Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 18-09-2022 and time 02:53:27 (Italy) in region 1 km SE Sant'Anatolia di Narco (PG)

A magnitude ML 1.3 earthquake occured in region: 1 km SE Sant'Anatolia di Narco (PG), on

  • 18-09-2022 00:53:27 (UTC)
  • 18-09-2022 02:53:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7290, 12.8400 at 8 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
Sant'Anatolia di Narco PG 1 564 564
Scheggino PG 2 461 1025
Vallo di Nera PG 5 364 1389
Poggiodomo PG 8 117 1506
Spoleto PG 8 38218 39724
Campello sul Clitunno PG 11 2442 42166
Cerreto di Spoleto PG 12 1075 43241
Monteleone di Spoleto PG 13 599 43840
Ferentillo TR 13 1913 45753
Cascia PG 14 3217 48970
Montefranco TR 16 1276 50246
Polino TR 16 233 50479
Arrone TR 17 2763 53242
Castel Ritaldi PG 17 3278 56520
Trevi PG 18 8469 64989
Sellano PG 19 1079 66068

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km NE of Terni (111501 inhabitants)
28 Km SE of Foligno (57155 inhabitants)
56 Km SE of Perugia (166134 inhabitants)
62 Km NW of L'Aquila (69753 inhabitants)
69 Km NE of Viterbo (67173 inhabitants)
71 Km W of Teramo (54892 inhabitants)
82 Km N of Guidonia Montecelio (88673 inhabitants)
85 Km N of Tivoli (56533 inhabitants)
97 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 1.3 2022-09-18
00:53:27		 42.7292 12.8402 8 2022-09-18
01:00:12		 Sala Sismica INGV-Roma 109844371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-09-18 00:53:27 ± 0.06
Latitude 42.7292 ± 0.0027
Longitude 12.8402 ± 0.0037
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 109844371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 302
Semi-minor axis of confidence ellipse (meter) 229
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 215
Circular confidence region, given by single value of horizontal uncertainty (meter) 300.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 160
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.44966
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:1.3

Field Value
Value 1.3
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 109844371
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-09-18 01:00:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2022-09-18T00:53:44.34 0.3 undecidable manual S 36 49.9167 50 0.3 68
IV.MMO1.EHZ. 2022-09-18T00:53:42.28 0.3 undecidable manual S 64 43.8228 50 -0.14 71
IV.FDMO.HHZ. 2022-09-18T00:53:41.27 0.3 undecidable manual S 30 39.5271 50 0 73
IV.MC2.EHZ. 2022-09-18T00:53:40.17 0.3 undecidable manual S 54 34.8429 50 0.16 71
IV.CESI.HHZ. 2022-09-18T00:53:38.80 0.1 undecidable manual S 10 31.0467 105 0 99
IV.CSP1.EHZ. 2022-09-18T00:53:37.09 0.1 undecidable manual P 36 49.9167 50 -0.03 95
IV.MMO1.EHZ. 2022-09-18T00:53:36.06 0.1 undecidable manual P 64 43.8228 50 -0.12 95
IT.GNU.HGN. 2022-09-18T00:53:36.41 0.1 undecidable manual S 291 23.4543 110 0.1 98
IV.NRCA.HHZ. 2022-09-18T00:53:36.90 0.1 undecidable manual S 62 25.1526 108 0.06 99
IV.FDMO.HHZ. 2022-09-18T00:53:35.24 0.1 undecidable manual P 30 39.5271 50 -0.27 92
IV.LNSS.HHZ. 2022-09-18T00:53:35.70 0.1 undecidable manual S 131 21.4674 111 0.04 100
IV.MC2.EHZ. 2022-09-18T00:53:34.96 0.3 undecidable manual P 54 34.8429 50 0.17 71
IT.MTCL.HGE. 2022-09-18T00:53:34.14 0.1 undecidable manual P 24 32.0457 105 -0.16 96
IV.RM33.EHZ. 2022-09-18T00:53:34.97 3.0 undecidable manual P -0.03 0
IV.CESI.HHZ. 2022-09-18T00:53:33.95 0.1 undecidable manual P 10 31.0467 105 -0.14 96
IV.NRCA.HHZ. 2022-09-18T00:53:33.11 0.1 undecidable manual P 62 25.1526 108 0.15 97
IV.CESX.HHZ. 2022-09-18T00:53:33.60 3.0 positive manual P 0.14 0
IV.LNSS.HHZ. 2022-09-18T00:53:32.21 0.1 undecidable manual P 131 21.4674 111 -0.06 100
IT.GNU.HGN. 2022-09-18T00:53:32.69 0.1 undecidable manual P 291 23.4543 110 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHE. ML:1.3 0.000142 0.14 AML other m 2022-09-18T00:53:36.01
IV.LNSS.HHN. ML:1.3 0.0001445 1.56 AML other m 2022-09-18T00:53:36.91
IV.NRCA.HHN. ML:1.2 0.0000993 0.62 AML other m 2022-09-18T00:53:37.28
IV.NRCA.HHE. ML:1.2 0.00009325 1.3 AML other m 2022-09-18T00:53:38.29
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