Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 23-09-2022 and time 18:20:58 (UTC) in region 5 km S Monteleone di Spoleto (PG)

A magnitude ML 1.0 earthquake occured in region: 5 km S Monteleone di Spoleto (PG), on

  • 23-09-2022 18:20:58 (UTC)
  • 23-09-2022 20:20:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6070, 12.9360 at 11 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.

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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
Monteleone di Spoleto PG 5 599 599
Leonessa RI 6 2435 3034
Polino TR 8 233 3267
Poggiodomo PG 12 117 3384
Rivodutri RI 12 1253 4637
Ferentillo TR 12 1913 6550
Poggio Bustone RI 12 2055 8605
Morro Reatino RI 12 373 8978
Arrone TR 14 2763 11741
Montefranco TR 14 1276 13017
Cascia PG 14 3217 16234
Labro RI 14 374 16608
Scheggino PG 15 461 17069
Cantalice RI 16 2755 19824
Posta RI 16 694 20518
Sant'Anatolia di Narco PG 16 564 21082
Colli sul Velino RI 17 533 21615
Cittareale RI 18 482 22097
Vallo di Nera PG 19 364 22461
Borbona RI 19 617 23078
Micigliano RI 20 127 23205

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km E of Terni (111501 inhabitants)
43 Km SE of Foligno (57155 inhabitants)
47 Km NW of L'Aquila (69753 inhabitants)
63 Km W of Teramo (54892 inhabitants)
70 Km N of Guidonia Montecelio (88673 inhabitants)
71 Km E of Viterbo (67173 inhabitants)
71 Km SE of Perugia (166134 inhabitants)
72 Km N of Tivoli (56533 inhabitants)
88 Km NE 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 1.0 2022-09-23
18:20:58		 42.6068 12.9362 11 2022-09-23
18:28:52		 Sala Sismica INGV-Roma 110062871
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-09-23 18:20:58 ± 0.05
Latitude 42.6068 ± 0.0027
Longitude 12.9362 ± 0.0037
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 110062871

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 380
Semi-minor axis of confidence ellipse (meter) 150
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 322
Circular confidence region, given by single value of horizontal uncertainty (meter) 380.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 143
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.39840
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 110062871
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-09-23 18:28:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2022-09-23T18:21:14.71 3.0 undecidable manual S -0.4 0
IV.CESI.HNN. 2022-09-23T18:21:13.39 0.6 undecidable manual S 357 44.2224 90 0.34 44
IV.MC2.EHZ. 2022-09-23T18:21:12.23 1.0 undecidable manual S 31 39.5271 90 0.42 22
IV.SMA1.EHZ. 2022-09-23T18:21:10.29 0.6 undecidable manual S 85 32.6451 90 0.32 46
IV.NRCA.HHZ. 2022-09-23T18:21:08.79 0.3 undecidable manual S 30 29.0487 90 -0.21 70
IV.CESX.HHZ. 2022-09-23T18:21:08.62 0.3 undecidable manual S 270 28.5492 90 -0.24 69
IV.RM33.EHZ. 2022-09-23T18:21:07.94 0.3 undecidable manual S 115 25.2525 90 -0.04 73
IV.CESI.HNN. 2022-09-23T18:21:06.73 0.3 undecidable manual P 357 44.2224 90 -0.3 67
IV.MC2.EHZ. 2022-09-23T18:21:06.42 0.3 undecidable manual P 31 39.5271 90 0.12 70
IV.SMA1.EHZ. 2022-09-23T18:21:05.36 0.1 undecidable manual P 85 32.6451 90 0.11 95
IV.FIAM.HHZ. 2022-09-23T18:21:04.31 3.0 undecidable manual P -2.22 0
IV.ARRO.EHZ. 2022-09-23T18:21:04.88 0.1 undecidable manual S 258 14.2746 91 -0.17 96
IV.NRCA.HHZ. 2022-09-23T18:21:04.62 0.3 undecidable manual P 30 29.0487 90 -0.06 72
IV.RM33.EHZ. 2022-09-23T18:21:04.03 0.6 positive manual P 115 25.2525 90 -0.06 48
IV.CESX.HHZ. 2022-09-23T18:21:04.67 0.1 undecidable manual P 270 28.5492 90 0.07 97
IV.LNSS.HHZ. 2022-09-23T18:21:03.59 0.1 undecidable manual S 93 8.4804 128 -0.05 100
IV.GAVE.EHZ. 2022-09-23T18:21:03.86 0.1 undecidable manual S 340 10.0788 119 -0.13 98
IV.ARRO.EHZ. 2022-09-23T18:21:02.50 0.1 negative manual P 258 14.2746 91 0.1 99
IV.LNSS.HHZ. 2022-09-23T18:21:01.73 0.1 undecidable manual P 93 8.4804 128 0.14 99
IV.GAVE.EHZ. 2022-09-23T18:21:01.97 0.1 negative manual P 340 10.0788 119 0.18 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHN. ML:1.4 0.00031 0.94 AML other m 2022-09-23T18:21:03.44
IV.GAVE.EHE. ML:1.2 0.000185 0.54 AML other m 2022-09-23T18:21:04.30
IV.GAVE.EHN. ML:1.3 0.000249 0.76 AML other m 2022-09-23T18:21:04.15
IV.LNSS.HHE. ML:1.4 0.000314 0.98 AML other m 2022-09-23T18:21:04.18
IV.ARRO.EHN. ML:1.3 0.00018099999999999998 0.12 AML other m 2022-09-23T18:21:05.30
IV.ARRO.EHE. ML:1.3 0.0001905 0.2 AML other m 2022-09-23T18:21:05.81
IV.RM33.EHN. ML:0.8 0.0000371 1.48 AML other m 2022-09-23T18:21:08.12
IV.RM33.EHE. ML:0.8 0.00003315 0.58 AML other m 2022-09-23T18:21:08.46
IV.NRCA.HHE. ML:1.3 0.0000931 0.14 AML other m 2022-09-23T18:21:09.13
IV.NRCA.HHN. ML:1.1 0.00005775 0.08 AML other m 2022-09-23T18:21:10.64
IV.SMA1.EHN. ML:0.9 0.00003395 0.72 AML other m 2022-09-23T18:21:11.95
IV.SMA1.EHE. ML:1.0 0.00004295 0.2 AML other m 2022-09-23T18:21:11.74
IV.FDMO.HHE. ML:0.8 0.000015122169999999999 0.1536 AML other m 2022-09-23T18:21:15.24
IV.FDMO.HHN. ML:0.6 0.000011661289999999999 0.2944 AML other m 2022-09-23T18:21:14.98
IV.CESX.HHE. ML:0.7 0.000023258385 1.1904 AML other m 2022-09-23T18:21:10.12
IV.CESX.HHN. ML:0.8 0.00002875301 0.3456 AML other m 2022-09-23T18:21:11.13
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