Earthquake with magnitude of ML 2.2 on date 07-04-2009 and time 01:20:24 (Italy) in region 5 km NW L'Aquila (AQ)

A magnitude ML 2.2 earthquake occured in region: 5 km NW L'Aquila (AQ), on

  • 06-04-2009 23:20:24 (UTC)
  • 07-04-2009 01:20:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3820, 13.3480 at 11 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 5 69753 69753
Scoppito AQ 8 3727 73480
Pizzoli AQ 8 4326 77806
Barete AQ 10 737 78543
Lucoli AQ 10 1011 79554
Tornimparte AQ 11 3187 82741
Cagnano Amiterno AQ 13 1369 84110
Ocre AQ 15 1167 85277
Fossa AQ 15 721 85998
Capitignano AQ 16 665 86663
Poggio Picenze AQ 17 1136 87799
Sant'Eusanio Forconese AQ 18 394 88193
Montereale AQ 18 2581 90774
Campotosto AQ 20 542 91316
Villa Sant'Angelo AQ 20 424 91740
Rocca di Cambio AQ 20 533 92273

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km NW of L'Aquila (69753 inhabitants)
43 Km SW of Teramo (54892 inhabitants)
61 Km E of Terni (111501 inhabitants)
65 Km NE of Tivoli (56533 inhabitants)
66 Km NE of Guidonia Montecelio (88673 inhabitants)
68 Km W of Chieti (51815 inhabitants)
68 Km W of Montesilvano (53738 inhabitants)
72 Km W of Pescara (121014 inhabitants)
83 Km SE of Foligno (57155 inhabitants)
90 Km NE of Roma (2864731 inhabitants)
90 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
ML 2.2 2009-04-06
23:20:24
42.382 13.348 11 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 764019
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-06 23:20:24 ± 0.16
Latitude 42.3820 ± 0.0090
Longitude 13.3480 ± 0.0146
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 764019

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1284
Semi-minor axis of confidence ellipse (meter) 780
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 118
Circular confidence region, given by single value of horizontal uncertainty (meter) 1562.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 140
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.57
Epicentral distance of station closest to the epicenter (degree) 0.04856
Epicentral distance of station farthest from the epicenter (degree) 0.55308
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 764019
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:27:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PTQR.SHZ. 2009-04-06T23:20:37.34 0.3 undecidable manual Sg 174 40.1265 -0.452 67
.CERT.HHN. 2009-04-06T23:20:35.69 0.6 undecidable manual Pg 212 56.6988 0.936 36
.INTR.HHN. 2009-04-06T23:20:35.64 0.3 undecidable manual Pg 132 61.3941 0.153 69
.TERO.HHN. 2009-04-06T23:20:35.92 0.3 undecidable manual Sg 38 33.9438 -0.23 71
.VCEL.EHE. 2009-04-06T23:20:33.07 0.3 undecidable manual Pg 88 40.3263 0.831 58
.CAMP.---. 2009-04-06T23:20:32.21 0.6 undecidable manual Sg 16 17.871 0.422 47
IV.FAGN.HHE. 2009-04-06T23:20:32.96 0.6 undecidable manual Sg 124 23.1546 -0.316 48
IV.PTQR.SHZ. 2009-04-06T23:20:32.07 0.3 undecidable manual Pg 174 40.1265 -0.132 72
.FIAM.HHN. 2009-04-06T23:20:32.92 0.3 undecidable manual Sg 236 22.755 -0.24 73
.TERO.HHN. 2009-04-06T23:20:31.28 0.3 undecidable manual Pg 38 33.9438 0.027 74
.FIAM.HHN. 2009-04-06T23:20:29.71 0.1 undecidable manual Pg 236 22.755 0.184 98
IV.FAGN.HHE. 2009-04-06T23:20:29.69 0.3 undecidable manual Pg 124 23.1546 0.093 75
MN.AQU.HHZ. 2009-04-06T23:20:28.52 0.3 undecidable manual Sg 125 5.3946 -0.214 75
MN.AQU.HHZ. 2009-04-06T23:20:27.20 0.1 undecidable manual Pg 125 5.3946 0.23 100
.CAMP.---. 2009-04-06T23:20:27.64 0.3 undecidable manual Pg 16 17.871 -1.094 54
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