Earthquake with magnitude of ML 2.0 on date 07-04-2009 and time 22:28:57 (UTC) in region 11 km N L'Aquila (AQ)

A magnitude ML 2.0 earthquake occured in region: 11 km N L'Aquila (AQ), on

  • 07-04-2009 22:28:57 (UTC)
  • 08-04-2009 00:28:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4480, 13.4370 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 11 69753 69753
Pizzoli AQ 12 4326 74079
Crognaleto TE 12 1297 75376
Barete AQ 13 737 76113
Pietracamela TE 13 271 76384
Campotosto AQ 13 542 76926
Capitignano AQ 14 665 77591
Fano Adriano TE 14 296 77887
Poggio Picenze AQ 17 1136 79023
Scoppito AQ 17 3727 82750
Cagnano Amiterno AQ 17 1369 84119
Fossa AQ 18 721 84840
Montereale AQ 18 2581 87421
Ocre AQ 18 1167 88588
Barisciano AQ 18 1828 90416
Sant'Eusanio Forconese AQ 19 394 90810
Lucoli AQ 19 1011 91821
Isola del Gran Sasso d'Italia TE 20 4773 96594

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km N of L'Aquila (69753 inhabitants)
32 Km SW of Teramo (54892 inhabitants)
59 Km W of Montesilvano (53738 inhabitants)
61 Km W of Chieti (51815 inhabitants)
64 Km W of Pescara (121014 inhabitants)
66 Km E of Terni (111501 inhabitants)
75 Km NE of Tivoli (56533 inhabitants)
77 Km NE of Guidonia Montecelio (88673 inhabitants)
82 Km SE of Foligno (57155 inhabitants)
100 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
ML 2.0 2009-04-07
22:28:57
42.448 13.437 11 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 770169
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-07 22:28:57 ± 0.13
Latitude 42.4480 ± 0.0072
Longitude 13.4370 ± 0.0098
Depth (km) 11 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 770169

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 797
Semi-minor axis of confidence ellipse (meter) 633
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 94
Circular confidence region, given by single value of horizontal uncertainty (meter) 1131.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 160
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.39
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.64212
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 7
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.0
Num. used stations
Type of magnitude ML
Reference to an origin 770169
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:34:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHN. 2009-04-07T22:29:19.43 0.6 undecidable manual Sg 337 71.2731 0.457 42
.CERT.HHZ. 2009-04-07T22:29:18.28 10.0 undecidable manual Pg 0 0 0
IV.PTQR.SHZ. 2009-04-07T22:29:15.00 10.0 undecidable manual Pg 0 0 0
IV.NRCA.HHE. 2009-04-07T22:29:13.30 0.3 undecidable manual Sg 329 50.2164 -0.068 70
IV.FDMO.HHN. 2009-04-07T22:29:10.06 0.3 undecidable manual Pg 337 71.2731 0.178 66
.LNSS.HHZ. 2009-04-07T22:29:09.76 0.3 undecidable manual Sg 298 36.741 0.008 73
IV.NRCA.HHE. 2009-04-07T22:29:06.56 0.1 undecidable manual Pg 329 50.2164 -0.084 94
.TERO.HHN. 2009-04-07T22:29:05.98 0.3 undecidable manual Sg 35 23.754 -0.317 71
.LNSS.HHZ. 2009-04-07T22:29:04.63 0.3 undecidable manual Pg 298 36.741 0.074 72
.FIAM.HHE. 2009-04-07T22:29:03.12 0.3 undecidable manual Pg 233 32.9448 -0.861 57
.AQU.HHZ. 2009-04-07T22:29:02.95 0.3 undecidable manual Sg 195 10.7781 0.134 76
.TERO.HHN. 2009-04-07T22:29:02.56 0.1 undecidable manual Pg 35 23.754 -0.002 99
.CAMP.HHE. 2009-04-07T22:29:02.35 0.3 undecidable manual Sg 347 9.9789 -0.265 71
.CAMP.HHE. 2009-04-07T22:29:00.60 0.1 positive manual Pg 347 9.9789 0.16 100
.AQU.HHZ. 2009-04-07T22:29:00.94 0.1 undecidable manual Pg 195 10.7781 0.389 95
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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