Earthquake with magnitude of ML 1.3 on date 21-07-2022 and time 10:22:01 (Italy) in region 5 km W Spoleto (PG)

A magnitude ML 1.3 earthquake occured in region: 5 km W Spoleto (PG), on

  • 21-07-2022 08:22:01 (UTC)
  • 21-07-2022 10:22:01 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7560, 12.6790 at 20 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Castel Ritaldi PG 8 3278 41496
Campello sul Clitunno PG 11 2442 43938
Giano dell'Umbria PG 12 3846 47784
Massa Martana PG 13 3770 51554
Acquasparta TR 13 4778 56332
Sant'Anatolia di Narco PG 13 564 56896
Scheggino PG 13 461 57357
Trevi PG 15 8469 65826
Vallo di Nera PG 15 364 66190
Montefalco PG 16 5679 71869
Ferentillo TR 18 1913 73782
Montefranco TR 19 1276 75058
San Gemini TR 19 5018 80076
Montecastrilli TR 19 5022 85098
Gualdo Cattaneo PG 20 6155 91253

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km N of Terni (111501 inhabitants)
22 Km S of Foligno (57155 inhabitants)
46 Km SE of Perugia (166134 inhabitants)
60 Km NE of Viterbo (67173 inhabitants)
74 Km NW of L'Aquila (69753 inhabitants)
84 Km N of Guidonia Montecelio (88673 inhabitants)
85 Km W of Teramo (54892 inhabitants)
89 Km N of Tivoli (56533 inhabitants)
97 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
Reviewed
Rev100
ML 1.3 2022-07-21
08:22:01
42.7558 12.6787 20 2022-07-21
08:38:19
Sala Sismica INGV-Roma 107513231
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-07-21 08:22:01 ± 0.23
Latitude 42.7558 ± 0.0072
Longitude 12.6787 ± 0.0110
Depth (km) 20 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 107513231

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 852
Semi-minor axis of confidence ellipse (meter) 487
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 284
Circular confidence region, given by single value of horizontal uncertainty (meter) 850.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.51081
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.4
Num. used stations 16
Type of magnitude ML
Reference to an origin 107513231
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-07-21 08:38:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NOCI.HHZ. 2022-07-21T08:23:55.55 3.0 undecidable manual Sg 14.85 0
GU.MGRO.HHZ. 2022-07-21T08:23:40.86 3.0 undecidable manual Sn -0.64 0
IV.CROCE.HHZ. 2022-07-21T08:23:25.05 3.0 undecidable manual Pn -3.3 0
IX.PGN3.HHZ.02 2022-07-21T08:23:25.39 3.0 undecidable manual Sn -0.11 0
IV.SGTA.HHZ. 2022-07-21T08:23:24.93 3.0 undecidable manual Sg 14.63 0
IV.CAR1.HHZ. 2022-07-21T08:23:17.38 3.0 undecidable manual Pg 12.35 0
GU.GRAM.HHZ. 2022-07-21T08:23:14.49 3.0 undecidable manual Sg 2.68 0
GU.CIRO.HHZ. 2022-07-21T08:23:13.31 3.0 undecidable manual Pn 4.05 0
IX.RSF3.HHZ.02 2022-07-21T08:23:10.36 3.0 undecidable manual Sn -0.23 0
IV.BAG8.EHZ. 2022-07-21T08:23:03.21 3.0 undecidable manual Pg 10.58 0
IV.NOCI.HHZ. 2022-07-21T08:22:56.88 3.0 negative manual Pn -0.05 0
IV.PTCC.HHZ. 2022-07-21T08:22:53.41 3.0 negative manual Pn -2.02 0
IX.PGN3.HHZ.02 2022-07-21T08:22:52.48 3.0 undecidable manual Pg 4.09 0
GU.MGRO.HNZ. 2022-07-21T08:22:52.35 3.0 negative manual Pn -5.03 0
IV.MRVN.HHZ. 2022-07-21T08:22:51.19 3.0 undecidable manual Pn 3.86 0
IV.CTI.HHZ. 2022-07-21T08:22:50.78 3.0 undecidable manual Pn -0.61 0
ST.PANI.EHZ. 2022-07-21T08:22:49.26 3.0 undecidable manual Pn -2.97 0
IV.MCRV.HHZ. 2022-07-21T08:22:41.15 3.0 undecidable manual Pn -0.62 0
GU.GSCL.HHZ. 2022-07-21T08:22:36.30 3.0 undecidable manual Pg 0.68 0
IV.NRCA.HHZ. 2022-07-21T08:22:14.08 0.1 undecidable manual S 76 36.5412 109 0.13 99
IV.ASSB.HHZ. 2022-07-21T08:22:12.28 0.1 undecidable manual S 357 31.8459 113 -0.51 92
IV.SSFR.HHZ. 2022-07-21T08:22:12.79 3.0 negative manual P -1.52 0
IV.CSP1.EHZ. 2022-07-21T08:22:11.73 1.0 positive manual P 49 56.6988 101 0.1 24
IV.MML1.EHZ. 2022-07-21T08:22:10.20 1.0 negative manual P 31 46.3203 105 0.14 24
IV.FDMO.HHZ. 2022-07-21T08:22:10.19 1.0 positive manual P 47 45.5211 105 0.24 23
IV.MC2.EHZ. 2022-07-21T08:22:10.27 1.0 undecidable manual P 67 44.9217 105 0.4 23
IV.CESX.HHZ. 2022-07-21T08:22:09.41 0.1 undecidable manual S 205 17.9709 131 -0.21 99
IV.GAVE.EHZ. 2022-07-21T08:22:09.74 0.1 undecidable manual S 112 18.9699 129 -0.08 100
IV.NRCA.HHZ. 2022-07-21T08:22:08.87 0.1 negative manual P 76 36.5412 109 0.25 96
IV.ASSB.HHZ. 2022-07-21T08:22:08.07 0.3 undecidable manual P 357 31.8459 113 0.12 73
IV.CESI.HHZ. 2022-07-21T08:22:08.29 0.3 negative manual P 34 33.1446 112 0.15 73
IV.LNSS.HHE. 2022-07-21T08:22:07.68 0.1 undecidable manual P 120 34.0437 111 -0.58 86
IV.CESX.HHZ. 2022-07-21T08:22:06.31 0.3 positive manual P 205 17.9709 131 0.19 74
IV.GAVE.EHZ. 2022-07-21T08:22:06.34 0.6 positive manual P 112 18.9699 129 0.11 51
IT.GNU.HGE. 2022-07-21T08:22:05.62 0.1 undecidable manual P 301 10.2786 148 0.27 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESX.HHE. ML:1.2 0.0000853 0.2 AML other m 2022-07-21T08:22:09.65
IV.CESX.HHN. ML:1.2 0.00009425 0.12 AML other m 2022-07-21T08:22:09.65
IV.GAVE.EHE. ML:1.4 0.000158 0.36 AML other m 2022-07-21T08:22:10.16
IV.GAVE.EHN. ML:1.4 0.000154 0.36 AML other m 2022-07-21T08:22:10.24
IV.ASSB.HHN. ML:1.0 0.00003375 0.24 AML other m 2022-07-21T08:22:13.43
IV.ASSB.HHE. ML:1.0 0.000041099999999999996 0.44 AML other m 2022-07-21T08:22:13.54
IV.CESI.HHE. ML:0.8 0.000025750000000000002 0.54 AML other m 2022-07-21T08:22:13.83
IV.CESI.HHN. ML:0.9 0.00003105 0.58 AML other m 2022-07-21T08:22:14.48
IV.NRCA.HHE. ML:1.4 0.00008285000000000001 0.48 AML other m 2022-07-21T08:22:14.18
IV.NRCA.HHN. ML:1.5 0.0001105 0.12 AML other m 2022-07-21T08:22:14.58
IV.FDMO.HHE. ML:0.7 0.000016 1.3 AML other m 2022-07-21T08:22:16.67
IV.FDMO.HHN. ML:0.7 0.0000152 1.86 AML other m 2022-07-21T08:22:17.98
IV.SSFR.HHE. ML:2.0 0.000128 0.28 AML other m 2022-07-21T08:22:23.17
IV.SSFR.HNN. ML:2.5 0.00047999999999999996 0.64 AML other m 2022-07-21T08:22:24.30
IV.SSFR.HNE. ML:2.6 0.0005725 0.24 AML other m 2022-07-21T08:22:24.26
IV.SSFR.HHN. ML:1.9 0.000125 1.68 AML other m 2022-07-21T08:22:43.06
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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