Earthquake with magnitude of ML 1.9 on date 17-10-2021 and time 06:28:02 (UTC) in region 5 km N Spoleto (PG)

A magnitude ML 1.9 earthquake occured in region: 5 km N Spoleto (PG), on

  • 17-10-2021 06:28:02 (UTC)
  • 17-10-2021 08:28:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7750, 12.7540 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.

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
Sant'Anatolia di Narco PG 8 564 41224
Castel Ritaldi PG 9 3278 44502
Vallo di Nera PG 9 364 44866
Scheggino PG 9 461 45327
Trevi PG 11 8469 53796
Cerreto di Spoleto PG 14 1075 54871
Montefalco PG 16 5679 60550
Giano dell'Umbria PG 16 3846 64396
Poggiodomo PG 16 117 64513
Ferentillo TR 17 1913 66426
Massa Martana PG 19 3770 70196
Sellano PG 19 1079 71275
Acquasparta TR 19 4778 76053
Montefranco TR 20 1276 77329

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km S of Foligno (57155 inhabitants)
25 Km NE of Terni (111501 inhabitants)
47 Km SE of Perugia (166134 inhabitants)
66 Km NE of Viterbo (67173 inhabitants)
71 Km NW of L'Aquila (69753 inhabitants)
79 Km W of Teramo (54892 inhabitants)
86 Km N of Guidonia Montecelio (88673 inhabitants)
90 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 1.9 2021-10-17
06:28:02
42.7752 12.7535 10 2022-03-30
13:04:12
Bollettino Sismico Italiano INGV 96845601
Reviewed
Rev100
ML 2.0 2021-10-17
06:28:02
42.7735 12.7558 10 2021-10-17
06:40:59
Sala Sismica INGV-Roma 96675031
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-17 06:28:02 ± 0.05
Latitude 42.7752 ± 0.0036
Longitude 12.7535 ± 0.0049
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 96845601

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 416
Semi-minor axis of confidence ellipse (meter) 260
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 228
Circular confidence region, given by single value of horizontal uncertainty (meter) 420.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 61
Number of associated phases, regardless of their use for origin computation 55
Number of defining phases 50
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.82288
Number of stations at which the event was observed 33
Number of stations from which data was used for origin computation 29
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 52
Type of magnitude ML
Reference to an origin 96845601
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-10-21 12:48:14

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 52
Type of magnitude ML
Reference to an origin 96675031
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-17 06:40:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2021-10-17T06:28:28.77 3.0 undecidable manual Pg 0
IV.TERO.HHZ. 2021-10-17T06:28:24.42 0.1 undecidable manual S 103 71.373 50 0.04 90
IV.EL6.EHZ. 2021-10-17T06:28:24.29 0.6 undecidable manual S 25 67.6767 50 0.9 35
IV.TOLF.HHZ. 2021-10-17T06:28:23.30 3.0 positive manual P 1.83 0
IV.GUMA.HHZ. 2021-10-17T06:28:21.43 3.0 undecidable manual S 56 56.9985 50 0.88 0
IV.SNTG.HHZ. 2021-10-17T06:28:20.84 0.1 undecidable manual S 16 55.4001 50 0.73 76
IV.SMA1.EHZ. 2021-10-17T06:28:19.30 0.1 undecidable manual S 108 50.1165 50 0.6 81
IV.CSP1.EHZ. 2021-10-17T06:28:19.01 0.1 undecidable manual S 46 50.8158 50 0.12 92
IV.RM33.EHZ. 2021-10-17T06:28:18.16 0.1 undecidable manual S 128 47.8188 50 0.06 93
IV.MMO1.EHZ. 2021-10-17T06:28:18.39 0.1 undecidable manual S 73 48.618 50 0.08 93
IV.ATCC.EHZ. 2021-10-17T06:28:17.93 0.1 undecidable manual S 349 46.4202 50 0.21 91
IV.BADI.EHZ. 2021-10-17T06:28:17.55 0.1 undecidable manual P 333 91.3419 50 -0.7 72
IV.ATMI.HHZ. 2021-10-17T06:28:17.70 3.0 undecidable manual S -2.73 0
IV.MNTT.EHZ. 2021-10-17T06:28:16.38 3.0 undecidable manual P 4.22 0
IV.MML1.EHZ. 2021-10-17T06:28:16.26 0.1 undecidable manual S 25 41.5251 50 -0.15 93
IV.MC2.EHZ. 2021-10-17T06:28:15.85 0.1 undecidable manual S 67 38.5281 50 0.24 91
IV.TERO.HHZ. 2021-10-17T06:28:15.10 0.1 undecidable manual P 103 71.373 50 -0.08 89
IV.FDMO.HHZ. 2021-10-17T06:28:15.54 0.1 undecidable manual S 43 39.7269 50 -0.39 88
IV.CING.HHZ. 2021-10-17T06:28:15.96 0.1 undecidable manual P 28 75.6687 50 0.13 87
IV.SACS.HHZ. 2021-10-17T06:28:15.02 0.1 undecidable manual P 277 69.1752 50 0.18 87
IV.EL6.EHZ. 2021-10-17T06:28:14.52 0.1 undecidable manual P 25 67.6767 50 -0.08 89
IV.MF5.EHZ. 2021-10-17T06:28:14.20 0.1 undecidable manual P 67 62.0934 50 0.46 84
IV.ASSB.HHZ. 2021-10-17T06:28:13.65 0.3 undecidable manual S 345 30.6471 50 0.13 71
IV.GUMA.HHZ. 2021-10-17T06:28:13.19 0.1 undecidable manual P 56 56.9985 50 0.22 89
IT.MTCL.HGZ. 2021-10-17T06:28:13.47 0.1 undecidable manual S 39 31.4463 50 -0.25 92
IV.LNSS.HHZ. 2021-10-17T06:28:13.14 0.1 undecidable manual S 129 30.2475 50 -0.25 92
IV.MURB.HHZ. 2021-10-17T06:28:13.02 0.1 undecidable manual P 341 57.1983 50 0.02 92
IV.NRCA.HHZ. 2021-10-17T06:28:13.18 0.3 undecidable manual S 77 30.0477 50 -0.18 70
IV.MGAB.HHZ. 2021-10-17T06:28:12.73 0.1 undecidable manual P 287 54.3012 50 0.18 90
IV.CESI.HHZ. 2021-10-17T06:28:12.63 0.1 undecidable manual S 26 28.2495 50 -0.25 93
IV.SNTG.HHZ. 2021-10-17T06:28:12.47 0.1 undecidable manual P 16 55.4001 50 -0.24 89
IV.MMO1.EHZ. 2021-10-17T06:28:11.51 0.1 undecidable manual P 73 48.618 50 -0.16 91
IV.CESX.HHZ. 2021-10-17T06:28:11.07 0.1 undecidable manual S 216 22.9548 113 -0.19 95
IV.CSP1.EHZ. 2021-10-17T06:28:11.96 0.1 positive manual P 46 50.8158 50 -0.04 93
IV.ATCC.EHZ. 2021-10-17T06:28:11.37 0.1 undecidable manual P 349 46.4202 50 0.04 94
IV.SMA1.EHZ. 2021-10-17T06:28:11.95 0.1 undecidable manual P 108 50.1165 50 0.06 93
IV.RM33.EHZ. 2021-10-17T06:28:11.42 0.1 undecidable manual P 128 47.8188 50 -0.13 92
IV.ARRO.EHZ. 2021-10-17T06:28:11.11 0.1 undecidable manual S 177 21.7671 114 0.23 94
IV.FDMO.HHZ. 2021-10-17T06:28:10.11 0.1 undecidable manual P 43 39.7269 50 -0.19 92
IV.MML1.EHZ. 2021-10-17T06:28:10.39 0.1 undecidable manual P 25 41.5251 50 -0.18 92
IV.MC2.EHZ. 2021-10-17T06:28:10.12 0.1 undecidable manual P 67 38.5281 50 0.01 96
IV.FEMA.HNE. 2021-10-17T06:28:09.08 0.1 undecidable manual P 49 31.746 50 0 97
IV.LNSS.HHZ. 2021-10-17T06:28:08.61 0.1 undecidable manual P 129 30.2475 50 -0.22 93
IV.NRCA.HHZ. 2021-10-17T06:28:08.59 0.1 positive manual P 77 30.0477 50 -0.22 93
IV.GAVE.EHZ. 2021-10-17T06:28:08.73 0.1 undecidable manual S 129 14.6742 124 0 100
IV.ASSB.HHZ. 2021-10-17T06:28:08.78 0.1 undecidable manual P 345 30.6471 50 -0.12 95
IT.GNU.HGE. 2021-10-17T06:28:08.89 0.1 undecidable manual S 282 15.2736 123 0 100
IV.MOMA.HHZ. 2021-10-17T06:28:08.78 0.1 undecidable manual S 282 15.2736 123 -0.12 98
IT.MTCL.HGZ. 2021-10-17T06:28:08.88 0.1 undecidable manual P 39 31.4463 50 -0.14 94
IV.CESI.HHZ. 2021-10-17T06:28:08.40 0.1 undecidable manual P 26 28.2495 50 -0.14 95
IV.ARRO.EHZ. 2021-10-17T06:28:07.39 0.1 undecidable manual P 177 21.7671 114 0.01 99
IV.CESX.HHZ. 2021-10-17T06:28:07.44 0.1 undecidable manual P 216 22.9548 113 -0.16 95
IV.MOMA.HHZ. 2021-10-17T06:28:06.37 0.1 undecidable manual P 282 15.2736 123 0.13 97
IV.GAVE.EHZ. 2021-10-17T06:28:06.21 0.1 undecidable manual P 129 14.6742 124 0.07 99
IT.GNU.HGE. 2021-10-17T06:28:06.63 0.1 undecidable manual P 282 15.2736 123 0.4 92
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.HNE. ML:2.3 0.00211 1.84 AML other m 2021-10-17T06:28:08.99
IV.GAVE.HNN. ML:1.8 0.000593 0.44 AML other m 2021-10-17T06:28:09.44
IV.MOMA.HNN. ML:2.1 0.0012349999999999998 0.22 AML other m 2021-10-17T06:28:09.37
IV.MOMA.HHN. ML:2.1 0.001155 0.22 AML other m 2021-10-17T06:28:09.37
IV.GAVE.EHE. ML:2.3 0.0021799999999999996 0.54 AML other m 2021-10-17T06:28:09.45
IV.MOMA.HHE. ML:2.5 0.003245 0.24 AML other m 2021-10-17T06:28:09.60
IV.MOMA.HNE. ML:2.5 0.003035 0.24 AML other m 2021-10-17T06:28:09.60
IV.GAVE.EHN. ML:2.2 0.0016200000000000001 0.2 AML other m 2021-10-17T06:28:09.44
IV.ARRO.EHE. ML:1.7 0.0003275 0.26 AML other m 2021-10-17T06:28:11.73
IV.ARRO.EHN. ML:1.5 0.000237 0.66 AML other m 2021-10-17T06:28:12.37
IV.CESX.HHE. ML:1.9 0.000504 0.26 AML other m 2021-10-17T06:28:12.63
IV.CESI.HHE. ML:1.9 0.00038 0.14 AML other m 2021-10-17T06:28:12.89
IV.CESI.HHN. ML:2.2 0.0009274999999999999 1.86 AML other m 2021-10-17T06:28:13.97
IV.LNSS.HHE. ML:2.2 0.0007070000000000001 0.2 AML other m 2021-10-17T06:28:13.30
IV.LNSS.HNE. ML:2.1 0.0006975 0.48 AML other m 2021-10-17T06:28:13.63
IV.NRCA.HHN. ML:2.0 0.000532 0.38 AML other m 2021-10-17T06:28:13.85
IV.ASSB.HHE. ML:1.8 0.00028849999999999997 1.44 AML other m 2021-10-17T06:28:13.04
IV.CESX.HHN. ML:1.9 0.00048699999999999997 1.54 AML other m 2021-10-17T06:28:13.13
IV.LNSS.HNN. ML:2.1 0.000694 0.24 AML other m 2021-10-17T06:28:13.91
IV.LNSS.HHN. ML:2.2 0.000763 0.24 AML other m 2021-10-17T06:28:13.92
IV.ASSB.HHN. ML:1.8 0.00033600000000000004 1.84 AML other m 2021-10-17T06:28:14.03
IV.NRCA.HHE. ML:2.2 0.0007795 0.18 AML other m 2021-10-17T06:28:14.51
IV.FDMO.HHE. ML:1.9 0.0002535 0.22 AML other m 2021-10-17T06:28:16.56
IV.MML1.EHE. ML:1.7 0.0001665 0.2 AML other m 2021-10-17T06:28:16.92
IV.MML1.EHN. ML:1.6 0.00013550000000000001 1.42 AML other m 2021-10-17T06:28:16.19
IV.FDMO.HHN. ML:1.8 0.0001945 0.1 AML other m 2021-10-17T06:28:16.92
IV.RM33.EHN. ML:1.7 0.00014800000000000002 0.42 AML other m 2021-10-17T06:28:19.05
IV.ATCC.EHE. ML:1.9 0.000223 0.16 AML other m 2021-10-17T06:28:19.21
IV.ATCC.EHN. ML:1.8 0.00020050000000000002 0.18 AML other m 2021-10-17T06:28:19.38
IV.RM33.EHE. ML:1.9 0.0002 1.58 AML other m 2021-10-17T06:28:20.02
IV.CSP1.EHN. ML:2.2 0.000422 1.12 AML other m 2021-10-17T06:28:20.28
IV.CSP1.EHE. ML:2.2 0.000374 0.98 AML other m 2021-10-17T06:28:20.88
IV.SMA1.EHN. ML:1.8 0.000187 0.22 AML other m 2021-10-17T06:28:21.12
IV.MGAB.HHN. ML:1.6 0.00010594999999999999 0.16 AML other m 2021-10-17T06:28:21.90
IV.SMA1.EHE. ML:2.0 0.000246 1.76 AML other m 2021-10-17T06:28:22.88
IV.MGAB.HHE. ML:1.6 0.0000951 0.56 AML other m 2021-10-17T06:28:22.43
IV.GUMA.HHE. ML:2.1 0.000249 0.48 AML other m 2021-10-17T06:28:22.78
IV.SNTG.HHN. ML:1.4 0.00005555 1.36 AML other m 2021-10-17T06:28:23.83
IV.MURB.HHE. ML:2.2 0.0003435 0.32 AML other m 2021-10-17T06:28:23.23
IV.SNTG.HHE. ML:1.5 0.0000726 0.96 AML other m 2021-10-17T06:28:23.36
IV.MURB.HHN. ML:2.1 0.0003035 0.46 AML other m 2021-10-17T06:28:23.89
IV.GUMA.HHN. ML:2.1 0.000259 0.82 AML other m 2021-10-17T06:28:24.53
IV.EL6.EHE. ML:2.0 0.0001565 0.42 AML other m 2021-10-17T06:28:25.55
IV.EL6.EHN. ML:1.9 0.00015099999999999998 0.46 AML other m 2021-10-17T06:28:26.34
IV.TERO.HHN. ML:1.6 0.0000627 1.06 AML other m 2021-10-17T06:28:27.77
IV.ATMI.HHN. ML:1.9 0.000114 0.28 AML other m 2021-10-17T06:28:28.48
IV.TERO.HHE. ML:1.8 0.0001013 1.18 AML other m 2021-10-17T06:28:28.01
IV.SACS.HHN. ML:1.3 0.000033849999999999996 1.16 AML other m 2021-10-17T06:28:28.92
IV.SACS.HHE. ML:1.5 0.00004775 0.42 AML other m 2021-10-17T06:28:31.44
IV.ATMI.HHE. ML:1.8 0.00009455 0.42 AML other m 2021-10-17T06:28:33.59
IV.RM33.HNE. ML:2.8 0.001805 0.52 AML other m 2021-10-17T06:28:39.72
IV.RM33.HNN. ML:2.7 0.001465 0.54 AML other m 2021-10-17T06:28:39.73
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