Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 12-10-2009 and time 12:48:02 (Italy) in region 5 km NW L'Aquila (AQ)

A magnitude ML 1.5 earthquake occured in region: 5 km NW L'Aquila (AQ), on

  • 12-10-2009 10:48:02 (UTC)
  • 12-10-2009 12:48:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3950, 13.3810 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.

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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 5 69753 69753
Pizzoli AQ 8 4326 74079
Barete AQ 10 737 74816
Scoppito AQ 11 3727 78543
Lucoli AQ 12 1011 79554
Tornimparte AQ 13 3187 82741
Fossa AQ 14 721 83462
Ocre AQ 14 1167 84629
Cagnano Amiterno AQ 15 1369 85998
Capitignano AQ 16 665 86663
Poggio Picenze AQ 16 1136 87799
Sant'Eusanio Forconese AQ 17 394 88193
Campotosto AQ 18 542 88735
Montereale AQ 18 2581 91316
Barisciano AQ 19 1828 93144
San Demetrio ne' Vestini AQ 19 1854 94998
Villa Sant'Angelo AQ 19 424 95422
Crognaleto TE 19 1297 96719
Rocca di Cambio AQ 20 533 97252

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km NW of L'Aquila (69753 inhabitants)
40 Km SW of Teramo (54892 inhabitants)
63 Km E of Terni (111501 inhabitants)
65 Km W of Montesilvano (53738 inhabitants)
65 Km W of Chieti (51815 inhabitants)
68 Km NE of Tivoli (56533 inhabitants)
69 Km W of Pescara (121014 inhabitants)
69 Km NE of Guidonia Montecelio (88673 inhabitants)
83 Km SE of Foligno (57155 inhabitants)
93 Km NE of Roma (2864731 inhabitants)
93 Km NE of Velletri (53303 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 1.5 		2009-10-12
10:48:02		 42.395 13.381 10 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 978489
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-10-12 10:48:02 ± 0.13
Latitude 42.3950 ± 0.0072
Longitude 13.3810 ± 0.0110
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 978489

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 814
Semi-minor axis of confidence ellipse (meter) 778
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 241
Circular confidence region, given by single value of horizontal uncertainty (meter) 1204.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 91
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.52
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.48024
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 978489
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 18:43:01

Md:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 978489
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 18:43:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2009-10-12T10:48:20.53 0.1 undecidable manual Sg 336 53.3022 0.629 82
IV.VCEL.EHZ. 2009-10-12T10:48:16.20 0.1 undecidable manual Sg 90 37.629 0.467 89
IV.SMA1.EHZ. 2009-10-12T10:48:13.34 0.1 undecidable manual Sg 352 26.3514 0.749 82
IV.SBPO.HHN. 2009-10-12T10:48:13.86 10.0 undecidable manual Pg 0 0 0
IV.TERO.HHE. 2009-10-12T10:48:13.42 0.1 undecidable manual Sg 36 31.1466 -0.57 87
IV.NRCA.HHZ. 2009-10-12T10:48:12.55 0.1 undecidable manual Pg 336 53.3022 -0.153 92
IV.FIAM.HHN. 2009-10-12T10:48:12.78 0.1 undecidable manual Sg 237 25.8519 0.36 93
IV.FAGN.HHE. 2009-10-12T10:48:11.88 0.1 undecidable manual Sg 131 21.9669 0.702 84
IV.LNSS.HHN. 2009-10-12T10:48:10.08 0.6 undecidable manual Pg 310 36.1416 0.013 49
IV.VCEL.EHZ. 2009-10-12T10:48:10.38 0.1 undecidable manual Pg 90 37.629 0.082 96
IV.CAMP.HHE. 2009-10-12T10:48:09.51 0.1 undecidable manual Sg 8 15.7731 0.261 97
IV.FIAM.HHN. 2009-10-12T10:48:08.38 0.1 undecidable manual Pg 237 25.8519 -0.006 100
IV.TERO.HHE. 2009-10-12T10:48:08.57 0.1 undecidable manual Pg 36 31.1466 -0.722 82
IV.FAGN.HHE. 2009-10-12T10:48:07.31 0.1 undecidable manual Pg 131 21.9669 -0.358 94
IV.SMA1.EHZ. 2009-10-12T10:48:07.84 0.1 undecidable manual Pg 352 26.3514 -0.643 85
IV.T0104.EHZ. 2009-10-12T10:48:06.25 0.1 undecidable manual Sg 222 5.2947 -0.385 96
IV.CAMP.HHE. 2009-10-12T10:48:06.46 0.1 undecidable manual Pg 8 15.7731 -0.093 100
IV.T0104.EHZ. 2009-10-12T10:48:04.82 0.1 undecidable manual Pg 222 5.2947 -0.224 99
IV.CRAC.EHN. 2009-10-12T10:47:47.31 10.0 undecidable manual Pg 0 0 0
IV.ORI.HHE. 2009-10-12T10:47:43.02 10.0 undecidable manual Pg 0 0 0
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