Earthquake with magnitude of ML 1.3 on date 12-05-2009 and time 00:53:24 (Italy) in region 6 km E L'Aquila (AQ)

A magnitude ML 1.3 earthquake occured in region: 6 km E L'Aquila (AQ), on

  • 11-05-2009 22:53:24 (UTC)
  • 12-05-2009 00:53:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3740, 13.4620 at 6 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
L'Aquila AQ 6 69753 69753
Poggio Picenze AQ 9 1136 70889
Fossa AQ 9 721 71610
Ocre AQ 10 1167 72777
Sant'Eusanio Forconese AQ 11 394 73171
Barisciano AQ 12 1828 74999
San Demetrio ne' Vestini AQ 12 1854 76853
Villa Sant'Angelo AQ 13 424 77277
Lucoli AQ 14 1011 78288
Pizzoli AQ 15 4326 82614
Rocca di Cambio AQ 15 533 83147
Santo Stefano di Sessanio AQ 16 111 83258
Prata d'Ansidonia AQ 16 496 83754
Tornimparte AQ 16 3187 86941
Fagnano Alto AQ 16 418 87359
Scoppito AQ 17 3727 91086
Barete AQ 17 737 91823
Pietracamela TE 18 271 92094
San Pio delle Camere AQ 19 661 92755
Rocca di Mezzo AQ 19 1526 94281
Crognaleto TE 20 1297 95578
Fontecchio AQ 20 369 95947
Calascio AQ 20 137 96084

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km E of L'Aquila (69753 inhabitants)
38 Km SW of Teramo (54892 inhabitants)
58 Km W of Chieti (51815 inhabitants)
59 Km W of Montesilvano (53738 inhabitants)
63 Km W of Pescara (121014 inhabitants)
70 Km E of Terni (111501 inhabitants)
71 Km NE of Tivoli (56533 inhabitants)
73 Km NE of Guidonia Montecelio (88673 inhabitants)
90 Km SE of Foligno (57155 inhabitants)
95 Km NE of Velletri (53303 inhabitants)
97 Km NE of Roma (2864731 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 1.5
ML 1.3
2009-05-11
22:53:24
42.374 13.462 6 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 862009
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-05-11 22:53:24 ± 0.34
Latitude 42.3740 ± 0.0144
Longitude 13.4620 ± 0.0097
Depth (km) 6 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 862009

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1334
Semi-minor axis of confidence ellipse (meter) 1107
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 357
Circular confidence region, given by single value of horizontal uncertainty (meter) 1788.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 185
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.04946
Epicentral distance of station farthest from the epicenter (degree) 0.27969
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.6
Num. used stations
Type of magnitude ML
Reference to an origin 862009
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 16:21:46

Md:1.5

Field Value
Value 1.5
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 862009
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 16:21:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VCEL.EHE. 2009-05-11T22:53:35.25 0.1 undecidable manual Sg 86 31.0467 -0.038 96
IV.VCEL.EHE. 2009-05-11T22:53:30.76 0.1 undecidable manual Pg 86 31.0467 0.099 95
IV.FAGN.HHZ. 2009-05-11T22:53:30.38 0.1 undecidable manual Sg 140 15.6732 0.293 93
IV.T0104.EHE. 2009-05-11T22:53:28.30 0.1 undecidable manual Sg 261 10.2786 -0.085 98
IV.FAGN.HHZ. 2009-05-11T22:53:27.14 0.1 undecidable manual Pg 140 15.6732 -0.517 89
IV.T0104.EHE. 2009-05-11T22:53:26.98 0.1 undecidable manual Pg 261 10.2786 0.305 94
MN.AQU.HHZ. 2009-05-11T22:53:26.98 0.1 undecidable manual Sg 245 5.4945 -0.039 100
MN.AQU.HHZ. 2009-05-11T22:53:25.82 0.1 undecidable manual Pg 245 5.4945 -0.063 100
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