Earthquake with magnitude of ML 0.9 on date 26-09-2022 and time 22:46:43 (Italy) in region 1 km NE Norcia (PG)

A magnitude ML 0.9 earthquake occured in region: 1 km NE Norcia (PG), on

  • 26-09-2022 20:46:43 (UTC)
  • 26-09-2022 22:46:43 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8030, 13.1040 at 7 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
Norcia PG 1 4957 4957
Preci PG 10 724 5681
Castelsantangelo sul Nera MC 11 281 5962
Cascia PG 12 3217 9179
Visso MC 14 1107 10286
Cerreto di Spoleto PG 15 1075 11361
Ussita MC 16 444 11805
Arquata del Tronto AP 16 1178 12983
Accumoli RI 17 667 13650
Poggiodomo PG 17 117 13767
Sellano PG 17 1079 14846
Montegallo AP 19 523 15369

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km E of Foligno (57155 inhabitants)
46 Km NE of Terni (111501 inhabitants)
52 Km W of Teramo (54892 inhabitants)
56 Km NW of L'Aquila (69753 inhabitants)
67 Km SE of Perugia (166134 inhabitants)
91 Km W of Montesilvano (53738 inhabitants)
92 Km E of Viterbo (67173 inhabitants)
94 Km NE of Guidonia Montecelio (88673 inhabitants)
97 Km SW of Ancona (100861 inhabitants)
97 Km N of Tivoli (56533 inhabitants)
98 Km W of Pescara (121014 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 2022-09-26
20:46:43
42.8032 13.1037 7 2022-09-26
21:03:39
Sala Sismica INGV-Roma 110191581
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-09-26 20:46:43 ± 0.08
Latitude 42.8032 ± 0.0027
Longitude 13.1037 ± 0.0061
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 110191581

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 407
Semi-minor axis of confidence ellipse (meter) 322
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 251
Circular confidence region, given by single value of horizontal uncertainty (meter) 410.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 155
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.18976
Epicentral distance of station farthest from the epicenter (degree) 0.51081
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 110191581
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-09-26 21:03:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATCC.EHZ. 2022-09-26T20:47:02.08 0.6 undecidable manual S 319 56.6988 50 -0.34 44
IV.GUMA.HHZ. 2022-09-26T20:46:56.15 0.6 undecidable manual S 33 34.3434 102 0.04 49
IV.MF5.EHZ. 2022-09-26T20:46:56.74 0.6 undecidable manual S 55 35.4423 101 0.27 47
IV.CSP1.EHZ. 2022-09-26T20:46:55.17 0.3 undecidable manual S 14 33.0447 102 -0.49 67
IV.RM33.EHZ. 2022-09-26T20:46:55.89 0.6 undecidable manual S 164 33.8439 102 -0.04 49
IV.ATCC.EHZ. 2022-09-26T20:46:55.15 0.6 undecidable manual P 319 56.6988 50 0.54 42
IV.FDMO.HHZ. 2022-09-26T20:46:53.17 0.6 undecidable manual S 357 25.9518 105 -0.08 49
IV.SMA1.EHZ. 2022-09-26T20:46:53.52 0.6 undecidable manual S 135 26.8509 105 -0.05 50
IV.CESI.HHZ. 2022-09-26T20:46:53.98 0.6 undecidable manual S 324 27.6501 104 0.16 48
IV.GUMA.HHZ. 2022-09-26T20:46:51.07 1.0 positive manual P 33 34.3434 102 0.11 24
IV.MMO1.EHZ. 2022-09-26T20:46:51.69 0.6 undecidable manual S 59 21.0678 108 0.06 50
IV.MF5.EHZ. 2022-09-26T20:46:51.33 1.0 positive manual P 55 35.4423 101 0.16 24
IV.CSP1.EHZ. 2022-09-26T20:46:50.39 1.0 undecidable manual P 14 33.0447 102 -0.31 23
IV.RM33.EHZ. 2022-09-26T20:46:50.71 0.1 undecidable manual P 164 33.8439 102 -0.15 96
IV.SMA1.EHZ. 2022-09-26T20:46:49.49 0.1 undecidable manual P 135 26.8509 105 0 100
IV.CESI.HHZ. 2022-09-26T20:46:49.74 0.1 undecidable manual P 324 27.6501 104 0.1 98
IV.FDMO.HHZ. 2022-09-26T20:46:49.42 0.6 negative manual P 357 25.9518 105 0.11 49
IV.MMO1.EHZ. 2022-09-26T20:46:48.54 0.6 positive manual P 59 21.0678 108 0.17 49
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MMO1.EHE. ML:0.9 0.0000665 1.28 AML other m 2022-09-26T20:46:51.96
IV.MMO1.EHN. ML:0.8 0.0000516 0.88 AML other m 2022-09-26T20:46:52.63
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