Earthquake with magnitude of ML 3.0 on date 06-04-2009 and time 14:00:36 (UTC) in region 4 km W L'Aquila (AQ)

A magnitude ML 3.0 earthquake occured in region: 4 km W L'Aquila (AQ), on

  • 06-04-2009 14:00:36 (UTC)
  • 06-04-2009 16:00:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3350, 13.3560 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.

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 4 69753 69753
Lucoli AQ 5 1011 70764
Tornimparte AQ 7 3187 73951
Scoppito AQ 9 3727 77678
Ocre AQ 11 1167 78845
Fossa AQ 12 721 79566
Pizzoli AQ 12 4326 83892
Barete AQ 14 737 84629
Sant'Eusanio Forconese AQ 15 394 85023
Rocca di Cambio AQ 16 533 85556
Poggio Picenze AQ 16 1136 86692
Villa Sant'Angelo AQ 17 424 87116
San Demetrio ne' Vestini AQ 18 1854 88970
Cagnano Amiterno AQ 18 1369 90339
Borgorose RI 19 4591 94930
Rocca di Mezzo AQ 19 1526 96456
Barisciano AQ 19 1828 98284

Municipalities with at least 50000 inhabitants

An earthquake occurred to
4 Km W of L'Aquila (69753 inhabitants)
46 Km SW of Teramo (54892 inhabitants)
62 Km NE of Tivoli (56533 inhabitants)
63 Km E of Terni (111501 inhabitants)
64 Km NE of Guidonia Montecelio (88673 inhabitants)
67 Km W of Chieti (51815 inhabitants)
68 Km W of Montesilvano (53738 inhabitants)
72 Km W of Pescara (121014 inhabitants)
86 Km NE of Velletri (53303 inhabitants)
87 Km NE of Roma (2864731 inhabitants)
87 Km SE of Foligno (57155 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
14:00:36
42.335 13.356 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 760369
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-06 14:00:36 ± 0.07
Latitude 42.3350 ± 0.0045
Longitude 13.3560 ± 0.0061
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 760369

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 537
Semi-minor axis of confidence ellipse (meter) 348
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 273
Circular confidence region, given by single value of horizontal uncertainty (meter) 707.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 39
Number of associated phases, regardless of their use for origin computation 83
Number of defining phases 48
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.53
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.54593
Number of stations at which the event was observed 70
Number of stations from which data was used for origin computation 37
Magnitude information

ML:3.0

Field Value
Value 3.0
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 760369
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:22:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SBPO.HHE. 2009-04-06T14:01:25.26 10.0 undecidable manual Pn 0 0 0
IV.CDCA.EHN. 2009-04-06T14:01:24.79 10.0 undecidable manual Pn 0 0 0
IV.MRLC.HHN. 2009-04-06T14:01:23.80 10.0 undecidable manual Pn 0 0 0
IV.VMG.SHZ. 2009-04-06T14:01:18.94 10.0 undecidable manual Pn 0 0 0
IV.MELA.HHE. 2009-04-06T14:01:17.59 10.0 undecidable manual Pn 0 0 0
IV.MCRV.HHZ. 2009-04-06T14:01:15.59 10.0 undecidable manual Pn 0 0 0
IV.SGTA.HHZ. 2009-04-06T14:01:15.27 10.0 undecidable manual Pn 0 0 0
IV.SFI.EHZ. 2009-04-06T14:01:14.96 10.0 undecidable manual Pn 0 0 0
IV.MSAG.HHE. 2009-04-06T14:01:14.77 10.0 undecidable manual Pn 0 0 0
IV.GAVE.SHZ. 2009-04-06T14:01:13.85 10.0 undecidable manual Pn 0 0 0
IV.ASQU.HHN. 2009-04-06T14:01:12.63 10.0 undecidable manual Pn 0 0 0
IV.PTCC.HHZ. 2009-04-06T14:01:12.22 10.0 undecidable manual Pn 0 0 0
IV.GRFL.SHZ. 2009-04-06T14:01:11.39 10.0 undecidable manual Pn 0 0 0
IV.BADI.EHN. 2009-04-06T14:01:07.69 10.0 undecidable manual Pn 0 0 0
IV.ROM9.HHE. 2009-04-06T14:01:07.44 10.0 undecidable manual Sg 0 0 0
IV.PARC.HHZ. 2009-04-06T14:01:05.02 0.6 undecidable manual Pn 328 171.5949 0.871 28
IV.SACR.HHE. 2009-04-06T14:01:04.85 10.0 undecidable manual Pn 0 0 0
IV.ARCI.HHZ. 2009-04-06T14:01:04.70 10.0 undecidable manual Pn 0 0 0
IV.CIGN.HHE. 2009-04-06T14:01:03.44 10.0 undecidable manual Pn 0 0 0
IV.CAFI.HHZ. 2009-04-06T14:01:03.11 0.6 undecidable manual Pn 315 157.9197 1.069 27
IV.FSSB.HHN. 2009-04-06T14:01:02.48 0.6 undecidable manual Pn 343 157.8198 0.463 35
IV.PTRJ.HHZ. 2009-04-06T14:01:02.21 10.0 undecidable manual Pn 0 0 0
IV.MGAB.HHZ. 2009-04-06T14:01:02.21 10.0 undecidable manual Sg 0 0 0
IV.BSSO.HHZ. 2009-04-06T14:01:02.76 10.0 undecidable manual Pn 0 0 0
IV.SGG.HHZ. 2009-04-06T14:01:02.01 10.0 undecidable manual Pn 0 0 0
IV.BLLA.EHZ. 2009-04-06T14:01:01.47 10.0 undecidable manual Pn 0 0 0
IV.MODR.HHZ. 2009-04-06T14:01:00.26 10.0 undecidable manual Pg 0 0 0
IV.RFI.SHZ. 2009-04-06T14:01:00.05 10.0 undecidable manual Pg 0 0 0
IV.MSC.EHZ. 2009-04-06T14:01:00.86 10.0 undecidable manual Pn 0 0 0
IV.LPEL.HHZ. 2009-04-06T14:00:59.38 0.3 undecidable manual Sg 115 75.1692 0.437 63
IV.AOI.HHZ. 2009-04-06T14:00:59.33 1.0 undecidable manual Pg 8 136.2636 0.63 18
IV.SACS.HHZ. 2009-04-06T14:00:59.25 10.0 undecidable manual Pg 0 0 0
IV.LATE.HHZ. 2009-04-06T14:00:59.67 10.0 undecidable manual Pg 0 0 0
IV.PIEI.HHE. 2009-04-06T14:00:59.20 10.0 undecidable manual Pg 0 0 0
IV.ARVD.HHN. 2009-04-06T14:00:58.39 0.1 undecidable manual Pg 346 133.3665 0.143 80
IV.MGAB.HHZ. 2009-04-06T14:00:57.90 10.0 undecidable manual Pg 0 0 0
IV.VAGA.HHE. 2009-04-06T14:00:57.55 1.0 undecidable manual Pg 144 125.1747 0.557 18
IV.MURB.HHN. 2009-04-06T14:00:56.81 0.6 undecidable manual Pg 327 123.1878 0.124 41
IV.FRES.HHN. 2009-04-06T14:00:56.62 10.0 undecidable manual Pg 0 0 0
IV.TOLF.HHZ. 2009-04-06T14:00:56.84 0.6 undecidable manual Pg 255 115.3956 1.351 26
IV.TRIV.HHN. 2009-04-06T14:00:55.08 10.0 undecidable manual Pg 0 0 0
IV.NRCA.SHZ. 2009-04-06T14:00:55.09 0.6 undecidable manual Sg 340 58.6968 0.531 43
IV.CING.HHZ. 2009-04-06T14:00:55.30 0.6 undecidable manual Pg 354 116.0949 -0.3 40
IV.ROM9.HHE. 2009-04-06T14:00:54.50 10.0 undecidable manual Pg 0 0 0
IV.LAV9.SHZ. 2009-04-06T14:00:54.43 10.0 undecidable manual Pg 0 0 0
IV.INTR.HHZ. 2009-04-06T14:00:54.81 0.3 undecidable manual Sg 128 57.5979 0.535 64
IV.SNTG.SHZ. 2009-04-06T14:00:54.18 0.1 undecidable manual Pg 342 107.5146 -0.088 86
IV.MA9.HHN. 2009-04-06T14:00:53.70 10.0 undecidable manual Pg 0 0 0
IV.MIDA.HHZ. 2009-04-06T14:00:53.62 0.3 undecidable manual Pg 136 106.7154 -0.532 58
IV.ASSB.HHZ. 2009-04-06T14:00:53.00 0.3 undecidable manual Pg 324 96.9252 0.364 62
IV.RNI2.HHZ. 2009-04-06T14:00:52.99 0.6 undecidable manual Pg 137 96.0261 0.489 40
IV.CERA.HHZ. 2009-04-06T14:00:52.63 0.3 undecidable manual Pg 146 98.3238 -0.23 63
IV.CERT.HHZ. 2009-04-06T14:00:52.61 0.6 undecidable manual Sg 216 52.8027 -0.362 45
IV.CAFR.HHZ. 2009-04-06T14:00:50.71 0.3 undecidable manual Pg 98 82.1511 0.343 64
IV.GIUL.HHE. 2009-04-06T14:00:50.66 0.6 undecidable manual Pg 186 86.5467 -0.386 42
IV.VCEL.EHZ. 2009-04-06T14:00:50.60 0.6 undecidable manual Sg 80 40.2264 0.97 37
IV.RMP.HHZ. 2009-04-06T14:00:50.64 0.6 undecidable manual Pg 223 79.2651 0.727 38
IV.SDI.SHZ. 2009-04-06T14:00:49.93 0.3 undecidable manual Pg 151 78.8655 0.08 68
IV.OFFI.HHZ. 2009-04-06T14:00:49.14 0.1 undecidable manual Pg 22 71.7726 0.38 86
IV.FDMO.HHZ. 2009-04-06T14:00:49.65 0.1 undecidable manual Pg 344 80.8635 -0.509 82
IV.TRTR.HHZ. 2009-04-06T14:00:49.61 0.6 undecidable manual Pg 41 69.4749 1.201 31
IV.TERO.HHZ. 2009-04-06T14:00:48.96 0.3 undecidable manual Sg 32 37.8288 -0.017 74
IV.LPEL.HHZ. 2009-04-06T14:00:48.87 0.1 undecidable manual Pg 115 75.1692 -0.408 85
IV.POFI.HHN. 2009-04-06T14:00:48.96 0.6 undecidable manual Pg 157 74.5698 -0.228 44
IV.PTQR.SHZ. 2009-04-06T14:00:47.71 0.3 undecidable manual Sg 174 34.9428 -0.505 67
IV.NRCA.SHZ. 2009-04-06T14:00:46.28 0.1 positive manual Pg 340 58.6968 -0.467 87
IV.GUAR.HHE. 2009-04-06T14:00:46.69 0.3 undecidable manual Pg 183 60.0954 -0.27 68
IV.VVLD.HHN. 2009-04-06T14:00:46.36 0.3 undecidable manual Pg 157 56.0994 0.008 72
IV.MTCE.HHE. 2009-04-06T14:00:46.99 0.1 undecidable manual Pg 236 61.1943 -0.148 92
IV.INTR.HHZ. 2009-04-06T14:00:46.37 0.1 positive manual Pg 128 57.5979 -0.213 92
IV.CERT.HHZ. 2009-04-06T14:00:45.68 0.1 positive manual Pg 216 52.8027 -0.152 94
IV.MNS.HHZ. 2009-04-06T14:00:45.95 0.3 undecidable manual Pg 276 55.5999 -0.323 68
IV.CAMP.HHE. 2009-04-06T14:00:44.05 0.1 undecidable manual Sg 11 22.6551 -0.554 90
IV.FIAM.HHZ. 2009-04-06T14:00:44.29 0.1 undecidable manual Sg 249 20.9679 0.222 98
IV.FAGN.HHE. 2009-04-06T14:00:43.84 0.3 undecidable manual Sg 112 20.1687 0.016 77
IV.VCEL.EHZ. 2009-04-06T14:00:43.69 0.3 undecidable manual Pg 80 40.2264 -0.212 71
IV.TERO.HHZ. 2009-04-06T14:00:42.70 0.1 undecidable manual Pg 32 37.8288 -0.827 78
IV.PTQR.SHZ. 2009-04-06T14:00:42.90 0.1 positive manual Pg 174 34.9428 -0.188 96
IV.FIAM.HHZ. 2009-04-06T14:00:40.93 0.1 positive manual Pg 249 20.9679 0.239 97
IV.FAGN.HHE. 2009-04-06T14:00:40.67 0.1 undecidable manual Pg 112 20.1687 0.122 100
IV.CAMP.HHE. 2009-04-06T14:00:40.74 0.1 positive manual Pg 11 22.6551 -0.263 97
MN.AQU.HHZ. 2009-04-06T14:00:39.76 0.3 undecidable manual Sg 61 4.2957 0.071 78
MN.AQU.HHZ. 2009-04-06T14:00:38.44 0.1 negative manual Pg 61 4.2957 0.278 99
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