Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 20-06-2022 and time 08:43:01 (Italy) in region 7 km W Spoleto (PG)

A magnitude ML 1.4 earthquake occured in region: 7 km W Spoleto (PG), on

  • 20-06-2022 06:43:01 (UTC)
  • 20-06-2022 08:43:01 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7420, 12.6590 at 7 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 7 38218 38218
Castel Ritaldi PG 9 3278 41496
Acquasparta TR 11 4778 46274
Massa Martana PG 12 3770 50044
Giano dell'Umbria PG 12 3846 53890
Campello sul Clitunno PG 13 2442 56332
Scheggino PG 15 461 56793
Sant'Anatolia di Narco PG 15 564 57357
Trevi PG 17 8469 65826
San Gemini TR 17 5018 70844
Vallo di Nera PG 17 364 71208
Montefalco PG 17 5679 76887
Montecastrilli TR 17 5022 81909
Ferentillo TR 17 1913 83822
Montefranco TR 18 1276 85098
Arrone TR 20 2763 87861

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km N of Terni (111501 inhabitants)
24 Km S of Foligno (57155 inhabitants)
46 Km SE of Perugia (166134 inhabitants)
58 Km NE of Viterbo (67173 inhabitants)
75 Km NW of L'Aquila (69753 inhabitants)
83 Km N of Guidonia Montecelio (88673 inhabitants)
86 Km W of Teramo (54892 inhabitants)
87 Km N of Tivoli (56533 inhabitants)
95 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 1.4 2022-06-20
06:43:01		 42.7422 12.659 7 2023-01-31
19:03:55		 Bollettino Sismico Italiano INGV 111580511
Reviewed
Rev100 		ML 1.4 2022-06-20
06:43:01		 42.747 12.6537 6 2022-06-20
06:47:55		 Sala Sismica INGV-Roma 106281721
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-06-20 06:43:01 ± 0.06
Latitude 42.7422 ± 0.0036
Longitude 12.6590 ± 0.0061
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 111580511

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 438
Semi-minor axis of confidence ellipse (meter) 292
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 243
Circular confidence region, given by single value of horizontal uncertainty (meter) 440.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 91
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 25
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) 0.08993
Epicentral distance of station farthest from the epicenter (degree) 0.53060
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 111580511
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-11-08 11:25:21

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 106281721
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-06-20 06:47:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2022-06-20T06:43:21.96 0.6 undecidable manual S 49 58.8966 50 0.97 34
IV.MC2.EHZ. 2022-06-20T06:43:18.36 0.6 undecidable manual S 66 47.0196 50 0.55 42
IV.RM33.EHZ. 2022-06-20T06:43:18.93 0.6 undecidable manual S 120 52.2033 50 -0.26 45
IV.FDMO.HHZ. 2022-06-20T06:43:18.18 1.0 undecidable manual S 47 47.7189 50 0.18 23
IV.NRCA.HHZ. 2022-06-20T06:43:15.34 0.3 undecidable manual S 75 38.4282 50 -0.18 70
IV.ASSB.HHZ. 2022-06-20T06:43:13.73 0.3 undecidable manual S 360 33.3444 102 -0.07 72
IV.LNSS.HHZ. 2022-06-20T06:43:13.82 0.6 undecidable manual S 116 34.743 102 -0.45 44
IV.CSP1.EHZ. 2022-06-20T06:43:12.97 0.6 undecidable manual P 49 58.8966 50 0.02 46
IV.FDMO.HHZ. 2022-06-20T06:43:11.26 0.1 undecidable manual P 47 47.7189 50 0.04 95
IV.MGAB.HHZ. 2022-06-20T06:43:11.20 0.3 undecidable manual P 293 48.3183 50 -0.12 70
IV.MC2.EHZ. 2022-06-20T06:43:11.02 0.3 undecidable manual P 66 47.0196 50 -0.09 70
IV.RM33.EHZ. 2022-06-20T06:43:11.92 0.3 undecidable manual P 120 52.2033 50 0.01 71
IV.GAVE.EHZ. 2022-06-20T06:43:09.31 0.6 undecidable manual S 106 19.9689 110 -0.02 50
IV.LNSS.HHZ. 2022-06-20T06:43:09.11 0.6 undecidable manual P 116 34.743 102 0.04 48
IV.ARRO.EHZ. 2022-06-20T06:43:09.86 0.6 undecidable manual S 154 20.0688 110 0.49 45
IV.NRCA.HHZ. 2022-06-20T06:43:09.41 0.1 undecidable manual P 75 38.4282 50 -0.38 90
IV.ASSB.HHZ. 2022-06-20T06:43:08.61 0.3 undecidable manual P 360 33.3444 102 -0.19 71
IV.CESX.HHZ. 2022-06-20T06:43:08.12 0.3 undecidable manual S 202 15.9729 115 0.07 74
IT.GNU.HGE. 2022-06-20T06:43:06.24 0.6 undecidable manual S 313 9.9789 126 0 51
IV.GAVE.EHZ. 2022-06-20T06:43:06.23 0.1 negative manual P 106 19.9689 110 0.01 100
IV.MOMA.HHZ. 2022-06-20T06:43:06.20 0.6 undecidable manual S 313 9.9789 126 -0.05 50
IV.ARRO.EHZ. 2022-06-20T06:43:06.35 0.1 undecidable manual P 154 20.0688 110 0.11 98
IV.CESX.HHZ. 2022-06-20T06:43:05.35 0.1 undecidable manual P 202 15.9729 115 -0.12 98
IV.MOMA.HHZ. 2022-06-20T06:43:04.52 0.1 undecidable manual P 313 9.9789 126 0.09 100
IT.GNU.HGE. 2022-06-20T06:43:04.52 0.1 undecidable manual P 313 9.9789 126 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOMA.HHN. ML:1.7 0.0008295 0.78 AML other m 2022-06-20T06:43:06.51
IV.MOMA.HNN. ML:1.7 0.0007765 0.98 AML other m 2022-06-20T06:43:06.74
IV.MOMA.HHE. ML:1.9 0.0011385 1.84 AML other m 2022-06-20T06:43:07.07
IV.MOMA.HNE. ML:1.8 0.001062 0.16 AML other m 2022-06-20T06:43:07.08
IV.CESX.HHE. ML:1.6 0.0004255 0.34 AML other m 2022-06-20T06:43:08.99
IV.GAVE.EHN. ML:1.3 0.000164 0.28 AML other m 2022-06-20T06:43:10.20
IV.CESX.HHN. ML:1.6 0.0004235 0.42 AML other m 2022-06-20T06:43:10.62
IV.ARRO.EHN. ML:1.3 0.0001505 0.62 AML other m 2022-06-20T06:43:11.77
IV.ARRO.EHE. ML:1.3 0.00016399999999999997 0.86 AML other m 2022-06-20T06:43:11.16
IV.GAVE.EHE. ML:1.3 0.00016849999999999998 0.28 AML other m 2022-06-20T06:43:11.80
IV.LNSS.HHE. ML:1.3 0.00009090000000000001 0.82 AML other m 2022-06-20T06:43:15.55
IV.LNSS.HHN. ML:1.5 0.000134 0.36 AML other m 2022-06-20T06:43:16.89
IV.NRCA.HHE. ML:1.2 0.0000664 0.14 AML other m 2022-06-20T06:43:17.83
IV.NRCA.HHN. ML:1.3 0.00006795 0.38 AML other m 2022-06-20T06:43:19.29
IV.FDMO.HHN. ML:0.8 0.000021150000000000002 1.18 AML other m 2022-06-20T06:43:20.67
IV.FDMO.HHE. ML:0.8 0.000019299999999999998 1 AML other m 2022-06-20T06:43:20.83
IV.RM33.EHE. ML:1.3 0.000042749999999999996 1.52 AML other m 2022-06-20T06:43:21.78
IV.RM33.EHN. ML:1.3 0.00004795 1.62 AML other m 2022-06-20T06:43:22.97
IV.ATPI.EHE. ML:1.3 0.00002535 0.36 AML other m 2022-06-20T06:43:35.45
IV.ATPI.EHN. ML:1.5 0.0000385 0.08 AML other m 2022-06-20T06:43:35.62
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