Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 16-02-2009 and time 22:38:54 (Italy) in region 1 km NW Torri in Sabina (RI)

A magnitude ML 1.5 earthquake occured in region: 1 km NW Torri in Sabina (RI), on

  • 16-02-2009 21:38:54 (UTC)
  • 16-02-2009 22:38:54 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.3630, 12.6290 at 10 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Torri in Sabina RI 1 1256 1256
Montebuono RI 3 883 2139
Tarano RI 3 1444 3583
Vacone RI 3 256 3839
Casperia RI 4 1246 5085
Selci RI 5 1106 6191
Montasola RI 5 395 6586
Cantalupo in Sabina RI 6 1685 8271
Calvi dell'Umbria TR 7 1856 10127
Cottanello RI 7 563 10690
Collevecchio RI 7 1577 12267
Configni RI 7 633 12900
Roccantica RI 7 563 13463
Forano RI 8 3179 16642
Stimigliano RI 9 2328 18970
Poggio Catino RI 9 1341 20311
Poggio Mirteto RI 12 6315 26626
Magliano Sabina RI 12 3774 30400
Filacciano RM 12 477 30877
Ponzano Romano RM 12 1155 32032
Contigliano RI 13 3783 35815
Monte San Giovanni in Sabina RI 13 714 36529
Torrita Tiberina RM 14 1089 37618
Montopoli di Sabina RI 14 4210 41828
Otricoli TR 14 1869 43697
Nazzano RM 15 1436 45133
Salisano RI 15 567 45700
Greccio RI 15 1558 47258
Stroncone TR 15 4917 52175
Mompeo RI 16 530 52705
Sant'Oreste RM 17 3687 56392
Castelnuovo di Farfa RI 17 1059 57451
Montenero Sabino RI 18 299 57750
Gallese VT 18 2849 60599
Civitella San Paolo RM 19 2066 62665
Casaprota RI 19 744 63409
Fara in Sabina RI 19 13742 77151
Toffia RI 20 1058 78209
Civita Castellana VT 20 16491 94700
Colli sul Velino RI 20 533 95233
Rieti RI 20 47698 142931
Narni TR 20 19785 162716

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km S of Terni (111501 inhabitants)
41 Km N of Guidonia Montecelio (88673 inhabitants)
43 Km E of Viterbo (67173 inhabitants)
47 Km NW of Tivoli (56533 inhabitants)
54 Km N of Roma (2864731 inhabitants)
63 Km W of L'Aquila (69753 inhabitants)
66 Km S of Foligno (57155 inhabitants)
73 Km NE of Fiumicino (78395 inhabitants)
75 Km E of Civitavecchia (52991 inhabitants)
76 Km N of Velletri (53303 inhabitants)
78 Km N of Pomezia (62966 inhabitants)
85 Km S of Perugia (166134 inhabitants)
85 Km N of Aprilia (73446 inhabitants)
94 Km W of Teramo (54892 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 		Md 2.0
ML 1.5 		2009-02-16
21:38:54		 42.363 12.629 10 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 744729
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-02-16 21:38:54 ± 0.43
Latitude 42.3630 ± 0.0243
Longitude 12.6290 ± 0.0122
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 744729

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2684
Semi-minor axis of confidence ellipse (meter) 1053
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 3
Circular confidence region, given by single value of horizontal uncertainty (meter) 2879.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 273
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.38671
Epicentral distance of station farthest from the epicenter (degree) 0.66730
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 744729
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:05:00

Md:2.0

Field Value
Value 2.0
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 744729
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:05:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MGAB.HHN. 2009-02-16T21:39:17.37 0.6 undecidable manual Sg 325 74.0703 0.329 46
IV.NRCA.HHE. 2009-02-16T21:39:14.57 0.3 undecidable manual Sg 37 65.49 -0.171 73
IV.LNSS.HHE. 2009-02-16T21:39:08.83 0.6 undecidable manual Sg 52 42.9237 0.128 51
IV.MGAB.HHN. 2009-02-16T21:39:07.28 0.3 undecidable manual Pg 325 74.0703 -0.255 70
IV.NRCA.HHE. 2009-02-16T21:39:06.04 0.3 undecidable manual Pg 37 65.49 -0.171 73
IV.LNSS.HHE. 2009-02-16T21:39:02.93 0.1 undecidable manual Pg 52 42.9237 0.208 100
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