Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 08-09-2023 and time 06:57:32 (Italy) in region 3 km SW Castelsantangelo sul Nera (MC)

A magnitude ML 2.4 earthquake occured in region: 3 km SW Castelsantangelo sul Nera (MC), on

  • 08-09-2023 04:57:32 (UTC)
  • 08-09-2023 06:57:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8760, 13.1280 at 6 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
Castelsantangelo sul Nera MC 3 281 281
Visso MC 7 1107 1388
Preci PG 7 724 2112
Ussita MC 8 444 2556
Norcia PG 10 4957 7513
Bolognola MC 16 142 7655
Sellano PG 16 1079 8734
Montemonaco AP 17 604 9338
Monte Cavallo MC 17 145 9483
Montegallo AP 17 523 10006
Acquacanina MC 18 121 10127
Arquata del Tronto AP 18 1178 11305
Fiastra MC 18 559 11864
Cerreto di Spoleto PG 18 1075 12939
Fiordimonte MC 18 202 13141
Montefortino FM 19 1178 14319
Cascia PG 20 3217 17536
Pieve Torina MC 20 1458 18994

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km E of Foligno (57155 inhabitants)
53 Km NE of Terni (111501 inhabitants)
53 Km W of Teramo (54892 inhabitants)
62 Km NW of L'Aquila (69753 inhabitants)
65 Km E of Perugia (166134 inhabitants)
88 Km SW of Ancona (100861 inhabitants)
93 Km W of Montesilvano (53738 inhabitants)
98 Km NE of Viterbo (67173 inhabitants)
100 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 2.4 2023-09-08
04:57:32		 42.876 13.1278 6 2023-09-08
05:03:35		 Sala Sismica INGV-Roma 120866201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-09-08 04:57:32 ± 0.07
Latitude 42.8760 ± 0.0036
Longitude 13.1278 ± 0.0049
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 120866201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 385
Semi-minor axis of confidence ellipse (meter) 270
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 239
Circular confidence region, given by single value of horizontal uncertainty (meter) 380.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 45
Number of associated phases, regardless of their use for origin computation 62
Number of defining phases 48
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.96048
Number of stations at which the event was observed 38
Number of stations from which data was used for origin computation 28
Magnitude information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 66
Type of magnitude ML
Reference to an origin 120866201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-09-08 05:03:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAFI.HHZ. 2023-09-08T04:58:05.57 0.3 undecidable manual S 299 106.6155 50 0.77 52
IV.BADI.EHZ. 2023-09-08T04:58:04.82 3.0 undecidable manual S 0.79 0
IV.ATMI.HHZ. 2023-09-08T04:58:01.45 3.0 undecidable manual S 1.59 0
IV.NARO.HHZ. 2023-09-08T04:58:01.66 0.3 undecidable manual S 332 92.7405 50 0.58 58
IV.MPAG.EHZ. 2023-09-08T04:58:00.80 0.3 undecidable manual S 341 88.6446 50 0.8 53
IV.PIEI.HHZ. 2023-09-08T04:57:59.84 0.6 undecidable manual S 327 87.4458 50 0.16 43
IV.ATPI.EHZ. 2023-09-08T04:57:59.73 3.0 undecidable manual S -0.27 0
IV.ATVO.HHZ. 2023-09-08T04:57:58.48 3.0 undecidable manual S 0.17 0
IV.FRON.EHZ. 2023-09-08T04:57:57.24 0.6 undecidable manual S 336 78.2661 50 0.02 45
IV.ATFO.HHZ. 2023-09-08T04:57:55.29 3.0 undecidable manual S 0.06 0
IV.GIUL.HHZ. 2023-09-08T04:57:55.01 3.0 negative manual P -2.09 0
IV.ARVD.HHZ. 2023-09-08T04:57:55.29 3.0 undecidable manual S -0.05 0
IV.MURB.HHZ. 2023-09-08T04:57:54.15 0.6 undecidable manual S 311 65.0904 50 0.46 42
IV.CING.HHZ. 2023-09-08T04:57:51.07 0.3 undecidable manual S 6 55.6998 50 -0.12 69
IV.GIGS.HHZ. 2023-09-08T04:57:51.62 1.0 undecidable manual S 142 59.2962 50 -0.54 21
IV.CAFI.HHZ. 2023-09-08T04:57:51.48 1.0 positive manual P 299 106.6155 50 0.25 20
IV.FOSV.EHZ. 2023-09-08T04:57:50.61 0.1 undecidable manual S 328 55.1004 50 -0.44 87
IV.NARO.HHZ. 2023-09-08T04:57:49.56 0.1 undecidable manual P 332 92.7405 50 0.47 80
IV.ATPI.EHZ. 2023-09-08T04:57:49.85 3.0 positive manual P 1.85 0
IV.MPAG.EHZ. 2023-09-08T04:57:48.37 0.6 undecidable manual P 341 88.6446 50 -0.09 44
IV.MGAB.HHZ. 2023-09-08T04:57:48.06 0.1 undecidable manual P 273 82.6506 50 0.53 80
IV.PIEI.HHZ. 2023-09-08T04:57:47.80 1.0 undecidable manual P 327 87.4458 50 -0.47 20
IV.ARRO.EHZ. 2023-09-08T04:57:47.93 3.0 undecidable manual S 0.05 0
IV.ATFO.HHZ. 2023-09-08T04:57:47.14 3.0 positive manual P 1.82 0
IV.ARVD.HHZ. 2023-09-08T04:57:46.00 3.0 positive manual P 0.62 0
IV.FRON.EHZ. 2023-09-08T04:57:46.22 0.6 positive manual P 336 78.2661 50 -0.63 39
IV.ATVO.HHZ. 2023-09-08T04:57:46.66 3.0 negative manual P -0.39 0
IV.MURB.HHZ. 2023-09-08T04:57:44.31 1.0 negative manual P 311 65.0904 50 -0.51 21
IV.GIGS.HHZ. 2023-09-08T04:57:43.42 1.0 undecidable manual P 142 59.2962 50 -0.51 21
IV.MF5.EHZ. 2023-09-08T04:57:43.89 0.6 undecidable manual S 65 29.6481 101 0.71 41
IV.GUMA.HHZ. 2023-09-08T04:57:42.72 0.6 undecidable manual S 39 26.6511 102 0.55 44
IV.FOSV.EHZ. 2023-09-08T04:57:42.59 0.1 negative manual P 328 55.1004 50 -0.7 79
IV.MML1.EHZ. 2023-09-08T04:57:42.72 0.6 undecidable manual S 334 29.2485 101 -0.31 47
IV.CING.HHZ. 2023-09-08T04:57:42.94 0.6 positive manual P 6 55.6998 50 -0.44 43
IV.ATCC.EHZ. 2023-09-08T04:57:42.17 3.0 undecidable manual P -0.09 0
IV.GAVE.EHZ. 2023-09-08T04:57:42.88 0.3 undecidable manual S 223 27.8499 102 0.3 70
IV.MOMA.HHZ. 2023-09-08T04:57:41.51 0.3 undecidable manual P 260 46.0206 50 -0.38 67
IV.TERO.HHZ. 2023-09-08T04:57:41.32 1.0 undecidable manual P 126 47.9187 50 -0.85 19
IV.CSP1.EHZ. 2023-09-08T04:57:41.22 0.6 undecidable manual S 15 24.753 103 -0.29 47
IV.MNTT.EHZ. 2023-09-08T04:57:41.65 0.1 negative manual P 61 43.2234 98 0.22 93
IV.SNTG.HHZ. 2023-09-08T04:57:40.60 1.0 undecidable manual P 340 44.7219 50 -1.08 17
IV.RM33.EHZ. 2023-09-08T04:57:40.55 0.6 negative manual P 170 41.3253 98 -0.5 44
IV.CESI.HHZ. 2023-09-08T04:57:40.98 0.3 undecidable manual S 308 23.0547 104 0.03 75
IV.ASSB.HHZ. 2023-09-08T04:57:40.43 3.0 positive manual P -0.16 0
IV.FDMO.HHZ. 2023-09-08T04:57:39.16 0.6 undecidable manual S 350 18.0708 108 -0.13 49
IV.GAVE.EHZ. 2023-09-08T04:57:38.55 0.1 negative manual P 223 27.8499 102 0.15 97
IT.MTCL.HGZ. 2023-09-08T04:57:38.72 0.6 undecidable manual S 321 16.7721 109 -0.11 50
IV.LNSS.HHZ. 2023-09-08T04:57:38.98 0.1 undecidable manual P 193 31.1466 101 -0.06 98
IV.MF5.EHZ. 2023-09-08T04:57:38.82 0.1 undecidable manual P 65 29.6481 101 0.07 98
IV.GUMA.HHZ. 2023-09-08T04:57:38.22 0.1 positive manual P 39 26.6511 102 0.05 99
IV.SMA1.EHZ. 2023-09-08T04:57:38.98 1.0 positive manual P 148 32.0457 100 -0.24 24
IV.MML1.EHZ. 2023-09-08T04:57:38.28 0.1 positive manual P 334 29.2485 101 -0.38 92
IV.MMO1.EHZ. 2023-09-08T04:57:38.99 0.6 undecidable manual S 81 16.3725 109 0.27 48
IV.CESI.HHZ. 2023-09-08T04:57:37.43 0.1 positive manual P 308 23.0547 104 -0.03 100
IV.CSP1.EHZ. 2023-09-08T04:57:37.52 0.3 positive manual P 15 24.753 103 -0.26 71
IV.FEMA.HNZ. 2023-09-08T04:57:37.11 0.6 undecidable manual S 326 11.4774 117 -0.04 51
IV.MMO1.EHZ. 2023-09-08T04:57:36.18 1.0 undecidable manual P 81 16.3725 109 0 25
IT.MTCL.HGZ. 2023-09-08T04:57:36.25 0.3 undecidable manual P 321 16.7721 109 0.01 76
IV.FDMO.HHZ. 2023-09-08T04:57:36.43 0.1 positive manual P 350 18.0708 108 -0.07 100
IV.FEMA.HNZ. 2023-09-08T04:57:35.45 0.3 undecidable manual P 326 11.4774 117 0.18 74
IV.NRCA.HNZ. 2023-09-08T04:57:35.40 0.6 undecidable manual S 193 4.7952 140 0.09 51
IV.NRCA.HNZ. 2023-09-08T04:57:34.58 1.0 negative manual P 193 4.7952 140 0.38 24
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FEMA.HNE. ML:2.7 0.00788 0.62 AML other m 2023-09-08T04:57:37.19
IV.FEMA.HNN. ML:2.7 0.006875 0.62 AML other m 2023-09-08T04:57:38.53
IT.MTCL.HGE. ML:4.6 0.4055 0.48 AML other m 2023-09-08T04:57:39.11
IT.MTCL.HGN. ML:4.6 0.4395 0.44 AML other m 2023-09-08T04:57:39.29
IV.MMO1.EHN. ML:2.3 0.0019399999999999999 0.96 AML other m 2023-09-08T04:57:39.16
IV.FDMO.HHE. ML:2.4 0.00225 1.36 AML other m 2023-09-08T04:57:40.87
IV.MMO1.EHE. ML:2.4 0.00281 1.52 AML other m 2023-09-08T04:57:41.07
IV.FDMO.HHN. ML:2.4 0.002525 1.02 AML other m 2023-09-08T04:57:41.60
IV.CESI.HHE. ML:2.7 0.00342 0.88 AML other m 2023-09-08T04:57:41.59
IV.CESI.HNE. ML:2.7 0.00327 0.86 AML other m 2023-09-08T04:57:41.60
IV.CESI.HHN. ML:3.0 0.0069500000000000004 0.12 AML other m 2023-09-08T04:57:41.47
IV.CESI.HNN. ML:2.9 0.006395 0.12 AML other m 2023-09-08T04:57:41.48
IV.CSP1.EHE. ML:2.7 0.003065 1.08 AML other m 2023-09-08T04:57:42.97
IV.CSP1.EHN. ML:2.8 0.00404 0.38 AML other m 2023-09-08T04:57:42.93
IV.GUMA.HNN. ML:3.0 0.0061600000000000005 0.24 AML other m 2023-09-08T04:57:42.82
IV.MML1.HNN. ML:2.4 0.00141 1.76 AML other m 2023-09-08T04:57:43.07
IV.MML1.EHN. ML:2.4 0.001415 1.76 AML other m 2023-09-08T04:57:43.08
IV.MML1.EHE. ML:2.4 0.001355 0.18 AML other m 2023-09-08T04:57:43.37
IV.MML1.HNE. ML:2.4 0.001355 0.18 AML other m 2023-09-08T04:57:43.37
IV.GUMA.HHE. ML:2.9 0.00529 0.76 AML other m 2023-09-08T04:57:43.51
IV.GUMA.HHN. ML:3.0 0.006984999999999999 0.32 AML other m 2023-09-08T04:57:43.85
IV.GAVE.HNN. ML:2.0 0.000504 1.56 AML other m 2023-09-08T04:57:45.94
IV.GAVE.EHN. ML:2.4 0.00146 1.54 AML other m 2023-09-08T04:57:45.94
IV.GAVE.HNE. ML:2.6 0.0020949999999999996 1.08 AML other m 2023-09-08T04:57:45.76
IV.GAVE.EHE. ML:2.6 0.00204 1.1 AML other m 2023-09-08T04:57:45.77
IV.GUMA.HNE. ML:2.9 0.0052450000000000005 1.66 AML other m 2023-09-08T04:57:46.92
IV.SNTG.HNN. ML:2.2 0.000536 1.2 AML other m 2023-09-08T04:57:48.65
IV.SNTG.HHN. ML:2.2 0.0005215 1.02 AML other m 2023-09-08T04:57:48.15
IV.SNTG.HHE. ML:2.2 0.0005124999999999999 0.14 AML other m 2023-09-08T04:57:48.54
IV.SNTG.HNE. ML:2.2 0.000569 0.72 AML other m 2023-09-08T04:57:48.54
IV.LNSS.HHN. ML:2.1 0.0006580000000000001 0.5 AML other m 2023-09-08T04:57:48.66
IV.RM33.EHN. ML:1.8 0.000195 0.6 AML other m 2023-09-08T04:57:49.36
IV.SMA1.EHN. ML:2.1 0.0005975 0.46 AML other m 2023-09-08T04:57:49.20
IV.MOMA.HNE. ML:2.4 0.000714 0.22 AML other m 2023-09-08T04:57:49.43
IV.MOMA.HHN. ML:2.2 0.00048150000000000005 1.18 AML other m 2023-09-08T04:57:49.64
IV.MF5.EHE. ML:2.3 0.0010575 0.82 AML other m 2023-09-08T04:57:50.17
IV.MOMA.HNN. ML:2.2 0.0005024999999999999 0.18 AML other m 2023-09-08T04:57:50.33
IV.MOMA.HHE. ML:2.3 0.0006935 1.08 AML other m 2023-09-08T04:57:50.42
IV.LNSS.HHE. ML:2.0 0.000488 0.52 AML other m 2023-09-08T04:57:50.74
IV.FOSV.HNE. ML:2.6 0.00086 0.42 AML other m 2023-09-08T04:57:50.70
IV.FOSV.EHE. ML:2.5 0.000843 1.34 AML other m 2023-09-08T04:57:50.71
IV.MF5.EHN. ML:2.3 0.0009945 1.4 AML other m 2023-09-08T04:57:50.02
IV.MNTT.EHN. ML:2.6 0.00126 1.04 AML other m 2023-09-08T04:57:50.85
IV.FOSV.HNN. ML:2.5 0.000757 1.74 AML other m 2023-09-08T04:57:51.11
IV.FOSV.EHN. ML:2.5 0.000777 1.74 AML other m 2023-09-08T04:57:51.11
IV.RM33.EHE. ML:1.8 0.0002215 0.58 AML other m 2023-09-08T04:57:51.14
IV.MNTT.EHE. ML:2.6 0.0012315 1.42 AML other m 2023-09-08T04:57:51.82
IV.CING.HHN. ML:2.0 0.0002475 0.98 AML other m 2023-09-08T04:57:51.98
IV.SMA1.EHE. ML:2.0 0.00053 1.16 AML other m 2023-09-08T04:57:53.75
IV.GIGS.HHN. ML:1.4 0.00005 0.42 AML other m 2023-09-08T04:57:53.95
IV.CING.HHE. ML:2.1 0.0003185 1.34 AML other m 2023-09-08T04:57:54.12
IV.GIGS.HHE. ML:1.3 0.00004095 0.56 AML other m 2023-09-08T04:57:54.42
IV.MURB.HNE. ML:2.8 0.0012250000000000002 0.24 AML other m 2023-09-08T04:57:55.54
IV.MURB.HHE. ML:2.8 0.00133 0.28 AML other m 2023-09-08T04:57:55.53
IV.MURB.HHN. ML:2.7 0.0009285 0.5 AML other m 2023-09-08T04:57:56.39
IV.FRON.EHE. ML:2.3 0.00029949999999999996 0.12 AML other m 2023-09-08T04:57:57.58
IV.FRON.EHN. ML:2.3 0.0003135 1.52 AML other m 2023-09-08T04:57:57.15
IV.MURB.HNN. ML:2.6 0.0008285 0.62 AML other m 2023-09-08T04:57:58.03
IV.PIEI.HHE. ML:2.2 0.000203 0.88 AML other m 2023-09-08T04:58:01.58
IV.MPAG.EHE. ML:2.1 0.0001595 0.42 AML other m 2023-09-08T04:58:01.76
IV.MPAG.EHN. ML:2.0 0.000129 0.86 AML other m 2023-09-08T04:58:01.51
IV.PIEI.HHN. ML:2.0 0.000131 0.18 AML other m 2023-09-08T04:58:02.16
IV.NARO.HHE. ML:2.0 0.00011399999999999999 0.76 AML other m 2023-09-08T04:58:04.49
IV.CAFI.HHN. ML:2.0 0.0000888 0.32 AML other m 2023-09-08T04:58:07.47
IV.NARO.HHN. ML:1.9 0.0000821 0.64 AML other m 2023-09-08T04:58:09.18
IV.CAFI.HHE. ML:2.1 0.00010899999999999999 0.64 AML other m 2023-09-08T04:58:11.69
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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