INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.3 on date 17-02-2019 and time 14:59:49 (Italy) in region 4 km NE Villavallelonga (AQ)

A magnitude ML 1.3 earthquake occured in region: 4 km NE Villavallelonga (AQ), on

  • 17-02-2019 13:59:49 (UTC)
  • 17-02-2019 14:59:49 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.9, 13.66 at 12 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.

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 5 919 919
Lecce nei Marsi AQ 5 1702 2621
Ortucchio AQ 6 1860 4481
Collelongo AQ 6 1233 5714
Gioia dei Marsi AQ 7 1989 7703
Bisegna AQ 9 223 7926
Trasacco AQ 12 6246 14172
San Benedetto dei Marsi AQ 12 3909 18081
Ortona dei Marsi AQ 13 542 18623
Balsorano AQ 13 3569 22192
San Vincenzo Valle Roveto AQ 13 2347 24539
Pescina AQ 14 4133 28672
Pescasseroli AQ 15 2203 30875
Civita d'Antino AQ 15 979 31854
Villalago AQ 15 568 32422
Anversa degli Abruzzi AQ 16 341 32763
Pescosolido FR 17 1555 34318
Morino AQ 17 1448 35766
Luco dei Marsi AQ 17 6079 41845
Cocullo AQ 18 230 42075
Campoli Appennino FR 18 1725 43800
Collarmele AQ 18 894 44694
Scanno AQ 19 1847 46541
Cerchio AQ 19 1635 48176
Civitella Roveto AQ 19 3268 51444
Opi AQ 20 420 51864

Municipalities with at least 50000 inhabitants

An earthquake occurred to
55 Km SE of L'Aquila (69753 inhabitants)
66 Km SW of Chieti (51815 inhabitants)
71 Km E of Tivoli (56533 inhabitants)
77 Km E of Velletri (53303 inhabitants)
78 Km E of Guidonia Montecelio (88673 inhabitants)
78 Km SW of Pescara (121014 inhabitants)
79 Km NE of Latina (125985 inhabitants)
80 Km SW of Montesilvano (53738 inhabitants)
85 Km S of Teramo (54892 inhabitants)
90 Km E of Aprilia (73446 inhabitants)
97 Km E of Roma (2864731 inhabitants)
99 Km NE of Anzio (54211 inhabitants)
99 Km E of Pomezia (62966 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.3 2019-02-17
13:59:49
41.9 13.66 12 2019-02-17
14:09:37
Sala Sismica INGV-Roma 65628581
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-17 13:59:49 ± 0.05
Latitude 41.90 ± 0.00
Longitude 13.66 ± 0.00
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 65628581

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 399
Semi-minor axis of confidence ellipse (meter) 247
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 82
Circular confidence region, given by single value of horizontal uncertainty (meter) 400
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 65
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.03957
Epicentral distance of station farthest from the epicenter (degree) 0.55578
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 65628581
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-02-17 14:09:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CERA.HHZ. 2019-02-17T14:00:03.07 0.3 undecidable manual S 138 0.4047 92 -0.4 67
IV.GIGS.HHE. 2019-02-17T13:59:59.72 0.1 undecidable manual P 354 0.5558 91 -0.22 89
IV.LRP.EHZ. 2019-02-17T13:59:59.06 0.3 undecidable manual S 192 0.259 94 -0.09 72
IV.VCEL.EHE. 2019-02-17T13:59:59.45 0.1 undecidable manual P 15 0.5117 91 0.26 89
IV.MCI.EHE. 2019-02-17T13:59:58.18 0.1 undecidable manual P 164 0.4254 92 0.47 87
IV.PTQR.HHZ. 2019-02-17T13:59:58.24 0.3 undecidable manual S 303 0.2257 95 0.06 74
IV.GIUL.HHZ. 2019-02-17T13:59:58.11 0.1 undecidable manual P 221 0.4551 92 -0.11 92
IV.CERA.HHZ. 2019-02-17T13:59:57.29 0.1 undecidable manual P 138 0.4047 92 -0.07 95
IV.INTR.HHZ. 2019-02-17T13:59:57.73 0.1 undecidable manual S 59 0.2149 95 -0.11 100
IV.LPEL.HHZ. 2019-02-17T13:59:57.42 0.1 undecidable manual P 69 0.4173 92 -0.15 94
IT.OPI.HGZ. 2019-02-17T13:59:56.70 0.3 undecidable manual S 134 0.179 98 -0.09 75
IV.GUAR.HHE. 2019-02-17T13:59:55.20 0.6 undecidable manual P 248 0.2779 93 0.01 49
IV.PTQR.HHZ. 2019-02-17T13:59:54.37 0.1 undecidable manual P 303 0.2257 95 0.07 99
IV.INTR.HHZ. 2019-02-17T13:59:54.14 0.1 positive manual P 59 0.2149 95 0.03 98
IV.LRP.EHZ. 2019-02-17T13:59:54.88 0.1 undecidable manual P 192 0.259 94 0.02 99
IT.OPI.HGZ. 2019-02-17T13:59:53.65 0.1 undecidable manual P 134 0.179 98 0.15 97
IV.VVLD.HHZ. 2019-02-17T13:59:53.17 0.1 undecidable manual S 219 0.0396 154 -0.22 99
IV.VVLD.HHZ. 2019-02-17T13:59:51.67 0.1 undecidable manual P 219 0.0396 154 0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VVLD.HHE. ML:1.8 0.0009855 0.52 AML other m 2019-02-17T13:59:53.22
IV.VVLD.HHN. ML:1.8 0.000922 0.4 AML other m 2019-02-17T13:59:53.24
IV.INTR.HHN. ML:1.7 0.0002885 1.38 AML other m 2019-02-17T13:59:58.28
IV.INTR.HHE. ML:1.4 0.0001335 0.74 AML other m 2019-02-17T13:59:58.06
IV.LRP.EHN. ML:1.2 7.01E-5 0.3 AML other m 2019-02-17T14:00:00.43
IV.LRP.EHE. ML:1.1 6.2E-5 0.56 AML other m 2019-02-17T14:00:04.37
IV.LPEL.HHE. ML:1.4 6.75E-5 1.1 AML other m 2019-02-17T14:00:05.68
IV.GIUL.HHE. ML:1 2.42E-5 0.28 AML other m 2019-02-17T14:00:05.70
IV.GIUL.HHN. ML:1 2.52E-5 0.74 AML other m 2019-02-17T14:00:06.33
IV.CERA.HHN. ML:1.1 3.865E-5 0.5 AML other m 2019-02-17T14:00:06.64
IV.LPEL.HHN. ML:1.2 5.16E-5 0.12 AML other m 2019-02-17T14:00:06.75
IV.CERA.HHE. ML:1.2 4.3E-5 0.88 AML other m 2019-02-17T14:00:07.40
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download