-09-14T16:56:46.96
IV.FIAM.HHN. ML:1.2 0.000029461624999999998 0.2048 AML other m 2020-09-14T16:56:47.74
IV.SSFR.HHE. ML:1.9 0.0001299769 0.1536 AML other m 2020-09-14T16:56:47.74
IV.SSFR.HHN. ML:2.0 0.00016038589999999999 1.744 AML other m 2020-09-14T16:56:47.94
IV.SSFR.HNN. ML:2.1 0.000193273495 0.2048 AML other m 2020-09-14T16:56:47.95
IV.SSFR.HNE. ML:2.0 0.000147626115 0.2432 AML other m 2020-09-14T16:56:48.19
IV.TERO.HHE. ML:1.4 0.000042005114999999996 0.2688 AML other m 2020-09-14T16:56:48.54
IV.ARVD.HHE. ML:1.3 0.000028537705 0.2304 AML other m 2020-09-14T16:56:49.57
IV.ATVO.HHE. ML:1.5 0.000049549345 0.2048 AML other m 2020-09-14T16:56:49.67
IV.MGAB.HHE. ML:1.5 0.000073149575 0.3712 AML other m 2020-09-14T16:56:49.65
IV.ATVO.HHN. ML:1.4 0.000038887665 0.2688 AML other m 2020-09-14T16:56:49.85
IV.FIAM.HNN. ML:2.4 0.00041516350000000003 1.024 AML other m 2020-09-14T16:56:50.57
IV.TERO.HHN. ML:1.5 0.00004671876 0.2048 AML other m 2020-09-14T16:56:50.73
IV.ARVD.HHN. ML:1.2 0.000021455670499999998 0.2304 AML other m 2020-09-14T16:56:52.47
IV.FIAM.HHE. ML:1.2 0.000029212034999999997 1.2576 AML other m 2020-09-14T16:56:53.00
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