Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 11-10-2023 and time 03:53:12 (Italy) in region 6 km SW Roccaraso (AQ)

A magnitude ML 1.9 earthquake occured in region: 6 km SW Roccaraso (AQ), on

  • 11-10-2023 01:53:12 (UTC)
  • 11-10-2023 03:53:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.8060, 14.0310 at 19 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
Roccaraso AQ 6 1627 1627
Barrea AQ 6 726 2353
Scontrone AQ 7 574 2927
Castel di Sangro AQ 7 6538 9465
Rivisondoli AQ 8 700 10165
Alfedena AQ 8 864 11029
Civitella Alfedena AQ 9 296 11325
Villetta Barrea AQ 9 653 11978
Pescocostanzo AQ 10 1128 13106
Montenero Val Cocchiara IS 11 538 13644
San Pietro Avellana IS 13 503 14147
Rionero Sannitico IS 14 1118 15265
Ateleta AQ 15 1181 16446
Rocca Pia AQ 15 178 16624
Pizzone IS 15 329 16953
Scanno AQ 16 1847 18800
Opi AQ 17 420 19220
Castel San Vincenzo IS 17 516 19736
Forlì del Sannio IS 18 675 20411
Castel del Giudice IS 18 346 20757
Acquaviva d'Isernia IS 18 425 21182
Cerro al Volturno IS 18 1281 22463
Gamberale CH 19 320 22783
Vastogirardi IS 19 704 23487
Pettorano sul Gizio AQ 20 1376 24863
Capracotta IS 20 903 25766

Municipalities with at least 50000 inhabitants

An earthquake occurred to
62 Km S of Chieti (51815 inhabitants)
75 Km S of Pescara (121014 inhabitants)
79 Km S of Montesilvano (53738 inhabitants)
80 Km SE of L'Aquila (69753 inhabitants)
85 Km N of Caserta (76326 inhabitants)
94 Km N of Aversa (53047 inhabitants)
98 Km NW of Benevento (60091 inhabitants)
99 Km N of Giugliano in Campania (122974 inhabitants)
99 Km S of Teramo (54892 inhabitants)
100 Km N of Acerra (59573 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 1.9 2023-10-11
01:53:12		 41.8062 14.0307 19 2023-10-11
02:03:10		 Sala Sismica INGV-Roma 121972441
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-10-11 01:53:12 ± 0.09
Latitude 41.8062 ± 0.0036
Longitude 14.0307 ± 0.0048
Depth (km) 19 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 121972441

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 458
Semi-minor axis of confidence ellipse (meter) 141
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 62
Circular confidence region, given by single value of horizontal uncertainty (meter) 460.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 109
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 20
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) 0.57826
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 15
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 48
Type of magnitude ML
Reference to an origin 121972441
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-10-11 02:03:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
OT.OT12.EHZ. 2023-10-11T01:53:40.10 3.0 positive manual P -0.21 0
IV.CSP1.EHZ. 2023-10-11T01:53:40.70 3.0 negative manual P 0.56 0
IV.FIAM.HHZ. 2023-10-11T01:53:30.87 3.0 positive manual P 0.4 0
IV.CERT.HHZ. 2023-10-11T01:53:29.11 3.0 positive manual P -0.91 0
IV.VITU.HHZ. 2023-10-11T01:53:29.90 3.0 positive manual P 0.04 0
IV.GIUL.HHZ. 2023-10-11T01:53:27.04 3.0 positive manual P -0.03 0
IV.SACR.HHZ. 2023-10-11T01:53:27.19 3.0 positive manual P -0.49 0
IV.BSSO.HHZ. 2023-10-11T01:53:26.62 3.0 undecidable manual P 1.93 0
IV.GUAR.HHZ. 2023-10-11T01:53:25.75 3.0 positive manual P 0.52 0
IV.PTRJ.HHZ. 2023-10-11T01:53:24.39 0.6 undecidable manual P 140 64.1913 99 0.09 60
IV.FAGN.HHZ. 2023-10-11T01:53:23.84 0.3 undecidable manual P 324 62.8926 99 -0.27 88
IV.PTQR.HHZ. 2023-10-11T01:53:23.39 3.0 positive manual P -1.34 0
IV.T0110.HHZ. 2023-10-11T01:53:22.20 0.3 undecidable manual P 336 51.4152 102 -0.17 92
IV.CERA.HHZ. 2023-10-11T01:53:22.29 0.3 undecidable manual S 183 23.1546 121 0.11 98
IV.MIDA.HHZ. 2023-10-11T01:53:22.80 0.3 undecidable manual S 134 25.9518 117 -0.04 98
IV.INTR.HHZ. 2023-10-11T01:53:22.78 0.3 undecidable manual S 336 25.0527 118 0.15 95
IV.VAGA.HHZ. 2023-10-11T01:53:21.91 0.3 undecidable manual P 159 46.5201 103 0.28 90
IV.MCI.EHZ. 2023-10-11T01:53:20.81 0.3 undecidable manual P 207 39.3273 106 0.25 92
IV.RNI2.HHZ. 2023-10-11T01:53:20.27 0.3 undecidable manual S 138 15.1737 135 -0.24 96
IV.LRP.EHZ. 2023-10-11T01:53:20.71 0.3 undecidable manual P 245 40.7259 106 -0.06 94
IT.OPI.HGZ. 2023-10-11T01:53:20.89 0.3 undecidable manual S 259 16.872 131 0.05 100
IT.SULC.HNZ. 2023-10-11T01:53:19.67 0.3 undecidable manual P 341 30.747 112 0.36 90
IV.VVLD.HHZ. 2023-10-11T01:53:19.69 0.3 undecidable manual P 282 34.4433 109 -0.15 94
IV.MIDA.HHZ. 2023-10-11T01:53:18.50 0.3 undecidable manual P 134 25.9518 117 -0.14 96
IV.LPEL.HHZ. 2023-10-11T01:53:18.98 0.3 undecidable manual P 25 29.5482 113 -0.16 96
IV.INTR.HHZ. 2023-10-11T01:53:18.54 0.3 undecidable manual P 336 25.0527 118 0.02 98
IV.POFI.HHZ. 2023-10-11T01:53:18.83 0.3 undecidable manual P 250 28.1496 115 -0.11 95
IV.CERA.HHZ. 2023-10-11T01:53:18.08 0.3 undecidable manual P 183 23.1546 121 -0.18 95
IT.OPI.HGZ. 2023-10-11T01:53:17.53 0.3 undecidable manual P 259 16.872 131 0.05 100
IV.RNI2.HHZ. 2023-10-11T01:53:17.55 0.3 undecidable manual P 138 15.1737 135 0.26 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RNI2.HHN. ML:2.3 0.0012055 1.08 AML other m 2023-10-11T01:53:21.99
IV.RNI2.HNN. ML:2.2 0.001137 1.08 AML other m 2023-10-11T01:53:21.99
IV.RNI2.HHE. ML:2.3 0.00132 0.38 AML other m 2023-10-11T01:53:22.63
IV.RNI2.HNE. ML:2.3 0.0012064999999999999 0.38 AML other m 2023-10-11T01:53:22.64
IV.MIDA.HHE. ML:1.9 0.00034199999999999996 1.56 AML other m 2023-10-11T01:53:23.08
IV.INTR.HHE. ML:1.9 0.00038950000000000003 1.32 AML other m 2023-10-11T01:53:23.88
IV.CERA.HNE. ML:2.0 0.00054 0.36 AML other m 2023-10-11T01:53:23.06
IV.CERA.HHE. ML:2.0 0.0005645 0.36 AML other m 2023-10-11T01:53:23.06
IV.MIDA.HHN. ML:1.8 0.0002915 1.38 AML other m 2023-10-11T01:53:23.25
IV.INTR.HNE. ML:1.9 0.0003955 1.12 AML other m 2023-10-11T01:53:23.33
IV.INTR.HHN. ML:1.9 0.00042600000000000005 0.32 AML other m 2023-10-11T01:53:23.48
IV.POFI.HHN. ML:1.8 0.000286 0.68 AML other m 2023-10-11T01:53:23.95
IV.CERA.HNN. ML:2.1 0.0006065 0.26 AML other m 2023-10-11T01:53:24.17
IV.CERA.HHN. ML:2.1 0.0006385000000000001 0.26 AML other m 2023-10-11T01:53:24.17
IV.POFI.HHE. ML:2.0 0.0004125 1.3 AML other m 2023-10-11T01:53:24.76
IV.VVLD.HHE. ML:2.1 0.000445 0.1 AML other m 2023-10-11T01:53:25.17
IV.LPEL.HNE. ML:1.9 0.000325 1.1 AML other m 2023-10-11T01:53:25.09
IV.VVLD.HNE. ML:2.1 0.0004445 1.06 AML other m 2023-10-11T01:53:25.17
IV.LPEL.HHE. ML:1.8 0.00028149999999999996 0.4 AML other m 2023-10-11T01:53:26.29
IV.VVLD.HNN. ML:2.0 0.0003355 0.44 AML other m 2023-10-11T01:53:26.67
IV.VVLD.HHN. ML:2.0 0.000361 0.54 AML other m 2023-10-11T01:53:26.18
IV.LRP.EHE. ML:1.9 0.000263 1.54 AML other m 2023-10-11T01:53:26.10
IV.LRP.EHN. ML:1.4 0.0000847 0.42 AML other m 2023-10-11T01:53:27.01
IV.MCI.EHE. ML:2.6 0.00131 0.22 AML other m 2023-10-11T01:53:27.56
IV.LPEL.HHN. ML:1.8 0.0002895 0.44 AML other m 2023-10-11T01:53:27.61
IV.LPEL.HNN. ML:1.8 0.00026900000000000003 0.46 AML other m 2023-10-11T01:53:27.62
IV.MCI.EHN. ML:2.4 0.000804 1.3 AML other m 2023-10-11T01:53:29.65
IV.INTR.HNN. ML:1.9 0.0003815 1.02 AML other m 2023-10-11T01:53:29.23
IV.T0110.HHE. ML:2.0 0.0002405 1.08 AML other m 2023-10-11T01:53:32.10
IV.VAGA.HHN. ML:2.0 0.0002475 0.86 AML other m 2023-10-11T01:53:33.70
IV.VAGA.HNN. ML:1.9 0.0002175 0.38 AML other m 2023-10-11T01:53:34.08
IV.T0110.HHN. ML:2.0 0.0002075 1.12 AML other m 2023-10-11T01:53:34.76
IV.VAGA.HHE. ML:1.6 0.000115 1.26 AML other m 2023-10-11T01:53:35.73
IV.PTQR.HHN. ML:1.3 0.00003990000000000001 0.96 AML other m 2023-10-11T01:53:35.84
IV.GUAR.HHE. ML:0.7 0.000012445000000000002 1.06 AML other m 2023-10-11T01:53:36.07
IV.VAGA.HNE. ML:1.7 0.000123 1.52 AML other m 2023-10-11T01:53:36.97
IV.GIUL.HHE. ML:1.5 0.000047850000000000004 0.92 AML other m 2023-10-11T01:53:38.11
IV.GUAR.HHN. ML:1.0 0.000019549999999999997 0.72 AML other m 2023-10-11T01:53:38.78
IV.GIUL.HHN. ML:1.4 0.00004705 0.46 AML other m 2023-10-11T01:53:38.72
IV.PTRJ.HHN. ML:1.7 0.00010039999999999999 1.3 AML other m 2023-10-11T01:53:39.25
IV.PTQR.HHE. ML:1.2 0.0000354 1.68 AML other m 2023-10-11T01:53:39.10
IV.PTRJ.HHE. ML:1.7 0.0000949 0.42 AML other m 2023-10-11T01:53:40.23
IV.CERT.HHN. ML:1.4 0.00003115 0.4 AML other m 2023-10-11T01:53:43.57
IV.CERT.HHE. ML:1.6 0.0000468 1.48 AML other m 2023-10-11T01:53:43.11
IV.VITU.HHN. ML:1.9 0.00009065000000000001 0.6 AML other m 2023-10-11T01:53:44.13
IV.VITU.HHE. ML:1.8 0.00007125000000000001 1.6 AML other m 2023-10-11T01:53:45.11
IV.FIAM.HHN. ML:1.4 0.0000241 0.9 AML other m 2023-10-11T01:53:46.95
IV.FIAM.HHE. ML:1.4 0.000028749999999999997 1.34 AML other m 2023-10-11T01:53:50.25
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