Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 07-09-2022 and time 23:55:36 (UTC) in region 3 km S Cascia (PG)

A magnitude ML 0.9 earthquake occured in region: 3 km S Cascia (PG), on

  • 07-09-2022 23:55:36 (UTC)
  • 08-09-2022 01:55:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6920, 13.0090 at 10 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
Cascia PG 3 3217 3217
Monteleone di Spoleto PG 6 599 3816
Poggiodomo PG 6 117 3933
Norcia PG 13 4957 8890
Scheggino PG 15 461 9351
Sant'Anatolia di Narco PG 15 564 9915
Vallo di Nera PG 15 364 10279
Leonessa RI 15 2435 12714
Cittareale RI 15 482 13196
Cerreto di Spoleto PG 16 1075 14271
Polino TR 18 233 14504
Ferentillo TR 20 1913 16417
Accumoli RI 20 667 17084
Posta RI 20 694 17778

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km E of Terni (111501 inhabitants)
39 Km SE of Foligno (57155 inhabitants)
50 Km NW of L'Aquila (69753 inhabitants)
57 Km W of Teramo (54892 inhabitants)
68 Km SE of Perugia (166134 inhabitants)
80 Km E of Viterbo (67173 inhabitants)
80 Km N of Guidonia Montecelio (88673 inhabitants)
83 Km N of Tivoli (56533 inhabitants)
95 Km W of Montesilvano (53738 inhabitants)
99 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 0.9 2022-09-07
23:55:36		 42.6922 13.0092 10 2022-09-07
23:59:21		 Sala Sismica INGV-Roma 109444161
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-09-07 23:55:36 ± 0.04
Latitude 42.6922 ± 0.0027
Longitude 13.0092 ± 0.0049
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 109444161

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 336
Semi-minor axis of confidence ellipse (meter) 256
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 273
Circular confidence region, given by single value of horizontal uncertainty (meter) 340.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 92
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.08454
Epicentral distance of station farthest from the epicenter (degree) 0.32196
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 109444161
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-09-07 23:59:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MMO1.EHZ. 2022-09-07T23:55:48.30 0.3 undecidable manual S 48 34.6431 50 0.1 71
IV.MC2.EHZ. 2022-09-07T23:55:46.54 0.3 undecidable manual S 31 28.3494 50 0 73
IV.RM33.EHZ. 2022-09-07T23:55:45.91 0.3 undecidable manual S 140 26.3514 50 -0.08 72
IV.ARRO.EHZ. 2022-09-07T23:55:44.87 0.3 undecidable manual S 238 23.4543 113 -0.28 69
IV.MMO1.EHZ. 2022-09-07T23:55:43.13 0.3 undecidable manual P 48 34.6431 50 -0.03 72
IV.NRCA.HHZ. 2022-09-07T23:55:43.16 0.3 undecidable manual S 29 17.871 119 -0.25 70
IV.CESI.HHZ. 2022-09-07T23:55:43.34 0.3 undecidable manual P 346 35.742 50 0.01 72
IV.MC2.EHZ. 2022-09-07T23:55:42.24 0.3 undecidable manual P 31 28.3494 50 0.04 72
IV.ARRO.EHZ. 2022-09-07T23:55:41.40 1.0 positive manual P 238 23.4543 113 0 24
IV.GAVE.EHZ. 2022-09-07T23:55:41.08 0.1 undecidable manual S 270 9.3795 137 0.02 100
IV.RM33.EHZ. 2022-09-07T23:55:41.85 0.3 undecidable manual P 140 26.3514 50 -0.04 73
IV.LNSS.HHZ. 2022-09-07T23:55:41.27 0.1 undecidable manual S 166 10.1787 135 0.01 100
IV.NRCA.HHZ. 2022-09-07T23:55:40.41 0.1 undecidable manual P 29 17.871 119 0.01 99
IV.GAVE.EHZ. 2022-09-07T23:55:39.27 0.1 positive manual P 270 9.3795 137 0.23 96
IV.LNSS.HHZ. 2022-09-07T23:55:39.43 0.6 negative manual P 166 10.1787 135 0.27 47
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.EHE. ML:1.2 0.00019250000000000002 1.14 AML other m 2022-09-07T23:55:41.78
IV.GAVE.EHN. ML:1.2 0.00021799999999999999 0.26 AML other m 2022-09-07T23:55:41.34
IV.LNSS.HHN. ML:0.7 0.00006675000000000001 0.42 AML other m 2022-09-07T23:55:41.36
IV.LNSS.HHE. ML:0.9 0.0000953 0.14 AML other m 2022-09-07T23:55:41.42
IV.NRCA.HHN. ML:0.5 0.000026500000000000004 0.46 AML other m 2022-09-07T23:55:43.22
IV.NRCA.HHE. ML:0.7 0.00003755 0.6 AML other m 2022-09-07T23:55:43.92
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