Earthquake with magnitude of ML 3.0 on date 06-04-2009 and time 04:59:50 (Italy) in region 1 km W L'Aquila (AQ)

A magnitude ML 3.0 earthquake occured in region: 1 km W L'Aquila (AQ), on

  • 06-04-2009 02:59:50 (UTC)
  • 06-04-2009 04:59:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3510, 13.3860 at 9 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 1 69753 69753
Lucoli AQ 8 1011 70764
Tornimparte AQ 10 3187 73951
Ocre AQ 10 1167 75118
Fossa AQ 11 721 75839
Scoppito AQ 11 3727 79566
Pizzoli AQ 12 4326 83892
Sant'Eusanio Forconese AQ 13 394 84286
Poggio Picenze AQ 13 1136 85422
Barete AQ 14 737 86159
Rocca di Cambio AQ 15 533 86692
Villa Sant'Angelo AQ 15 424 87116
San Demetrio ne' Vestini AQ 16 1854 88970
Barisciano AQ 17 1828 90798
Cagnano Amiterno AQ 18 1369 92167
Fagnano Alto AQ 19 418 92585
Rocca di Mezzo AQ 19 1526 94111
Prata d'Ansidonia AQ 20 496 94607

Municipalities with at least 50000 inhabitants

An earthquake occurred to
1 Km W of L'Aquila (69753 inhabitants)
43 Km SW of Teramo (54892 inhabitants)
64 Km W of Chieti (51815 inhabitants)
65 Km NE of Tivoli (56533 inhabitants)
65 Km E of Terni (111501 inhabitants)
65 Km W of Montesilvano (53738 inhabitants)
67 Km NE of Guidonia Montecelio (88673 inhabitants)
69 Km W of Pescara (121014 inhabitants)
87 Km SE of Foligno (57155 inhabitants)
89 Km NE of Velletri (53303 inhabitants)
90 Km NE of Roma (2864731 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap

These three maps show the results of the analysis using the software ShakeMap designed to provide the level of ground shaking experienced in a region using the data recorded by seismometers and strong motion instruments and seismological information regarding the attenuation of the wavefield with distance and the site characteristics. The Shakemaps are determined for research purposes to provide fast estimates of the level of ground shaking produced by the earthquake. The maps are calculated automatically and updated as more data become available. See http://shakemap.ingv.it for additional information. The black star indicates the epicenter. The triangles show the accelerometric and velocimetric stations used in the calculation, colored according to the recorded shaking.

Intensity Shakemap

Intensity Shakemap

This map shows the distribution of instrumental intensities. The intensity is derived through an empirical law that correlates the recorded values of actual ground shaking, e.g., acceleration and velocity, with the macroseismic intensity for Italian earthquakes, as reported in the Italian Macroseismic Database (DBMI15, https://doi.org/10.13127/cpti/cpti15.3).
Peak ground acceleration Shakemap

Peak ground acceleration Shakemap

This map shows the distribution of peak ground acceleration expressed as percent of the acceleration of gravity (i.e., g = 9.81 m/s²).
Peak velocity Shakemap

Peak velocity Shakemap

This map shows the distribution of peak ground velocities expressed in cm/s.
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 3.0 2009-04-06
02:59:50
42.351 13.386 9 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 756219
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-06 02:59:50 ± 0.09
Latitude 42.3510 ± 0.0054
Longitude 13.3860 ± 0.0085
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 756219

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 714
Semi-minor axis of confidence ellipse (meter) 262
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 64
Circular confidence region, given by single value of horizontal uncertainty (meter) 922.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 40
Number of associated phases, regardless of their use for origin computation 81
Number of defining phases 39
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.63
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.20869
Number of stations at which the event was observed 67
Number of stations from which data was used for origin computation 30
Magnitude information

ML:3.0

Field Value
Value 3.0
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 756219
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:17:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CTI.EHN. 2009-04-06T03:00:52.39 10.0 undecidable manual Pn 0 0 0
NI.POLC.HHZ. 2009-04-06T03:00:50.20 10.0 undecidable manual Pn 0 0 0
IV.PSB1.HHN. 2009-04-06T03:00:47.88 10.0 undecidable manual Pn 0 0 0
IV.CDCA.EHE. 2009-04-06T03:00:45.08 10.0 undecidable manual Pn 0 0 0
IV.SACR.HHN. 2009-04-06T03:00:42.66 10.0 undecidable manual Pn 0 0 0
IV.SENI.EHE. 2009-04-06T03:00:38.56 10.0 undecidable manual Pn 0 0 0
IV.PII.SHZ. 2009-04-06T03:00:36.22 10.0 undecidable manual Pn 0 0 0
IV.SEI.SHZ. 2009-04-06T03:00:34.91 10.0 undecidable manual Pn 0 0 0
IV.MCRV.HHZ. 2009-04-06T03:00:33.34 10.0 undecidable manual Sn 0 0 0
IV.VMG.SHZ. 2009-04-06T03:00:32.86 10.0 undecidable manual Pn 0 0 0
IV.ASQU.HHZ. 2009-04-06T03:00:32.93 10.0 undecidable manual Sn 0 0 0
IV.FSSB.HHE. 2009-04-06T03:00:31.68 10.0 undecidable manual Sg 0 0 0
IV.ASQU.HHZ. 2009-04-06T03:00:29.32 10.0 undecidable manual Pn 0 0 0
IV.MCRV.HHZ. 2009-04-06T03:00:29.42 10.0 undecidable manual Pn 0 0 0
IV.MRB1.HHN. 2009-04-06T03:00:29.98 10.0 undecidable manual Pn 0 0 0
IV.FG5.SHZ. 2009-04-06T03:00:27.76 10.0 undecidable manual Pn 0 0 0
IV.RSM.HHZ. 2009-04-06T03:00:25.60 10.0 undecidable manual Pn 0 0 0
IV.CSNT.HHZ. 2009-04-06T03:00:25.46 10.0 undecidable manual Pn 0 0 0
IV.GRFL.SHZ. 2009-04-06T03:00:25.37 10.0 undecidable manual Pn 0 0 0
IV.SGRT.HHE. 2009-04-06T03:00:24.97 10.0 undecidable manual Pn 0 0 0
IV.PESA.HHN. 2009-04-06T03:00:23.40 10.0 undecidable manual Pn 0 0 0
IV.ARCI.HHN. 2009-04-06T03:00:21.89 10.0 undecidable manual Pn 0 0 0
IV.PARC.HHZ. 2009-04-06T03:00:20.95 10.0 undecidable manual Pn 0 0 0
IV.BSSO.HHZ. 2009-04-06T03:00:20.21 10.0 undecidable manual Sg 0 0 0
IV.CAFI.HHZ. 2009-04-06T03:00:19.32 10.0 undecidable manual Pn 0 0 0
IV.BADI.EHZ. 2009-04-06T03:00:19.97 10.0 undecidable manual Pn 0 0 0
IV.PTRJ.HHZ. 2009-04-06T03:00:18.22 10.0 undecidable manual Pg 0 0 0
IV.FG2.SHZ. 2009-04-06T03:00:18.78 10.0 undecidable manual Pg 0 0 0
IV.PIEI.HHZ. 2009-04-06T03:00:18.27 10.0 undecidable manual Pg 0 0 0
IV.SGG.HHE. 2009-04-06T03:00:17.04 10.0 undecidable manual Pg 0 0 0
IV.MODR.HHZ. 2009-04-06T03:00:17.86 10.0 undecidable manual Pg 0 0 0
IV.TRIV.HHE. 2009-04-06T03:00:17.09 10.0 undecidable manual Pg 0 0 0
IV.FRES.HHZ. 2009-04-06T03:00:16.82 10.0 undecidable manual Sg 0 0 0
IV.BSSO.HHZ. 2009-04-06T03:00:16.73 10.0 undecidable manual Pg 0 0 0
IV.CESI.HHZ. 2009-04-06T03:00:16.10 0.6 undecidable manual Sg 332 82.4508 0.667 37
IV.FSSB.HHE. 2009-04-06T03:00:16.68 10.0 undecidable manual Pg 0 0 0
IV.VAGA.HHZ. 2009-04-06T03:00:15.72 10.0 undecidable manual Pg 0 0 0
IV.RFI.SHZ. 2009-04-06T03:00:15.07 10.0 undecidable manual Pg 0 0 0
IV.SACS.HHZ. 2009-04-06T03:00:14.19 0.6 undecidable manual Pg 295 132.5673 1.609 21
IV.LATE.HHZ. 2009-04-06T03:00:14.94 10.0 undecidable manual Pg 0 0 0
IV.LPEL.HHN. 2009-04-06T03:00:13.38 0.6 undecidable manual Sg 117 73.7706 0.276 43
IV.AOI.HHZ. 2009-04-06T03:00:13.20 0.1 undecidable manual Pg 7 134.1657 0.373 74
IV.MURB.HHZ. 2009-04-06T03:00:12.13 0.6 undecidable manual Pg 326 123.0879 1.015 30
IV.FRES.HHZ. 2009-04-06T03:00:12.86 10.0 undecidable manual Pg 0 0 0
IV.MGAB.HHZ. 2009-04-06T03:00:12.09 0.6 undecidable manual Pg 301 121.1898 1.266 26
IV.ARVD.HHE. 2009-04-06T03:00:12.45 0.3 undecidable manual Pg 344 132.2676 -0.081 59
IV.TOLF.HHZ. 2009-04-06T03:00:11.60 0.6 undecidable manual Pg 255 118.1928 1.231 27
IV.ROM9.HHN. 2009-04-06T03:00:09.86 10.0 undecidable manual Pg 0 0 0
IV.SFI.EHE. 2009-04-06T03:00:09.57 10.0 undecidable manual Pg 0 0 0
IV.INTR.HHN. 2009-04-06T03:00:08.62 0.3 undecidable manual Sg 131 56.8986 0.005 70
IV.VVLD.HHZ. 2009-04-06T03:00:08.71 0.6 undecidable manual Sg 160 56.8986 0.094 46
IV.NRCA.HHZ. 2009-04-06T03:00:08.49 0.3 undecidable manual Sg 338 57.8976 -0.395 64
IV.MIDA.HHZ. 2009-04-06T03:00:07.98 0.1 undecidable manual Pg 137 106.4157 -0.564 74
IV.MA9.HHZ. 2009-04-06T03:00:07.01 10.0 undecidable manual Pg 0 0 0
IV.RNI2.HHE. 2009-04-06T03:00:07.38 0.3 undecidable manual Pg 138 95.7264 0.482 59
IV.CERA.HHN. 2009-04-06T03:00:07.06 0.3 undecidable manual Pg 148 98.5236 -0.274 61
IV.GIUL.HHZ. 2009-04-06T03:00:06.18 0.6 undecidable manual Pg 187 88.6446 0.373 41
IV.CESI.HHZ. 2009-04-06T03:00:04.46 0.3 undecidable manual Pg 332 82.4508 -0.398 61
IV.RMP.HHE. 2009-04-06T03:00:04.56 0.6 undecidable manual Pg 223 82.1511 -0.257 42
IV.CAFR.HHZ. 2009-04-06T03:00:04.66 0.3 undecidable manual Pg 100 80.0643 0.169 65
IV.GUAR.HHZ. 2009-04-06T03:00:03.10 0.6 undecidable manual Pg 186 62.0934 1.388 28
IV.POFI.HHE. 2009-04-06T03:00:03.93 0.6 undecidable manual Pg 159 75.2691 0.18 43
IV.LPEL.HHN. 2009-04-06T03:00:03.24 0.3 undecidable manual Pg 117 73.7706 -0.272 64
IV.OFFI.HHZ. 2009-04-06T03:00:03.53 0.1 undecidable manual Pg 21 69.2751 0.709 75
IV.TRTR.HHE. 2009-04-06T03:00:03.10 0.3 undecidable manual Pg 40 66.5778 0.691 57
IV.MTCE.HHE. 2009-04-06T03:00:01.66 0.1 undecidable manual Pg 236 64.1913 -0.386 85
IV.NRCA.HHZ. 2009-04-06T03:00:00.49 0.1 undecidable manual Pg 338 57.8976 -0.587 81
.CERT.---. 2009-04-06T03:00:00.31 0.3 undecidable manual Pg 217 55.5999 -0.412 64
IV.INTR.HHN. 2009-04-06T03:00:00.72 0.1 undecidable manual Pg 131 56.8986 -0.202 89
IV.VVLD.HHZ. 2009-04-06T03:00:00.32 0.3 undecidable manual Pg 160 56.8986 -0.596 61
IV.FIAM.HHZ. 2009-04-06T02:59:59.07 0.3 undecidable manual Sg 247 23.8539 -0.142 72
.PTQR.---. 2009-04-06T02:59:57.44 0.1 undecidable manual Pg 178 36.5412 -0.341 90
IV.CAMP.HHN. 2009-04-06T02:59:57.86 0.1 undecidable manual Sg 5 20.5683 -0.283 94
.FAGN.---. 2009-04-06T02:59:57.93 0.3 undecidable manual Sg 120 18.7701 0.345 70
.VCEL.---. 2009-04-06T02:59:57.71 0.3 undecidable manual Pg 82 37.629 -0.234 69
.TERO.---. 2009-04-06T02:59:56.72 0.1 undecidable manual Pg 31 35.0427 -0.829 76
IV.FIAM.HHZ. 2009-04-06T02:59:55.66 0.1 undecidable manual Pg 247 23.8539 0.168 96
IV.CAMP.HHN. 2009-04-06T02:59:54.80 0.1 undecidable manual Pg 5 20.5683 -0.075 98
.FAGN.---. 2009-04-06T02:59:54.83 0.1 undecidable manual Pg 120 18.7701 0.278 94
.AQU.---. 2009-04-06T02:59:53.22 0.3 undecidable manual Sg 77 1.3986 -0.202 74
.AQU.---. 2009-04-06T02:59:52.28 0.1 negative manual Pg 77 1.3986 0.131 100
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, /tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in miniseed + resp format Download