Earthquake with magnitude of ML 2.3 on date 06-04-2009 and time 22:59:16 (Italy) in region 1 km NE Rocca di Mezzo (AQ)

A magnitude ML 2.3 earthquake occured in region: 1 km NE Rocca di Mezzo (AQ), on

  • 06-04-2009 20:59:16 (UTC)
  • 06-04-2009 22:59:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.2170, 13.5260 at 7 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 Mezzo AQ 1 1526 1526
Rocca di Cambio AQ 4 533 2059
Fagnano Alto AQ 6 418 2477
Villa Sant'Angelo AQ 6 424 2901
Fontecchio AQ 7 369 3270
Sant'Eusanio Forconese AQ 8 394 3664
San Demetrio ne' Vestini AQ 9 1854 5518
Ocre AQ 9 1167 6685
Fossa AQ 9 721 7406
Tione degli Abruzzi AQ 9 310 7716
Ovindoli AQ 9 1227 8943
Prata d'Ansidonia AQ 10 496 9439
Poggio Picenze AQ 12 1136 10575
Caporciano AQ 13 230 10805
San Pio delle Camere AQ 13 661 11466
Barisciano AQ 14 1828 13294
Secinaro AQ 15 359 13653
Celano AQ 15 11017 24670
Carapelle Calvisio AQ 16 87 24757
Aielli AQ 16 1475 26232
Massa d'Albe AQ 16 1476 27708
Acciano AQ 17 327 28035
Navelli AQ 17 554 28589
Castelvecchio Calvisio AQ 17 153 28742
Santo Stefano di Sessanio AQ 17 111 28853
Lucoli AQ 18 1011 29864
Gagliano Aterno AQ 18 254 30118
Cerchio AQ 18 1635 31753
L'Aquila AQ 18 69753 101506
Calascio AQ 19 137 101643
Molina Aterno AQ 19 386 102029
Collarmele AQ 19 894 102923
Magliano de' Marsi AQ 19 3690 106613
Castelvecchio Subequo AQ 19 982 107595

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km SE of L'Aquila (69753 inhabitants)
51 Km S of Teramo (54892 inhabitants)
55 Km W of Chieti (51815 inhabitants)
61 Km SW of Montesilvano (53738 inhabitants)
63 Km W of Pescara (121014 inhabitants)
66 Km E of Tivoli (56533 inhabitants)
70 Km E of Guidonia Montecelio (88673 inhabitants)
82 Km E of Terni (111501 inhabitants)
85 Km NE of Velletri (53303 inhabitants)
93 Km E of Roma (2864731 inhabitants)
98 Km NE of Latina (125985 inhabitants)
100 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 2.3 2009-04-06
20:59:16
42.217 13.526 7 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 762959
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-06 20:59:16 ± 0.19
Latitude 42.2170 ± 0.0081
Longitude 13.5260 ± 0.0146
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 762959

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1135
Semi-minor axis of confidence ellipse (meter) 560
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 119
Circular confidence region, given by single value of horizontal uncertainty (meter) 1500.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 165
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.54
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.41009
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 6
Magnitude information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.0
Num. used stations
Type of magnitude ML
Reference to an origin 762959
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:25:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ORI.EHE. 2009-04-06T21:00:03.16 10.0 undecidable manual Pg 0 0 0
.TERO.---. 2009-04-06T20:59:31.46 0.6 undecidable manual Sg 8 45.5211 -0.503 45
IV.GUAR.HHE. 2009-04-06T20:59:30.53 10.0 undecidable manual Pg 0 0 0
.CAMP.---. 2009-04-06T20:59:29.78 0.6 undecidable manual Sg 345 36.6411 0.252 45
.FIAM.---. 2009-04-06T20:59:29.06 0.6 undecidable manual Sg 280 34.0437 0.415 45
.VCEL.EHE. 2009-04-06T20:59:25.36 10.0 undecidable manual Pg 0 0 0
IV.PTQR.SHZ. 2009-04-06T20:59:25.13 0.3 undecidable manual Sg 206 23.9538 -0.116 73
IV.VVLD.HHE. 2009-04-06T20:59:25.87 10.0 undecidable manual Pg 0 0 0
.TERO.---. 2009-04-06T20:59:25.22 0.6 undecidable manual Pg 8 45.5211 -0.229 47
.CAMP.---. 2009-04-06T20:59:24.99 0.6 undecidable manual Pg 345 36.6411 0.95 34
.FIAM.---. 2009-04-06T20:59:23.98 0.6 undecidable manual Pg 280 34.0437 0.443 44
.AQU.HHZ. 2009-04-06T20:59:22.69 0.3 undecidable manual Sg 326 18.3705 -0.715 59
IV.PTQR.SHZ. 2009-04-06T20:59:21.23 0.3 undecidable manual Pg 206 23.9538 -0.344 70
IV.FAGN.HHZ. 2009-04-06T20:59:20.24 0.3 undecidable manual Sg 41 7.1928 0.116 76
.AQU.HHZ. 2009-04-06T20:59:20.54 0.3 undecidable manual Pg 326 18.3705 0.034 75
IV.FAGN.HHZ. 2009-04-06T20:59:18.77 0.1 undecidable manual Pg 41 7.1928 0.16 100
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
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