Earthquake with magnitude of ML 1.6 on date 07-04-2009 and time 04:21:36 (Italy) in region E Fossa (AQ)

A magnitude ML 1.6 earthquake occured in region: E Fossa (AQ), on

  • 07-04-2009 02:21:36 (UTC)
  • 07-04-2009 04:21:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.2930, 13.4920 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Fossa AQ 0 721 721
Ocre AQ 2 1167 1888
Sant'Eusanio Forconese AQ 3 394 2282
Villa Sant'Angelo AQ 5 424 2706
Poggio Picenze AQ 5 1136 3842
San Demetrio ne' Vestini AQ 6 1854 5696
Rocca di Cambio AQ 6 533 6229
Fagnano Alto AQ 8 418 6647
Barisciano AQ 9 1828 8475
Rocca di Mezzo AQ 10 1526 10001
Prata d'Ansidonia AQ 10 496 10497
L'Aquila AQ 10 69753 80250
Fontecchio AQ 12 369 80619
Lucoli AQ 13 1011 81630
San Pio delle Camere AQ 14 661 82291
Santo Stefano di Sessanio AQ 14 111 82402
Tione degli Abruzzi AQ 15 310 82712
Caporciano AQ 16 230 82942
Tornimparte AQ 16 3187 86129
Carapelle Calvisio AQ 16 87 86216
Castelvecchio Calvisio AQ 16 153 86369
Calascio AQ 17 137 86506
Ovindoli AQ 18 1227 87733

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km SE of L'Aquila (69753 inhabitants)
44 Km SW of Teramo (54892 inhabitants)
56 Km W of Chieti (51815 inhabitants)
59 Km W of Montesilvano (53738 inhabitants)
62 Km W of Pescara (121014 inhabitants)
68 Km NE of Tivoli (56533 inhabitants)
71 Km E of Guidonia Montecelio (88673 inhabitants)
76 Km E of Terni (111501 inhabitants)
90 Km NE of Velletri (53303 inhabitants)
94 Km E of Roma (2864731 inhabitants)
98 Km SE of Foligno (57155 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 2.1
ML 1.6
2009-04-07
02:21:36
42.293 13.492 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 764909
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-07 02:21:36 ± 0.14
Latitude 42.2930 ± 0.0108
Longitude 13.4920 ± 0.0109
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 764909

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1208
Semi-minor axis of confidence ellipse (meter) 782
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 19
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) 116
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.56
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.62863
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 764909
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:28:05

Md:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 764909
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:28:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.OC9.EHN. 2009-04-07T02:22:00.07 10.0 undecidable manual Pg 0 0 0
IV.SDI.SHZ. 2009-04-07T02:21:58.37 0.3 undecidable manual Sg 158 69.7746 0.774 55
IV.GUAR.HHE. 2009-04-07T02:21:53.89 0.3 undecidable manual Sg 195 57.2982 -0.353 65
IV.INTR.HHZ. 2009-04-07T02:21:51.25 0.3 undecidable manual Sg 132 46.1205 -0.019 71
.VVLD.HHE. 2009-04-07T02:21:51.37 0.6 undecidable manual Sg 167 48.2184 -0.454 43
IV.SDI.SHZ. 2009-04-07T02:21:49.61 0.3 undecidable manual Pg 158 69.7746 1.004 50
.FIAM.---. 2009-04-07T02:21:47.16 0.3 undecidable manual Sg 265 30.8469 -0.044 72
IV.GUAR.HHE. 2009-04-07T02:21:47.58 0.3 undecidable manual Pg 195 57.2982 0.91 53
.PTQR.---. 2009-04-07T02:21:46.67 0.3 undecidable manual Sg 194 31.0467 -0.565 64
.VCEL.EHN. 2009-04-07T02:21:46.18 0.6 undecidable manual Sg 68 30.747 -0.977 36
.VVLD.HHE. 2009-04-07T02:21:45.01 0.6 undecidable manual Pg 167 48.2184 -0.265 45
IV.INTR.HHZ. 2009-04-07T02:21:44.95 0.3 undecidable manual Pg 132 46.1205 -0.003 71
.VCEL.EHN. 2009-04-07T02:21:42.94 0.3 undecidable manual Pg 68 30.747 0.361 68
.PTQR.---. 2009-04-07T02:21:42.33 0.3 undecidable manual Pg 194 31.0467 -0.295 69
.FIAM.---. 2009-04-07T02:21:42.62 0.1 undecidable manual Pg 265 30.8469 0.013 97
.AQU.HHZ. 2009-04-07T02:21:41.26 0.3 undecidable manual Sg 312 9.9789 -0.046 75
IV.FAGN.HHZ. 2009-04-07T02:21:40.60 0.3 undecidable manual Sg 112 8.0808 -0.275 72
.AQU.HHZ. 2009-04-07T02:21:39.25 0.1 undecidable manual Pg 312 9.9789 0.049 100
IV.FAGN.HHZ. 2009-04-07T02:21:38.99 0.3 undecidable manual Pg 112 8.0808 0.038 75
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