Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 08-09-2018 and time 21:30:06 (Italy) in region 5 km N Spoleto (PG)

A magnitude ML 2.3 earthquake occured in region: 5 km N Spoleto (PG), on

  • 08-09-2018 19:30:06 (UTC)
  • 08-09-2018 21:30:06 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7830, 12.7310 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 5 38218 38218
Campello sul Clitunno PG 6 2442 40660
Castel Ritaldi PG 7 3278 43938
Sant'Anatolia di Narco PG 10 564 44502
Trevi PG 11 8469 52971
Vallo di Nera PG 11 364 53335
Scheggino PG 11 461 53796
Giano dell'Umbria PG 14 3846 57642
Montefalco PG 14 5679 63321
Cerreto di Spoleto PG 16 1075 64396
Massa Martana PG 17 3770 68166
Acquasparta TR 18 4778 72944
Poggiodomo PG 18 117 73061
Ferentillo TR 19 1913 74974
Foligno PG 19 57155 132129
Bevagna PG 20 5081 137210
Sellano PG 20 1079 138289

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km S of Foligno (57155 inhabitants)
26 Km N of Terni (111501 inhabitants)
46 Km SE of Perugia (166134 inhabitants)
65 Km NE of Viterbo (67173 inhabitants)
73 Km NW of L'Aquila (69753 inhabitants)
81 Km W of Teramo (54892 inhabitants)
87 Km N of Guidonia Montecelio (88673 inhabitants)
91 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 2.3 2018-09-08
19:30:06		 42.783 12.7312 8 2019-06-04
09:16:15		 Bollettino Sismico Italiano INGV 68185561
Reviewed
Rev100 		ML 2.3 2018-09-08
19:30:06		 42.7923 12.7317 10 2018-09-08
19:37:40		 Sala Sismica INGV-Roma 60710701
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-09-08 19:30:06 ± 0.07
Latitude 42.7830 ± 0.0027
Longitude 12.7312 ± 0.0049
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 68185561

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 400
Semi-minor axis of confidence ellipse (meter) 127
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 240
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
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 60
Number of defining phases 60
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.20505
Epicentral distance of station farthest from the epicenter (degree) 1.00994
Number of stations at which the event was observed 42
Number of stations from which data was used for origin computation 42
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 86
Type of magnitude ML
Reference to an origin 60710701
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-09-08 19:37:40

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 84
Type of magnitude ML
Reference to an origin 68185561
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-05-02 13:07:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHZ. 2018-09-08T19:30:30.02 0.6 undecidable manual S 104 73.371 50 0.38 43
IV.ATFO.HHZ. 2018-09-08T19:30:28.72 0.6 undecidable manual S 349 65.9895 50 1.03 34
IV.EL6.EHZ. 2018-09-08T19:30:28.65 0.6 undecidable manual S 26 67.6767 50 0.53 42
IV.GUMA.HHZ. 2018-09-08T19:30:26.38 0.6 undecidable manual S 57 58.0974 50 0.82 38
IV.CRE.HHZ. 2018-09-08T19:30:26.85 0.3 undecidable manual P 326 112.0989 50 0.85 50
IV.PARC.HHZ. 2018-09-08T19:30:25.51 0.3 undecidable manual P 338 103.9182 50 0.77 53
IV.FOSV.EHZ. 2018-09-08T19:30:25.36 0.6 undecidable manual S 2 56.7987 50 0.12 47
IV.T0110.HHZ. 2018-09-08T19:30:25.13 0.3 undecidable manual P 125 105.2169 50 0.19 63
IV.MTRA.EHZ. 2018-09-08T19:30:24.76 0.6 undecidable manual S 93 54.3012 50 0.2 46
IV.VCEL.EHZ. 2018-09-08T19:30:24.71 0.3 undecidable manual P 115 100.3218 50 0.53 59
IV.SMA1.EHZ. 2018-09-08T19:30:24.34 0.6 undecidable manual S 109 52.1034 50 0.38 45
IV.RM33.EHZ. 2018-09-08T19:30:23.29 0.6 undecidable manual S 127 49.8168 50 -0.07 48
IV.CERT.HHZ. 2018-09-08T19:30:23.06 0.3 undecidable manual P 167 94.7385 50 -0.26 63
TV.SF04.EHZ. 2018-09-08T19:30:22.59 0.3 undecidable manual P 274 87.3459 50 0.41 62
IV.T1299.HNZ. 2018-09-08T19:30:22.95 0.3 undecidable manual S 110 47.8188 50 0.11 71
IV.ATPI.EHZ. 2018-09-08T19:30:21.29 0.3 undecidable manual P 340 78.6657 50 0.44 63
IV.ARVD.HHZ. 2018-09-08T19:30:21.08 0.3 undecidable manual P 12 81.1521 50 -0.14 66
IV.SEF1.HNZ. 2018-09-08T19:30:21.09 0.6 undecidable manual S 23 44.0226 50 -0.73 40
IV.PIEI.HHZ. 2018-09-08T19:30:21.78 0.3 undecidable manual P 349 84.9483 50 -0.04 67
IV.ATCC.EHZ. 2018-09-08T19:30:21.92 0.6 undecidable manual S 351 45.2214 50 -0.22 47
IV.CAFI.HHZ. 2018-09-08T19:30:21.88 0.3 undecidable manual P 315 86.6466 50 -0.2 65
IV.MC2.EHZ. 2018-09-08T19:30:20.97 0.6 undecidable manual S 69 39.8268 50 0.26 47
IV.LATE.HHZ. 2018-09-08T19:30:20.90 0.3 undecidable manual P 256 77.8665 50 0.17 67
IV.FRON.EHZ. 2018-09-08T19:30:20.99 0.3 undecidable manual P 360 81.5517 50 -0.29 64
IV.GIGS.HHZ. 2018-09-08T19:30:20.56 0.3 undecidable manual P 118 77.8665 50 -0.15 67
IV.FDMO.HHZ. 2018-09-08T19:30:20.39 0.6 undecidable manual S 46 40.3263 50 -0.45 45
IV.ATMI.HHZ. 2018-09-08T19:30:19.83 0.3 undecidable manual P 329 71.7726 50 0.05 69
IV.TERO.HHZ. 2018-09-08T19:30:19.70 0.3 undecidable manual P 104 73.371 50 -0.32 65
IV.ATVO.HHZ. 2018-09-08T19:30:19.80 0.3 undecidable manual P 339 71.4729 50 0.06 69
IV.ATFO.HHZ. 2018-09-08T19:30:18.96 0.3 undecidable manual P 349 65.9895 50 0.07 70
IV.NRCA.HHZ. 2018-09-08T19:30:18.22 0.6 undecidable manual S 80 31.6461 104 0.03 50
IV.EL6.EHZ. 2018-09-08T19:30:18.95 0.1 undecidable manual P 26 67.6767 50 -0.19 90
IV.LNSS.HHZ. 2018-09-08T19:30:18.20 0.3 undecidable manual S 128 32.1456 104 -0.15 73
IV.SACS.HHZ. 2018-09-08T19:30:18.93 0.3 undecidable manual P 277 67.2771 50 -0.15 68
IV.FIAM.HHZ. 2018-09-08T19:30:18.24 0.3 undecidable manual P 151 65.2902 50 -0.54 63
IV.SRES.HHZ. 2018-09-08T19:30:18.13 0.3 undecidable manual P 197 63.1923 50 -0.33 66
IV.FEMA.HNZ. 2018-09-08T19:30:18.63 0.6 undecidable manual S 52 32.6451 103 0.12 49
IV.MF5.EHZ. 2018-09-08T19:30:18.92 0.3 undecidable manual P 69 63.3921 50 0.43 65
IV.MURB.HHZ. 2018-09-08T19:30:17.28 0.3 undecidable manual P 343 55.7997 50 -0.04 71
IV.CAMP.HHZ. 2018-09-08T19:30:17.87 0.3 undecidable manual P 116 61.6938 50 -0.36 66
IV.GUMA.HHZ. 2018-09-08T19:30:17.99 0.1 undecidable manual P 57 58.0974 50 0.33 89
IV.FOSV.EHZ. 2018-09-08T19:30:17.13 0.1 undecidable manual P 2 56.7987 50 -0.34 89
IV.ATTE.HHZ. 2018-09-08T19:30:17.00 0.3 undecidable manual P 326 55.3002 50 -0.24 68
IV.CSP1.EHZ. 2018-09-08T19:30:16.57 0.1 undecidable manual P 48 51.5151 50 -0.09 95
IV.T1299.HNZ. 2018-09-08T19:30:16.11 0.1 undecidable manual P 110 47.8188 50 0.01 97
IV.SMA1.EHZ. 2018-09-08T19:30:16.78 0.1 undecidable manual P 109 52.1034 50 0.04 96
IV.SNTG.HHZ. 2018-09-08T19:30:16.67 0.3 undecidable manual P 18 55.0005 50 -0.53 64
IV.RM33.EHZ. 2018-09-08T19:30:16.19 0.1 undecidable manual P 127 49.8168 50 -0.21 93
IV.MTRA.EHZ. 2018-09-08T19:30:16.94 0.1 undecidable manual P 93 54.3012 50 -0.14 93
IV.CESI.HHZ. 2018-09-08T19:30:16.97 0.6 undecidable manual S 30 28.3494 105 -0.11 49
IV.ATCC.EHZ. 2018-09-08T19:30:15.43 0.1 undecidable manual P 351 45.2214 50 -0.26 93
IV.ARRO.EHZ. 2018-09-08T19:30:15.46 0.3 undecidable manual S 173 22.755 109 0.23 73
IV.SEF1.HNZ. 2018-09-08T19:30:15.14 0.3 undecidable manual P 23 44.0226 50 -0.36 68
IV.FDMO.HHZ. 2018-09-08T19:30:14.72 0.1 undecidable manual P 46 40.3263 50 -0.22 94
IV.MC2.EHZ. 2018-09-08T19:30:14.86 0.1 undecidable manual P 69 39.8268 50 0 98
IV.FEMA.HNZ. 2018-09-08T19:30:13.67 0.1 undecidable manual P 52 32.6451 103 0.08 99
IV.NRCA.HHZ. 2018-09-08T19:30:13.42 0.1 positive manual P 80 31.6461 104 0.01 100
IV.LNSS.HHZ. 2018-09-08T19:30:13.49 0.1 undecidable manual P 128 32.1456 104 -0.01 100
IV.CESI.HHZ. 2018-09-08T19:30:12.82 0.1 positive manual P 30 28.3494 105 0.05 100
IV.ARRO.EHZ. 2018-09-08T19:30:11.96 0.1 undecidable manual P 173 22.755 109 0.26 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASSB.HHN. ML:2.6 0.0022299999999999998 0.22 AML other m 2018-09-08T19:30:17.64
IV.CESI.HHN. ML:2.8 0.0034349999999999997 0.34 AML other m 2018-09-08T19:30:17.57
IV.ASSB.HHE. ML:2.7 0.00244 0.34 AML other m 2018-09-08T19:30:17.61
IV.ARRO.EHN. ML:2.0 0.000674 0.34 AML other m 2018-09-08T19:30:17.68
IV.ARRO.EHE. ML:2.0 0.0007794999999999999 1.14 AML other m 2018-09-08T19:30:18.68
IV.NRCA.HHE. ML:3.1 0.005735 0.18 AML other m 2018-09-08T19:30:18.49
IV.NRCA.HNE. ML:3.0 0.00538 0.16 AML other m 2018-09-08T19:30:18.49
IV.LNSS.HHE. ML:2.8 0.00294 1.76 AML other m 2018-09-08T19:30:18.07
IV.LNSS.HHN. ML:2.7 0.00235 1.58 AML other m 2018-09-08T19:30:19.92
IV.CESI.HHE. ML:2.4 0.0014500000000000001 0.6 AML other m 2018-09-08T19:30:19.01
IV.NRCA.HHN. ML:2.8 0.002665 0.64 AML other m 2018-09-08T19:30:19.47
IV.NRCA.HNN. ML:2.7 0.00256 0.62 AML other m 2018-09-08T19:30:19.48
IV.FDMO.HHN. ML:2.7 0.0016200000000000001 0.28 AML other m 2018-09-08T19:30:21.50
IV.FDMO.HHE. ML:2.8 0.0023200000000000004 0.92 AML other m 2018-09-08T19:30:21.90
IV.ATCC.EHN. ML:2.4 0.0008449999999999999 1.14 AML other m 2018-09-08T19:30:23.14
IV.ATCC.EHE. ML:2.4 0.0008965 1.52 AML other m 2018-09-08T19:30:24.87
IV.SMA1.EHE. ML:2.6 0.0009425 1.28 AML other m 2018-09-08T19:30:25.20
IV.RM33.HNN. ML:2.3 0.0005895000000000001 0.4 AML other m 2018-09-08T19:30:25.36
IV.RM33.EHN. ML:2.3 0.0005874999999999999 0.42 AML other m 2018-09-08T19:30:25.57
IV.RM33.EHE. ML:2.4 0.0006085 1.32 AML other m 2018-09-08T19:30:26.20
IV.RM33.HNE. ML:2.4 0.000633 1.32 AML other m 2018-09-08T19:30:26.20
IV.SNTG.HHE. ML:1.9 0.0001855 0.82 AML other m 2018-09-08T19:30:26.67
IV.SNTG.HNE. ML:2.1 0.000316 1.42 AML other m 2018-09-08T19:30:26.99
IV.FOSV.EHN. ML:2.2 0.000347 0.36 AML other m 2018-09-08T19:30:26.21
IV.FOSV.EHE. ML:2.1 0.0002945 0.28 AML other m 2018-09-08T19:30:26.53
IV.MURB.HHE. ML:2.8 0.0016 0.44 AML other m 2018-09-08T19:30:26.60
IV.MURB.HNE. ML:2.8 0.0015249999999999999 0.44 AML other m 2018-09-08T19:30:26.61
IV.SNTG.HHN. ML:2.1 0.0003179999999999999 0.14 AML other m 2018-09-08T19:30:26.69
IV.MTRA.HNE. ML:2.8 0.00138 0.54 AML other m 2018-09-08T19:30:26.93
IV.SMA1.EHN. ML:2.7 0.001155 1.58 AML other m 2018-09-08T19:30:26.01
IV.MTRA.EHN. ML:2.5 0.0008175 0.66 AML other m 2018-09-08T19:30:27.15
IV.MTRA.HNN. ML:2.6 0.000886 0.66 AML other m 2018-09-08T19:30:27.15
IV.MURB.HHN. ML:2.7 0.001118 0.36 AML other m 2018-09-08T19:30:27.22
IV.SNTG.HNN. ML:2.2 0.00037 0.62 AML other m 2018-09-08T19:30:27.70
IV.MTRA.EHE. ML:2.8 0.00141 0.92 AML other m 2018-09-08T19:30:27.93
IV.MURB.HNN. ML:2.6 0.0010409999999999998 1.18 AML other m 2018-09-08T19:30:27.39
IV.SRES.HHN. ML:2.2 0.000285 0.42 AML other m 2018-09-08T19:30:28.49
IV.CAMP.HHE. ML:2.0 0.000186 0.72 AML other m 2018-09-08T19:30:28.59
IV.ATFO.HHE. ML:2.2 0.000308 0.3 AML other m 2018-09-08T19:30:29.41
IV.MF5.EHE. ML:2.6 0.000746 0.22 AML other m 2018-09-08T19:30:29.23
IV.SRES.HHE. ML:2.1 0.00022300000000000003 0.5 AML other m 2018-09-08T19:30:29.53
IV.EL6.EHE. ML:2.8 0.0012200000000000002 0.16 AML other m 2018-09-08T19:30:29.46
IV.CAMP.HHN. ML:2.0 0.0001825 0.36 AML other m 2018-09-08T19:30:29.40
IV.ATFO.HHN. ML:2.2 0.00029000000000000006 0.32 AML other m 2018-09-08T19:30:29.61
IV.ATTE.HHN. ML:2.0 0.0002515 0.54 AML other m 2018-09-08T19:30:29.82
IV.EL6.EHN. ML:2.6 0.0007075 0.58 AML other m 2018-09-08T19:30:29.60
IV.TERO.HHE. ML:2.2 0.00023150000000000002 0.96 AML other m 2018-09-08T19:30:30.86
IV.MF5.EHN. ML:2.6 0.000732 0.4 AML other m 2018-09-08T19:30:31.29
IV.ATVO.HHE. ML:2.0 0.00016499999999999997 0.26 AML other m 2018-09-08T19:30:32.13
IV.ATVO.HHN. ML:2.1 0.0001875 0.98 AML other m 2018-09-08T19:30:32.47
IV.GIGS.HHE. ML:1.6 0.00005765 1.44 AML other m 2018-09-08T19:30:32.03
IV.SACS.HNE. ML:2.1 0.0002075 1.24 AML other m 2018-09-08T19:30:33.91
IV.SACS.HHE. ML:2.1 0.00020600000000000002 1.24 AML other m 2018-09-08T19:30:33.91
IV.TERO.HHN. ML:2.2 0.000262 0.46 AML other m 2018-09-08T19:30:33.30
IV.GIGS.HHN. ML:1.7 0.00008060000000000001 0.42 AML other m 2018-09-08T19:30:33.80
IV.SACS.HHN. ML:2.0 0.0001805 1.08 AML other m 2018-09-08T19:30:34.94
IV.SACS.HNN. ML:2.1 0.0002045 1.08 AML other m 2018-09-08T19:30:34.94
IV.ARVD.HHN. ML:2.0 0.000148 0.78 AML other m 2018-09-08T19:30:34.42
IV.ATMI.HHN. ML:2.7 0.0008089999999999999 0.46 AML other m 2018-09-08T19:30:34.54
IV.FRON.EHE. ML:2.0 0.000144 0.22 AML other m 2018-09-08T19:30:34.67
IV.ATTE.HHE. ML:1.9 0.0001815 0.32 AML other m 2018-09-08T19:30:34.61
IV.ARVD.HHE. ML:2.1 0.0001705 0.8 AML other m 2018-09-08T19:30:34.75
IV.ATPI.EHE. ML:2.0 0.00014150000000000002 1.6 AML other m 2018-09-08T19:30:35.99
IV.ATMI.HHE. ML:2.6 0.000644 0.66 AML other m 2018-09-08T19:30:35.34
IV.ATPI.EHN. ML:2.0 0.0001575 0.44 AML other m 2018-09-08T19:30:35.21
IV.LATE.HHE. ML:2.2 0.0002245 0.32 AML other m 2018-09-08T19:30:35.66
IV.LATE.HHN. ML:2.4 0.00038500000000000003 0.96 AML other m 2018-09-08T19:30:35.80
IV.CAFI.HHN. ML:2.0 0.00011525000000000001 1.52 AML other m 2018-09-08T19:30:35.92
IV.CAFI.HHE. ML:2.1 0.00015795000000000002 0.96 AML other m 2018-09-08T19:30:36.70
IV.FIAM.HHE. ML:2.1 0.0002575 0.42 AML other m 2018-09-08T19:30:36.96
IV.PIEI.HHN. ML:2.0 0.00011649999999999999 1.1 AML other m 2018-09-08T19:30:37.29
IV.FRON.EHN. ML:2.2 0.000192 1.02 AML other m 2018-09-08T19:30:37.37
IV.PIEI.HHE. ML:2.2 0.00018449999999999999 1.22 AML other m 2018-09-08T19:30:37.38
IV.CERT.HHE. ML:2.1 0.000141 0.5 AML other m 2018-09-08T19:30:38.30
TV.SF04.EHE. ML:2.2 0.0002035 1.3 AML other m 2018-09-08T19:30:38.30
TV.SF04.EHN. ML:2.3 0.0002635 0.28 AML other m 2018-09-08T19:30:39.04
IV.CERT.HHN. ML:2.0 0.00011599999999999999 1.02 AML other m 2018-09-08T19:30:39.21
IV.FIAM.HHN. ML:2.1 0.00023549999999999998 0.64 AML other m 2018-09-08T19:30:40.24
IV.VCEL.EHN. ML:2.4 0.000224 0.32 AML other m 2018-09-08T19:30:47.19
IV.VCEL.EHE. ML:2.4 0.000261 0.4 AML other m 2018-09-08T19:30:48.06
IV.T0110.HHE. ML:2.3 0.000201 0.44 AML other m 2018-09-08T19:30:50.33
IV.VVLD.HHE. ML:2.1 0.0000828 0.82 AML other m 2018-09-08T19:30:51.20
IV.T0110.HHN. ML:2.4 0.000241 0.5 AML other m 2018-09-08T19:30:52.15
IV.VVLD.HHN. ML:2.1 0.0000914 0.86 AML other m 2018-09-08T19:30:52.56
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