Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 26-09-2022 and time 07:04:40 (UTC) in region 8 km W Arquata del Tronto (AP)

A magnitude ML 1.8 earthquake occured in region: 8 km W Arquata del Tronto (AP), on

  • 26-09-2022 07:04:40 (UTC)
  • 26-09-2022 09:04:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7750, 13.2000 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Arquata del Tronto AP 8 1178 1178
Norcia PG 9 4957 6135
Accumoli RI 10 667 6802
Montegallo AP 13 523 7325
Castelsantangelo sul Nera MC 14 281 7606
Cascia PG 16 3217 10823
Acquasanta Terme AP 17 2916 13739
Montemonaco AP 17 604 14343
Preci PG 18 724 15067
Amatrice RI 18 2657 17724
Cittareale RI 18 482 18206
Ussita MC 20 444 18650
Visso MC 20 1107 19757

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km W of Teramo (54892 inhabitants)
45 Km E of Foligno (57155 inhabitants)
50 Km NW of L'Aquila (69753 inhabitants)
51 Km E of Terni (111501 inhabitants)
76 Km E of Perugia (166134 inhabitants)
83 Km W of Montesilvano (53738 inhabitants)
90 Km W of Pescara (121014 inhabitants)
92 Km NW of Chieti (51815 inhabitants)
94 Km NE of Guidonia Montecelio (88673 inhabitants)
96 Km NE of Tivoli (56533 inhabitants)
97 Km S of Ancona (100861 inhabitants)
98 Km E of Viterbo (67173 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
Bulletin
Rev1000 		ML 1.8 2022-09-26
07:04:40		 42.7753 13.2002 11 2024-03-01
15:27:59		 Bollettino Sismico Italiano INGV 111479761
Reviewed
Rev100 		ML 1.7 2022-09-26
07:04:40		 42.7792 13.2033 11 2022-09-26
07:13:50		 Sala Sismica INGV-Roma 110170551
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-09-26 07:04:40 ± 0.04
Latitude 42.7753 ± 0.0018
Longitude 13.2002 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 111479761

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 286
Semi-minor axis of confidence ellipse (meter) 215
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 72
Circular confidence region, given by single value of horizontal uncertainty (meter) 290.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 54
Number of associated phases, regardless of their use for origin computation 61
Number of defining phases 61
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.08544
Epicentral distance of station farthest from the epicenter (degree) 0.72755
Number of stations at which the event was observed 33
Number of stations from which data was used for origin computation 33
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 30
Type of magnitude ML
Reference to an origin 110170551
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-09-26 07:13:50

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 40
Type of magnitude ML
Reference to an origin 111479761
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-11-04 11:32:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2022-09-26T07:04:59.40 0.6 undecidable manual S 353 61.9935 50 0.24 46
IV.ASSB.HHZ. 2022-09-26T07:04:57.00 0.6 undecidable manual S 304 53.0025 50 0.22 47
IV.MNTT.EHZ. 2022-09-26T07:04:55.20 0.6 undecidable manual S 45 45.2214 50 0.52 45
IV.GIGS.HHZ. 2022-09-26T07:04:54.70 0.6 undecidable manual S 139 46.9197 50 -0.45 46
IV.T0110.HHZ. 2022-09-26T07:04:53.49 0.3 undecidable manual P 142 76.7676 50 0.15 69
IV.PF6.EHN. 2022-09-26T07:04:53.00 0.6 undecidable manual S 359 40.2264 50 -0.35 47
IV.SAP2.EHE. 2022-09-26T07:04:53.60 0.6 undecidable manual S 24 39.1275 50 0.54 45
IV.MML1.EHZ. 2022-09-26T07:04:53.80 0.6 undecidable manual S 334 41.8248 50 0.01 50
IV.SSFR.HHZ. 2022-09-26T07:04:53.92 0.6 undecidable manual P 335 80.7636 50 -0.04 47
IV.ARRO.EHZ. 2022-09-26T07:04:53.50 0.6 undecidable manual S 239 41.625 50 -0.22 48
IV.TERO.HHZ. 2022-09-26T07:04:52.10 0.3 undecidable manual S 117 37.0296 50 -0.4 71
IV.ATCC.EHZ. 2022-09-26T07:04:51.80 0.1 undecidable manual P 315 64.2912 50 0.37 90
IV.MF5.EHZ. 2022-09-26T07:04:51.60 0.3 undecidable manual S 42 31.6461 50 0.54 69
IV.EL6.EHZ. 2022-09-26T07:04:51.01 0.1 undecidable manual P 353 61.9935 50 -0.06 96
IV.CESI.HHZ. 2022-09-26T07:04:51.80 0.6 undecidable manual S 317 35.0427 50 -0.16 50
IV.CING.HHZ. 2022-09-26T07:04:51.63 0.1 undecidable manual P 360 66.5778 50 -0.15 94
IV.GUMA.HNN. 2022-09-26T07:04:51.90 0.3 undecidable manual S 19 33.744 50 0.28 73
IV.CSP1.EHZ. 2022-09-26T07:04:51.80 0.3 undecidable manual S 1 35.1426 50 -0.19 74
IV.CAMP.HHZ. 2022-09-26T07:04:50.80 0.6 undecidable manual S 147 31.5462 50 -0.24 49
IT.MTCL.HGZ. 2022-09-26T07:04:50.00 0.3 undecidable manual S 326 29.2485 50 -0.42 71
IV.RM33.EHE. 2022-09-26T07:04:50.90 0.3 undecidable manual S 178 29.5482 50 0.39 72
IV.FDMO.HHZ. 2022-09-26T07:04:50.40 0.3 undecidable manual S 342 30.3474 50 -0.33 72
IV.LNSS.HHZ. 2022-09-26T07:04:49.00 0.3 undecidable manual S 214 23.1546 50 0.2 75
IV.GAVE.EHZ. 2022-09-26T07:04:49.70 0.3 undecidable manual S 250 26.5512 50 -0.01 78
IV.ASSB.HHZ. 2022-09-26T07:04:49.50 0.1 undecidable manual P 304 53.0025 50 -0.19 95
IV.FEMA.HNE. 2022-09-26T07:04:48.70 0.6 undecidable manual S 329 24.0537 50 -0.34 49
IV.MNTT.EHZ. 2022-09-26T07:04:48.64 0.6 undecidable manual P 45 45.2214 50 0.16 49
IV.GIGS.HHZ. 2022-09-26T07:04:48.37 0.1 undecidable manual P 139 46.9197 50 -0.38 93
IV.OFFI.HHZ. 2022-09-26T07:04:48.94 0.1 undecidable manual P 66 43.2234 50 0.75 82
IV.ARRO.EHZ. 2022-09-26T07:04:48.28 0.6 undecidable manual P 239 41.625 50 0.35 47
IV.TERO.HHZ. 2022-09-26T07:04:47.12 0.1 undecidable manual P 117 37.0296 50 -0.1 100
IV.SAP2.EHE. 2022-09-26T07:04:47.69 0.1 undecidable manual P 24 39.1275 50 0.14 99
IV.SMA1.EHZ. 2022-09-26T07:04:47.60 0.6 undecidable manual S 146 19.4694 118 -0.09 52
IV.PF6.EHN. 2022-09-26T07:04:47.44 0.1 positive manual P 359 40.2264 50 -0.28 96
IV.MML1.EHZ. 2022-09-26T07:04:47.90 0.1 negative manual P 334 41.8248 50 -0.07 100
IV.GUMA.HNN. 2022-09-26T07:04:46.87 0.1 undecidable manual P 19 33.744 50 0.16 100
IV.MC2.EHZ. 2022-09-26T07:04:46.60 0.3 undecidable manual S 357 15.0738 125 0.21 76
IV.RM33.EHE. 2022-09-26T07:04:46.05 0.3 undecidable manual P 178 29.5482 50 -0.03 77
IV.CESI.HHZ. 2022-09-26T07:04:46.86 0.3 undecidable manual P 317 35.0427 50 -0.05 76
IV.MF5.EHZ. 2022-09-26T07:04:46.58 0.3 undecidable manual P 42 31.6461 50 0.19 74
7F.SIB1.EHN. 2022-09-26T07:04:46.20 0.3 undecidable manual S 23 14.3745 126 0.01 80
IV.MMO1.EHZ. 2022-09-26T07:04:46.80 0.3 undecidable manual S 37 17.1717 121 -0.19 76
IV.CSP1.EHZ. 2022-09-26T07:04:46.74 0.3 undecidable manual P 1 35.1426 50 -0.19 74
IV.MTRA.EHZ. 2022-09-26T07:04:46.50 0.3 undecidable manual S 97 16.1727 123 -0.18 77
IV.CAMP.HHZ. 2022-09-26T07:04:46.21 0.3 undecidable manual P 147 31.5462 50 -0.17 75
7F.SIB2.EHZ. 2022-09-26T07:04:46.10 0.3 undecidable manual S 33 15.3735 124 -0.36 74
IT.MTCL.HGZ. 2022-09-26T07:04:45.85 0.3 undecidable manual P 326 29.2485 50 -0.17 75
IV.NRCA.HNZ. 2022-09-26T07:04:45.10 0.3 undecidable manual S 313 9.4794 138 0.18 77
7F.SIB3.EHZ. 2022-09-26T07:04:45.40 0.3 undecidable manual S 27 12.4764 130 -0.25 76
IV.GAVE.EHZ. 2022-09-26T07:04:45.70 0.3 undecidable manual P 250 26.5512 50 0.08 77
IV.FEMA.HNE. 2022-09-26T07:04:45.25 0.3 undecidable manual P 329 24.0537 50 0.02 78
IV.FDMO.HHZ. 2022-09-26T07:04:45.94 0.3 undecidable manual P 342 30.3474 50 -0.26 73
IV.LNSS.HHZ. 2022-09-26T07:04:45.23 0.3 undecidable manual P 214 23.1546 50 0.14 76
IV.SMA1.EHZ. 2022-09-26T07:04:44.56 0.3 undecidable manual P 146 19.4694 118 0.12 77
IV.MMO1.EHZ. 2022-09-26T07:04:44.04 0.3 undecidable manual P 37 17.1717 121 -0.01 79
7F.SIB1.EHN. 2022-09-26T07:04:43.73 0.3 undecidable manual P 23 14.3745 126 0.15 77
IV.MTRA.EHZ. 2022-09-26T07:04:43.91 0.3 undecidable manual P 97 16.1727 123 0.05 79
7F.SIB2.EHZ. 2022-09-26T07:04:43.69 0.3 undecidable manual P 33 15.3735 124 -0.05 79
IV.NRCA.HNZ. 2022-09-26T07:04:43.13 0.3 undecidable manual P 313 9.4794 138 0.28 76
IV.MC2.EHZ. 2022-09-26T07:04:43.83 0.3 undecidable manual P 357 15.0738 125 0.13 77
7F.SIB3.EHZ. 2022-09-26T07:04:43.32 0.3 undecidable manual P 27 12.4764 130 0.05 79
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNN. ML:2.2 0.00202 0.7 AML other m 2022-09-26T07:04:45.25
IV.NRCA.HHN. ML:2.2 0.0021550000000000002 0.08 AML other m 2022-09-26T07:04:45.60
IV.NRCA.HHE. ML:2.3 0.0026349999999999998 0.14 AML other m 2022-09-26T07:04:45.62
IV.NRCA.HNE. ML:2.3 0.00252 0.12 AML other m 2022-09-26T07:04:45.62
IV.MTRA.EHE. ML:1.7 0.0004345 0.34 AML other m 2022-09-26T07:04:46.69
IV.MTRA.EHN. ML:1.7 0.000433 0.26 AML other m 2022-09-26T07:04:47.13
IV.MC2.EHE. ML:2.2 0.0013714999999999999 0.4 AML other m 2022-09-26T07:04:47.91
IV.SMA1.EHE. ML:1.9 0.000615 0.24 AML other m 2022-09-26T07:04:47.98
IV.MC2.EHN. ML:2.3 0.0019249999999999998 0.78 AML other m 2022-09-26T07:04:48.45
IV.SMA1.EHN. ML:1.7 0.0003715 1.08 AML other m 2022-09-26T07:04:48.45
IV.LNSS.HHN. ML:1.9 0.000483 0.12 AML other m 2022-09-26T07:04:49.57
IV.LNSS.HHE. ML:1.8 0.00038700000000000003 1.44 AML other m 2022-09-26T07:04:49.20
IV.GAVE.EHN. ML:1.7 0.000258 0.7 AML other m 2022-09-26T07:04:50.25
IV.FDMO.HHE. ML:1.8 0.00029749999999999997 0.2 AML other m 2022-09-26T07:04:50.65
IV.FDMO.HHN. ML:1.9 0.000356 0.26 AML other m 2022-09-26T07:04:50.65
IV.CAMP.HHE. ML:1.6 0.0001878 0.2 AML other m 2022-09-26T07:04:51.09
IV.GAVE.EHE. ML:1.9 0.000429 0.18 AML other m 2022-09-26T07:04:51.18
IV.CAMP.HHN. ML:1.3 0.00008685000000000001 0.56 AML other m 2022-09-26T07:04:51.14
IV.MF5.EHN. ML:1.5 0.0001555 0.18 AML other m 2022-09-26T07:04:52.01
IV.MF5.EHE. ML:1.6 0.0001615 0.28 AML other m 2022-09-26T07:04:52.08
IV.CESI.HHN. ML:1.8 0.000242 0.52 AML other m 2022-09-26T07:04:52.34
IV.CESI.HHE. ML:1.6 0.00017999999999999998 0.36 AML other m 2022-09-26T07:04:52.53
IV.CSP1.EHE. ML:1.9 0.00033899999999999995 0.26 AML other m 2022-09-26T07:04:53.18
IV.CSP1.EHN. ML:1.9 0.00030649999999999997 0.58 AML other m 2022-09-26T07:04:53.58
IV.MML1.EHE. ML:1.6 0.0001144 0.16 AML other m 2022-09-26T07:04:54.66
IV.MML1.EHN. ML:1.5 0.0001043 1.38 AML other m 2022-09-26T07:04:54.72
IV.ARRO.EHE. ML:1.5 0.00010055 0.22 AML other m 2022-09-26T07:04:55.22
IV.GIGS.HHN. ML:1.2 0.00004435 0.44 AML other m 2022-09-26T07:04:55.98
IV.ARRO.EHN. ML:1.4 0.00008730000000000001 1.56 AML other m 2022-09-26T07:04:55.15
IV.GIGS.HHE. ML:1.2 0.00004575 1.02 AML other m 2022-09-26T07:04:56.51
IV.MNTT.EHN. ML:2.0 0.00029749999999999997 0.86 AML other m 2022-09-26T07:04:57.50
IV.ASSB.HHE. ML:1.6 0.00009609999999999999 0.16 AML other m 2022-09-26T07:04:58.33
IV.ASSB.HHN. ML:1.5 0.00008094999999999999 0.42 AML other m 2022-09-26T07:04:59.39
IV.MNTT.EHE. ML:2.1 0.000352 0.28 AML other m 2022-09-26T07:05:00.71
IV.ATCC.EHE. ML:1.6 0.00007245 0.5 AML other m 2022-09-26T07:05:05.48
IV.ATCC.EHN. ML:1.6 0.00007580000000000001 0.46 AML other m 2022-09-26T07:05:06.70
IV.SSFR.HHN. ML:1.7 0.00007005 1.58 AML other m 2022-09-26T07:05:07.95
IV.SSFR.HHE. ML:1.7 0.00006975 0.42 AML other m 2022-09-26T07:05:07.51
IV.MURB.HHE. ML:1.8 0.00009240000000000001 0.36 AML other m 2022-09-26T07:05:07.88
IV.MURB.HHN. ML:1.9 0.00011 0.98 AML other m 2022-09-26T07:05:08.70
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