Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 26-09-2022 and time 11:56:12 (UTC) in region 7 km E Ferentillo (TR)

A magnitude ML 1.1 earthquake occured in region: 7 km E Ferentillo (TR), on

  • 26-09-2022 11:56:12 (UTC)
  • 26-09-2022 13:56:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6480, 12.8670 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
Ferentillo TR 7 1913 1913
Monteleone di Spoleto PG 7 599 2512
Polino TR 7 233 2745
Scheggino PG 8 461 3206
Poggiodomo PG 9 117 3323
Sant'Anatolia di Narco PG 10 564 3887
Montefranco TR 10 1276 5163
Arrone TR 11 2763 7926
Leonessa RI 12 2435 10361
Vallo di Nera PG 14 364 10725
Morro Reatino RI 14 373 11098
Spoleto PG 14 38218 49316
Cascia PG 14 3217 52533
Labro RI 15 374 52907
Rivodutri RI 15 1253 54160
Poggio Bustone RI 16 2055 56215
Colli sul Velino RI 18 533 56748
Cerreto di Spoleto PG 20 1075 57823

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km E of Terni (111501 inhabitants)
37 Km SE of Foligno (57155 inhabitants)
55 Km NW of L'Aquila (69753 inhabitants)
64 Km SE of Perugia (166134 inhabitants)
67 Km E of Viterbo (67173 inhabitants)
69 Km W of Teramo (54892 inhabitants)
73 Km N of Guidonia Montecelio (88673 inhabitants)
76 Km N of Tivoli (56533 inhabitants)
90 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 1.1 2022-09-26
11:56:12		 42.6482 12.867 11 2022-09-26
12:06:30		 Sala Sismica INGV-Roma 110176601
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-09-26 11:56:12 ± 0.09
Latitude 42.6482 ± 0.0063
Longitude 12.8670 ± 0.0061
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 110176601

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 729
Semi-minor axis of confidence ellipse (meter) 540
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 182
Circular confidence region, given by single value of horizontal uncertainty (meter) 730.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 118
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 14
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) 0.42268
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 110176601
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-09-26 12:06:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SACS.HHZ. 2022-09-26T11:56:40.08 3.0 undecidable manual S 0.07 0
IV.LPEL.HHZ. 2022-09-26T11:56:35.53 3.0 negative manual P 0.11 0
IV.ASSB.HHZ. 2022-09-26T11:56:27.80 0.6 undecidable manual S 339 46.9197 50 0.2 64
IV.CESI.HHZ. 2022-09-26T11:56:25.77 0.3 undecidable manual S 4 39.7269 50 0.1 99
IV.MC2.EHZ. 2022-09-26T11:56:25.70 0.6 undecidable manual S 42 39.2274 50 0.15 65
IV.NRCA.HHZ. 2022-09-26T11:56:22.29 0.6 undecidable manual S 44 28.749 50 -0.47 62
IV.ASSB.HHZ. 2022-09-26T11:56:21.15 0.6 positive manual P 339 46.9197 50 -0.08 65
IV.CESI.HHZ. 2022-09-26T11:56:20.05 0.3 positive manual P 4 39.7269 50 -0.06 100
IV.MC2.EHZ. 2022-09-26T11:56:20.13 0.6 negative manual P 42 39.2274 50 0.09 66
IV.LNSS.HHZ. 2022-09-26T11:56:18.86 0.6 undecidable manual S 109 14.9739 125 -0.03 70
IV.NRCA.HHZ. 2022-09-26T11:56:18.29 0.3 negative manual P 44 28.749 50 -0.14 100
IV.ARRO.EHZ. 2022-09-26T11:56:17.60 0.6 undecidable manual S 227 11.2776 133 -0.28 67
IV.LNSS.HHZ. 2022-09-26T11:56:16.45 0.3 positive manual P 109 14.9739 125 0.26 100
IV.GAVE.EHZ. 2022-09-26T11:56:16.49 0.6 undecidable manual S 24 5.3946 153 -0.15 69
IV.GAVE.EHZ. 2022-09-26T11:56:15.05 0.6 undecidable manual P 24 5.3946 153 0.16 69
IV.ARRO.EHZ. 2022-09-26T11:56:15.94 1.0 undecidable manual P 227 11.2776 133 0.33 33
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARRO.EHN. ML:1.1 0.000132 0.68 AML other m 2022-09-26T11:56:18.48
IV.ARRO.EHE. ML:1.0 0.00011859999999999998 0.1 AML other m 2022-09-26T11:56:18.34
IV.LNSS.HHN. ML:1.0 0.0000894 1.14 AML other m 2022-09-26T11:56:19.57
IV.LNSS.HHE. ML:1.0 0.00010550000000000002 1.06 AML other m 2022-09-26T11:56:20.60
IV.NRCA.HHE. ML:1.1 0.0000635 0.16 AML other m 2022-09-26T11:56:22.96
IV.NRCA.HHN. ML:1.0 0.0000562 0.64 AML other m 2022-09-26T11:56:23.59
IV.LPEL.HHE. ML:1.9 0.0000519 0.44 AML other m 2022-09-26T11:57:11.75
IV.LPEL.HHN. ML:2.0 0.00005835 0.44 AML other m 2022-09-26T11:57:14.50
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