Earthquake with magnitude of ML 1.7 on date 09-04-2009 and time 00:54:51 (Italy) in region 2 km NE Fossa (AQ)

A magnitude ML 1.7 earthquake occured in region: 2 km NE Fossa (AQ), on

  • 08-04-2009 22:54:51 (UTC)
  • 09-04-2009 00:54:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3090, 13.5050 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 2 721 721
Sant'Eusanio Forconese AQ 3 394 1115
Poggio Picenze AQ 3 1136 2251
Ocre AQ 4 1167 3418
San Demetrio ne' Vestini AQ 5 1854 5272
Villa Sant'Angelo AQ 5 424 5696
Barisciano AQ 7 1828 7524
Rocca di Cambio AQ 8 533 8057
Fagnano Alto AQ 8 418 8475
Prata d'Ansidonia AQ 9 496 8971
L'Aquila AQ 10 69753 78724
Rocca di Mezzo AQ 11 1526 80250
Fontecchio AQ 12 369 80619
Santo Stefano di Sessanio AQ 12 111 80730
San Pio delle Camere AQ 13 661 81391
Lucoli AQ 14 1011 82402
Carapelle Calvisio AQ 15 87 82489
Caporciano AQ 15 230 82719
Castelvecchio Calvisio AQ 15 153 82872
Calascio AQ 16 137 83009
Tione degli Abruzzi AQ 16 310 83319
Tornimparte AQ 17 3187 86506
Castel del Monte AQ 19 413 86919
Ovindoli AQ 20 1227 88146

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km E of L'Aquila (69753 inhabitants)
42 Km SW of Teramo (54892 inhabitants)
55 Km W of Chieti (51815 inhabitants)
58 Km W of Montesilvano (53738 inhabitants)
61 Km W of Pescara (121014 inhabitants)
70 Km NE of Tivoli (56533 inhabitants)
73 Km E of Guidonia Montecelio (88673 inhabitants)
76 Km E of Terni (111501 inhabitants)
92 Km NE of Velletri (53303 inhabitants)
96 Km E of Roma (2864731 inhabitants)
97 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
ML 1.7 2009-04-08
22:54:51
42.309 13.505 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 776399
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-08 22:54:51 ± 0.05
Latitude 42.3090 ± 0.0036
Longitude 13.5050 ± 0.0049
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 776399

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 414
Semi-minor axis of confidence ellipse (meter) 263
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 223
Circular confidence region, given by single value of horizontal uncertainty (meter) 565.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 58
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.64032
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 15
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 776399
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:41:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.POFI.HHN. 2009-04-08T22:55:13.75 10.0 undecidable manual Sg 0 0 0
IV.NRCA.HHZ. 2009-04-08T22:55:12.63 0.6 undecidable manual Sg 331 66.378 0.523 41
IV.POFI.HHN. 2009-04-08T22:55:09.39 10.0 undecidable manual Pg 0 0 0
IV.INTR.HHZ. 2009-04-08T22:55:07.44 0.6 undecidable manual Sg 135 46.62 0.61 41
IV.GUAR.HHN. 2009-04-08T22:55:05.15 10.0 undecidable manual Pg 0 0 0
IV.SDI.SHZ. 2009-04-08T22:55:04.39 0.6 undecidable manual Pg 159 71.0733 0.165 44
IV.TERO.HHN. 2009-04-08T22:55:03.65 0.6 undecidable manual Sg 13 35.742 -0.285 45
IV.NRCA.HHZ. 2009-04-08T22:55:03.49 0.1 undecidable manual Pg 331 66.378 -0.006 91
IV.MNS.HHZ. 2009-04-08T22:55:03.99 0.6 undecidable manual Pg 277 68.0763 0.229 43
IV.VCEL.EHZ. 2009-04-08T22:55:02.01 0.6 undecidable manual Sg 71 29.1486 -0.156 47
IV.FIAM.HHE. 2009-04-08T22:55:02.66 0.6 undecidable manual Sg 262 32.1456 -0.321 45
IV.CERT.HHN. 2009-04-08T22:55:02.43 0.3 undecidable manual Pg 227 58.6968 0.109 68
IV.LNSS.HHN. 2009-04-08T22:55:01.12 0.6 undecidable manual Pg 311 50.1165 0.128 46
IV.CAMP.HHZ. 2009-04-08T22:55:01.26 0.3 undecidable manual Sg 343 26.3514 -0.171 71
IV.INTR.HHZ. 2009-04-08T22:55:00.55 0.1 undecidable manual Pg 135 46.62 0.098 92
IV.VVLD.HHZ. 2009-04-08T22:55:00.65 0.3 undecidable manual Pg 169 49.7169 -0.283 66
IV.FIAM.HHE. 2009-04-08T22:54:58.13 0.1 undecidable manual Pg 262 32.1456 -0.093 95
IV.PTQR.SHZ. 2009-04-08T22:54:58.15 0.1 undecidable manual Pg 195 32.9448 -0.207 93
IV.TERO.HHN. 2009-04-08T22:54:58.65 0.1 undecidable manual Pg 13 35.742 -0.129 94
IV.VCEL.EHZ. 2009-04-08T22:54:57.89 0.1 undecidable manual Pg 71 29.1486 0.135 95
IV.T0104.EHZ. 2009-04-08T22:54:57.97 0.3 undecidable manual Sg 292 14.7741 0.007 75
IV.CAMP.HHZ. 2009-04-08T22:54:57.35 0.1 undecidable manual Pg 343 26.3514 0.02 97
MN.AQU.HHZ. 2009-04-08T22:54:56.61 0.1 undecidable manual Sg 300 9.7791 -0.024 100
IV.FAGN.HHZ. 2009-04-08T22:54:55.98 0.3 undecidable manual Sg 127 8.0808 -0.257 72
IV.T0104.EHZ. 2009-04-08T22:54:55.44 0.3 undecidable manual Pg 292 14.7741 0.108 73
IV.FAGN.HHZ. 2009-04-08T22:54:54.39 0.1 undecidable manual Pg 127 8.0808 0.058 100
MN.AQU.HHZ. 2009-04-08T22:54:54.75 0.1 undecidable manual Pg 300 9.7791 0.187 97
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