Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 19-10-2019 and time 02:02:38 (Italy) in region 3 km W Opi (AQ)

A magnitude ML 0.9 earthquake occured in region: 3 km W Opi (AQ), on

  • 19-10-2019 00:02:38 (UTC)
  • 19-10-2019 02:02:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.7750, 13.7920 at 11 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
Opi AQ 3 420 420
Pescasseroli AQ 4 2203 2623
San Donato Val di Comino FR 8 2107 4730
Campoli Appennino FR 10 1725 6455
Alvito FR 10 2713 9168
Villetta Barrea AQ 11 653 9821
Pescosolido FR 12 1555 11376
Posta Fibreno FR 12 1139 12515
Civitella Alfedena AQ 12 296 12811
Settefrati FR 13 728 13539
Gallinaro FR 13 1269 14808
Vicalvi FR 13 783 15591
Fontechiari FR 15 1303 16894
Broccostella FR 15 2741 19635
Picinisco FR 16 1218 20853
Sora FR 16 26144 46997
Scanno AQ 16 1847 48844
Bisegna AQ 17 223 49067
Barrea AQ 17 726 49793
Casalvieri FR 17 2698 52491
Atina FR 17 4316 56807
Villavallelonga AQ 17 919 57726
Casalattico FR 18 574 58300
Villa Latina FR 18 1241 59541
Villalago AQ 18 568 60109
Balsorano AQ 19 3569 63678
Lecce nei Marsi AQ 20 1702 65380

Municipalities with at least 50000 inhabitants

An earthquake occurred to
71 Km SW of Chieti (51815 inhabitants)
72 Km SE of L'Aquila (69753 inhabitants)
81 Km E of Latina (125985 inhabitants)
84 Km SW of Pescara (121014 inhabitants)
85 Km E of Velletri (53303 inhabitants)
85 Km E of Tivoli (56533 inhabitants)
87 Km SW of Montesilvano (53738 inhabitants)
90 Km NW of Caserta (76326 inhabitants)
92 Km E of Guidonia Montecelio (88673 inhabitants)
96 Km NW of Aversa (53047 inhabitants)
97 Km E of Aprilia (73446 inhabitants)
99 Km S of Teramo (54892 inhabitants)
100 Km NW of Giugliano in Campania (122974 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 0.9 2019-10-19
00:02:38		 41.7753 13.7923 11 2020-02-28
16:41:56		 Bollettino Sismico Italiano INGV 73335641
Reviewed
Rev100 		ML 0.9 2019-10-19
00:02:38		 41.7687 13.7962 11 2019-10-19
00:07:37		 Sala Sismica INGV-Roma 73332811
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-19 00:02:38 ± 0.04
Latitude 41.7753 ± 0.0009
Longitude 13.7923 ± 0.0024
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 73335641

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 900
Semi-minor axis of confidence ellipse (meter) 220
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 5
Circular confidence region, given by single value of horizontal uncertainty (meter) 220.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 77
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 25
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) 0.02788
Epicentral distance of station farthest from the epicenter (degree) 0.51441
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 73332811
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-19 00:07:37

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 73335641
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-10-19 07:21:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VAGA.HHZ. 2019-10-19T00:02:55.58 1.0 undecidable manual S 137 54.2013 90 0.19 23
IV.T0110.HHE. 2019-10-19T00:02:54.52 0.6 undecidable manual S 359 50.4162 90 0.15 46
IV.LPEL.HHE. 2019-10-19T00:02:52.56 1.0 undecidable manual S 47 44.1225 90 -0.15 23
IV.MIDA.HHZ. 2019-10-19T00:02:51.56 0.3 undecidable manual S 111 41.0256 90 -0.31 66
IT.SULP.HGN. 2019-10-19T00:02:50.83 0.6 undecidable manual S 18 36.1416 90 0.27 46
IV.LIK.EHN.01 2019-10-19T00:02:50.59 1.0 undecidable manual S 212 36.1416 90 0.01 24
IV.RNI2.HHZ. 2019-10-19T00:02:49.46 0.6 undecidable manual S 105 30.8469 90 0.3 47
IV.FAGN.HHZ. 2019-10-19T00:02:48.63 0.3 undecidable manual P 343 57.0984 90 -0.05 69
IV.VAGA.HHZ. 2019-10-19T00:02:48.48 0.3 undecidable manual P 137 54.2013 90 0.24 68
IV.CERA.HHZ. 2019-10-19T00:02:47.79 0.3 undecidable manual S 136 27.1506 90 -0.39 67
IV.T0110.HHE. 2019-10-19T00:02:47.55 0.1 undecidable manual P 359 50.4162 90 -0.1 92
IV.LPEL.HHE. 2019-10-19T00:02:46.76 1.0 undecidable manual P 47 44.1225 90 0.07 24
IV.LRP.EHZ. 2019-10-19T00:02:46.92 0.3 undecidable manual S 230 22.1556 90 0.07 73
IV.MIDA.HHZ. 2019-10-19T00:02:46.05 0.1 undecidable manual P 111 41.0256 90 -0.15 92
IV.VVLD.HHZ. 2019-10-19T00:02:45.56 0.3 undecidable manual S 307 17.4714 90 -0.03 74
IT.SULP.HGN. 2019-10-19T00:02:45.37 1.0 undecidable manual P 18 36.1416 90 -0.08 24
IV.LIK.EHN.01 2019-10-19T00:02:45.30 1.0 undecidable manual P 212 36.1416 90 -0.16 23
IV.RNI2.HHZ. 2019-10-19T00:02:44.92 0.1 undecidable manual P 105 30.8469 90 0.28 93
IV.POFI.HHZ. 2019-10-19T00:02:43.51 0.6 undecidable manual S 226 9.2796 124 0.03 50
IV.CERA.HHZ. 2019-10-19T00:02:43.81 0.1 positive manual P 136 27.1506 90 -0.26 92
IV.LRP.EHZ. 2019-10-19T00:02:43.33 0.1 positive manual P 230 22.1556 90 0.02 98
IV.VVLD.HHZ. 2019-10-19T00:02:42.74 0.1 negative manual P 307 17.4714 90 0.16 96
IT.OPI.HGZ. 2019-10-19T00:02:42.28 0.3 undecidable manual S 88 3.0969 159 -0.19 73
IV.POFI.HHZ. 2019-10-19T00:02:41.59 0.1 negative manual P 226 9.2796 124 0.23 97
IT.OPI.HGZ. 2019-10-19T00:02:40.92 0.1 negative manual P 88 3.0969 159 0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.POFI.HHE. ML:1.0 0.00011999999999999999 0.1 AML other m 2019-10-19T00:02:43.82
IV.POFI.HHN. ML:1.0 0.00013450000000000002 0.1 AML other m 2019-10-19T00:02:43.80
IV.VVLD.HHE. ML:1.0 0.0000849 0.38 AML other m 2019-10-19T00:02:45.72
IV.VVLD.HHN. ML:1.1 0.0001025 0.12 AML other m 2019-10-19T00:02:45.79
IV.LRP.EHE. ML:0.9 0.00005300000000000001 0.24 AML other m 2019-10-19T00:02:47.48
IV.LRP.EHN. ML:0.6 0.000026 0.82 AML other m 2019-10-19T00:02:47.16
IV.CERA.HHN. ML:0.8 0.000033 0.7 AML other m 2019-10-19T00:02:49.95
IV.CERA.HHE. ML:1.0 0.00005305 1.7 AML other m 2019-10-19T00:02:50.06
IV.RNI2.HHN. ML:0.7 0.000024500000000000003 0.46 AML other m 2019-10-19T00:02:50.82
IV.RNI2.HHE. ML:0.9 0.00003885 1.34 AML other m 2019-10-19T00:02:51.67
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