Earthquake with magnitude of ML 2.1 on date 06-04-2009 and time 23:00:38 (Italy) in region 2 km NW Rocca di Cambio (AQ)

A magnitude ML 2.1 earthquake occured in region: 2 km NW Rocca di Cambio (AQ), on

  • 06-04-2009 21:00:38 (UTC)
  • 06-04-2009 23:00:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.2460, 13.4710 at 9 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Rocca di Cambio AQ 2 533 533
Ocre AQ 4 1167 1700
Fossa AQ 6 721 2421
Rocca di Mezzo AQ 6 1526 3947
Villa Sant'Angelo AQ 6 424 4371
Sant'Eusanio Forconese AQ 7 394 4765
San Demetrio ne' Vestini AQ 9 1854 6619
Fagnano Alto AQ 9 418 7037
Poggio Picenze AQ 10 1136 8173
Fontecchio AQ 11 369 8542
Prata d'Ansidonia AQ 12 496 9038
Lucoli AQ 12 1011 10049
Ovindoli AQ 13 1227 11276
L'Aquila AQ 13 69753 81029
Barisciano AQ 14 1828 82857
Tione degli Abruzzi AQ 14 310 83167
Tornimparte AQ 15 3187 86354
San Pio delle Camere AQ 16 661 87015
Massa d'Albe AQ 16 1476 88491
Caporciano AQ 17 230 88721
Santo Stefano di Sessanio AQ 18 111 88832
Carapelle Calvisio AQ 19 87 88919
Celano AQ 19 11017 99936
Magliano de' Marsi AQ 19 3690 103626
Castelvecchio Calvisio AQ 19 153 103779

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km SE of L'Aquila (69753 inhabitants)
50 Km SW of Teramo (54892 inhabitants)
59 Km W of Chieti (51815 inhabitants)
63 Km W of Montesilvano (53738 inhabitants)
64 Km NE of Tivoli (56533 inhabitants)
66 Km W of Pescara (121014 inhabitants)
67 Km E of Guidonia Montecelio (88673 inhabitants)
76 Km E of Terni (111501 inhabitants)
85 Km NE of Velletri (53303 inhabitants)
90 Km E of Roma (2864731 inhabitants)
98 Km NE of Latina (125985 inhabitants)
99 Km NE of Aprilia (73446 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 2.1 2009-04-06
21:00:38
42.246 13.471 9 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 763009
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-06 21:00:38 ± 0.12
Latitude 42.2460 ± 0.0072
Longitude 13.4710 ± 0.0097
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 763009

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 803
Semi-minor axis of confidence ellipse (meter) 616
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 244
Circular confidence region, given by single value of horizontal uncertainty (meter) 1131.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 70
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.46
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.46945
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 9
Magnitude information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 763009
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:25:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MNS.HHN. 2009-04-06T21:02:23.53 10.0 undecidable manual Pg 0 0 0
.INTR.---. 2009-04-06T21:00:54.04 0.6 undecidable manual Sg 126 44.1225 0.559 44
.FIAM.---. 2009-04-06T21:00:49.15 0.6 undecidable manual Sg 275 29.1486 -0.288 48
IV.PTQR.SHZ. 2009-04-06T21:00:48.32 0.3 undecidable manual Sg 193 25.5522 0.085 76
.CERT.---. 2009-04-06T21:00:48.28 0.1 undecidable manual Pg 231 52.1034 -0.227 94
.INTR.---. 2009-04-06T21:00:46.98 0.3 undecidable manual Pg 126 44.1225 -0.308 70
.VVLD.---. 2009-04-06T21:00:46.93 0.3 undecidable manual Pg 163 43.623 -0.272 71
IV.VCEL.EHN. 2009-04-06T21:00:45.88 0.3 undecidable manual Pg 61 34.4433 0.086 75
.CAMP.---. 2009-04-06T21:00:45.57 0.3 undecidable manual Pg 351 32.5452 0.07 75
.FIAM.---. 2009-04-06T21:00:44.72 0.1 undecidable manual Pg 275 29.1486 -0.231 98
IV.PTQR.SHZ. 2009-04-06T21:00:44.88 0.3 undecidable manual Pg 193 25.5522 0.627 66
MN.AQU.HHZ. 2009-04-06T21:00:44.26 0.3 undecidable manual Sg 335 13.2756 -0.152 77
IV.FAGN.HHN. 2009-04-06T21:00:43.19 0.3 undecidable manual Sg 77 9.4794 -0.206 76
MN.AQU.HHZ. 2009-04-06T21:00:42.98 0.1 undecidable manual Pg 335 13.2756 0.929 80
IV.FAGN.HHN. 2009-04-06T21:00:41.17 0.1 undecidable manual Pg 77 9.4794 -0.289 100
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