Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 10-12-2019 and time 20:27:05 (Italy) in region 3 km SW Villavallelonga (AQ)

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

  • 10-12-2019 19:27:05 (UTC)
  • 10-12-2019 20:27:05 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.8420, 13.6140 at 16 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
Villavallelonga AQ 3 919 919
Collelongo AQ 6 1233 2152
Balsorano AQ 6 3569 5721
San Vincenzo Valle Roveto AQ 7 2347 8068
Pescosolido FR 11 1555 9623
Lecce nei Marsi AQ 12 1702 11325
Civita d'Antino AQ 13 979 12304
Campoli Appennino FR 13 1725 14029
Ortucchio AQ 13 1860 15889
Morino AQ 13 1448 17337
Sora FR 14 26144 43481
Gioia dei Marsi AQ 14 1989 45470
Trasacco AQ 14 6246 51716
Bisegna AQ 15 223 51939
Pescasseroli AQ 15 2203 54142
Broccostella FR 15 2741 56883
Civitella Roveto AQ 18 3268 60151
Luco dei Marsi AQ 18 6079 66230
Posta Fibreno FR 18 1139 67369
San Benedetto dei Marsi AQ 18 3909 71278
Isola del Liri FR 18 11715 82993
Castelliri FR 19 3454 86447
Opi AQ 19 420 86867
Fontechiari FR 20 1303 88170
Ortona dei Marsi AQ 20 542 88712
Vicalvi FR 20 783 89495

Municipalities with at least 50000 inhabitants

An earthquake occurred to
59 Km SE of L'Aquila (69753 inhabitants)
69 Km E of Tivoli (56533 inhabitants)
71 Km E of Velletri (53303 inhabitants)
72 Km NE of Latina (125985 inhabitants)
73 Km SW of Chieti (51815 inhabitants)
76 Km E of Guidonia Montecelio (88673 inhabitants)
85 Km E of Aprilia (73446 inhabitants)
85 Km SW of Pescara (121014 inhabitants)
87 Km SW of Montesilvano (53738 inhabitants)
91 Km S of Teramo (54892 inhabitants)
93 Km E of Anzio (54211 inhabitants)
94 Km E of Roma (2864731 inhabitants)
94 Km E of Pomezia (62966 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 2019-12-10
19:27:05		 41.8423 13.614 16 2020-02-28
16:42:12		 Bollettino Sismico Italiano INGV 74544441
Reviewed
Rev100 		ML 0.9 2019-12-10
19:27:05		 41.8423 13.614 16 2019-12-10
22:59:09		 Sala Sismica INGV-Roma 74531391
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-10 19:27:05 ± 0.06
Latitude 41.8423 ± 0.0018
Longitude 13.6140 ± 0.0024
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 74544441

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 208
Semi-minor axis of confidence ellipse (meter) 104
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 149
Circular confidence region, given by single value of horizontal uncertainty (meter) 210.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 61
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.39031
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 74544441
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-12-11 07:22:30

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 74531391
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-10 22:59:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
SI.KOSI.HHZ. 2019-12-10T19:28:31.29 3.0 negative manual Pg 20.360001 0
CR.ZAG.BHZ. 2019-12-10T19:28:25.22 3.0 negative manual Pg 18.77 0
IV.FIR.HHZ. 2019-12-10T19:28:19.46 3.0 undecidable manual Sn 3.97 0
IV.RIBO.EHZ.01 2019-12-10T19:27:58.74 3.0 undecidable manual Sn -0.7 0
IV.NDIM.HNZ. 2019-12-10T19:27:58.31 3.0 positive manual Pn 6.84 0
IV.TDS.HHZ. 2019-12-10T19:27:55.52 3.0 undecidable manual Sn -2.94 0
IV.MSSA.HHZ. 2019-12-10T19:27:48.36 3.0 undecidable manual Pn -2.74 0
IV.APEC.HHZ. 2019-12-10T19:27:36.75 3.0 undecidable manual Pg 6.87 0
IV.ECTS.EHZ. 2019-12-10T19:27:33.56 3.0 undecidable manual Pg 0.67 0
IV.CRJA.HHZ. 2019-12-10T19:27:27.96 3.0 negative manual Pg 0.08 0
IV.ATFO.HHZ. 2019-12-10T19:27:25.33 3.0 undecidable manual Pn -1.73 0
IV.GIUL.HHE. 2019-12-10T19:27:19.03 0.3 undecidable manual S 223 43.3233 99 -0.17 70
IV.INTR.HHZ. 2019-12-10T19:27:15.78 0.3 undecidable manual S 52 30.4473 104 -0.04 73
IV.PTQR.HHE. 2019-12-10T19:27:14.81 0.3 undecidable manual S 319 26.5512 108 -0.02 74
IV.GUAR.HHE. 2019-12-10T19:27:14.54 0.3 undecidable manual S 258 25.4523 109 -0.02 74
IV.LRP.EHE. 2019-12-10T19:27:13.71 0.3 undecidable manual S 186 21.7671 113 0.08 74
IV.GIUL.HHE. 2019-12-10T19:27:13.19 0.1 undecidable manual P 223 43.3233 99 -0.05 95
IV.POFI.HHE. 2019-12-10T19:27:12.16 0.3 undecidable manual S 150 16.0728 124 -0.13 74
IT.OPI.HGE. 2019-12-10T19:27:12.92 0.3 undecidable manual S 112 19.3695 117 -0.11 73
IV.INTR.HHZ. 2019-12-10T19:27:11.30 0.1 positive manual P 52 30.4473 104 0.02 98
IV.GUAR.HHE. 2019-12-10T19:27:10.56 0.1 undecidable manual P 258 25.4523 109 0.01 99
IV.PTQR.HHE. 2019-12-10T19:27:10.70 0.3 undecidable manual P 319 26.5512 108 -0.01 74
IV.VVLD.HHZ. 2019-12-10T19:27:10.16 0.3 undecidable manual S 14 3.0969 167 -0.1 76
IV.LRP.EHE. 2019-12-10T19:27:10.17 0.1 undecidable manual P 186 21.7671 113 0.16 97
IV.POFI.HHE. 2019-12-10T19:27:09.20 0.1 undecidable manual P 150 16.0728 124 -0.04 100
IT.OPI.HGE. 2019-12-10T19:27:09.76 0.1 undecidable manual P 112 19.3695 117 0.09 99
IV.VVLD.HHZ. 2019-12-10T19:27:08.24 0.1 negative manual P 14 3.0969 167 0.18 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VVLD.HNE. ML:1.0 0.00011108933 0.1024 AML other m 2019-12-10T19:27:10.30
IV.VVLD.HNN. ML:0.8 0.00007161438000000001 0.128 AML other m 2019-12-10T19:27:10.34
IV.VVLD.HHE. ML:1.1 0.00014050000000000003 0.66 AML other m 2019-12-10T19:27:10.62
IV.VVLD.HHN. ML:1.0 0.0001061 0.72 AML other m 2019-12-10T19:27:10.27
IV.INTR.HHE. ML:0.8 0.0000246041405 0.2048 AML other m 2019-12-10T19:27:15.80
IV.INTR.HHN. ML:0.5 0.00001571804 0.1024 AML other m 2019-12-10T19:27:16.26
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
Waveforms Seismic signals in miniseed + resp format not available