Earthquake with magnitude of Mw 4.2 on date 09-04-2009 and time 03:14:52 (UTC) in region 4 km E L'Aquila (AQ)

A magnitude Mw 4.2 earthquake occured in region: 4 km E L'Aquila (AQ), on

  • 09-04-2009 03:14:52 (UTC)
  • 09-04-2009 05:14:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3350, 13.4440 at 17 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
Fossa AQ 6 721 70474
Ocre AQ 6 1167 71641
Poggio Picenze AQ 8 1136 72777
Sant'Eusanio Forconese AQ 8 394 73171
Lucoli AQ 10 1011 74182
Villa Sant'Angelo AQ 11 424 74606
San Demetrio ne' Vestini AQ 11 1854 76460
Rocca di Cambio AQ 12 533 76993
Barisciano AQ 12 1828 78821
Tornimparte AQ 13 3187 82008
Fagnano Alto AQ 14 418 82426
Prata d'Ansidonia AQ 15 496 82922
Rocca di Mezzo AQ 15 1526 84448
Scoppito AQ 16 3727 88175
Pizzoli AQ 17 4326 92501
Santo Stefano di Sessanio AQ 17 111 92612
Fontecchio AQ 18 369 92981
San Pio delle Camere AQ 18 661 93642
Barete AQ 19 737 94379

Municipalities with at least 50000 inhabitants

An earthquake occurred to
4 Km E of L'Aquila (69753 inhabitants)
42 Km SW of Teramo (54892 inhabitants)
60 Km W of Chieti (51815 inhabitants)
61 Km W of Montesilvano (53738 inhabitants)
65 Km W of Pescara (121014 inhabitants)
67 Km NE of Tivoli (56533 inhabitants)
70 Km NE of Guidonia Montecelio (88673 inhabitants)
70 Km E of Terni (111501 inhabitants)
91 Km NE of Velletri (53303 inhabitants)
92 Km SE of Foligno (57155 inhabitants)
93 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
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 4.6
Mw 4.2
2009-04-09
03:14:52
42.335 13.444 17 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 777669
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-09 03:14:52 ± 0.06
Latitude 42.3350 ± 0.0036
Longitude 13.4440 ± 0.0061
Depth (km) 17 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 777669

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 476
Semi-minor axis of confidence ellipse (meter) 93
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 69
Circular confidence region, given by single value of horizontal uncertainty (meter) 640.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 42
Number of associated phases, regardless of their use for origin computation 80
Number of defining phases 50
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.13674
Number of stations at which the event was observed 62
Number of stations from which data was used for origin computation 34
Magnitudes information

Mw:4.2

Field Value
Value 4.2
Uncertainty
Num. used stations
Type of magnitude Mw
Reference to an origin 777669
Agency INGV
Autore TDMT Historical
Time of creation (UTC) 2013-11-05 08:43:08

ML:4.6

Field Value
Value 4.6
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 777669
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:43:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.STV.HHZ. 2009-04-09T03:16:07.28 10.0 undecidable manual Pn 0 0 0
IV.MMME.BHN. 2009-04-09T03:16:05.73 10.0 undecidable manual Pn 0 0 0
MN.TIP.HHN. 2009-04-09T03:16:03.39 10.0 undecidable manual Pn 0 0 0
IV.FVI.HHZ. 2009-04-09T03:15:58.00 10.0 undecidable manual Pn 0 0 0
IV.QLNO.HHE. 2009-04-09T03:15:57.56 10.0 undecidable manual Pn 0 0 0
MN.VSL.HHN. 2009-04-09T03:15:57.20 10.0 undecidable manual Pn 0 0 0
IV.PIPA.HHZ. 2009-04-09T03:15:57.40 10.0 undecidable manual Pn 0 0 0
GU.PCP.HHE. 2009-04-09T03:15:57.29 10.0 undecidable manual Pn 0 0 0
IV.PTCC.HHN. 2009-04-09T03:15:54.09 10.0 undecidable manual Pn 0 0 0
IV.BOB.HHZ. 2009-04-09T03:15:53.59 10.0 undecidable manual Pn 0 0 0
IV.SALO.HHZ. 2009-04-09T03:15:53.40 10.0 undecidable manual Pn 0 0 0
IV.CARO.HHZ. 2009-04-09T03:15:52.15 10.0 undecidable manual Pn 0 0 0
IV.PRMA.HHN. 2009-04-09T03:15:52.72 10.0 undecidable manual Pn 0 0 0
NI.POLC.HHN. 2009-04-09T03:15:51.06 10.0 undecidable manual Pn 0 0 0
IV.SBPO.HHZ. 2009-04-09T03:15:50.00 10.0 undecidable manual Sg 0 0 0
IV.NOVE.EHE. 2009-04-09T03:15:50.06 10.0 undecidable manual Pn 0 0 0
NI.SABO.HHN. 2009-04-09T03:15:48.88 10.0 undecidable manual Pn 0 0 0
GU.SC2M.HHE. 2009-04-09T03:15:48.59 10.0 undecidable manual Pn 0 0 0
IV.ORI.EHZ. 2009-04-09T03:15:46.20 10.0 undecidable manual Sg 0 0 0
MN.TRI.HHN. 2009-04-09T03:15:44.84 10.0 undecidable manual Pg 0 0 0
IV.NOCI.HHZ. 2009-04-09T03:15:42.81 10.0 undecidable manual Pg 0 0 0
IV.FIU.EHN. 2009-04-09T03:15:42.15 10.0 undecidable manual Pg 0 0 0
IV.CRAC.EHZ. 2009-04-09T03:15:41.75 10.0 undecidable manual Pg 0 0 0
IV.SCHR.EHZ. 2009-04-09T03:15:41.13 10.0 undecidable manual Pg 0 0 0
IV.SIRI.HHN. 2009-04-09T03:15:40.56 10.0 undecidable manual Pg 0 0 0
IV.MIGL.HHE. 2009-04-09T03:15:40.47 10.0 undecidable manual Pg 0 0 0
GE.MATE.HHZ. 2009-04-09T03:15:40.84 10.0 undecidable manual Pg 0 0 0
.CESI.HHE. 2009-04-09T03:15:18.29 0.6 undecidable manual Sg 330 0.7779 0.455 40
IV.FDMO.HHE. 2009-04-09T03:15:17.50 0.3 undecidable manual Sg 340 0.7482 0.536 59
.MGAB.HHN. 2009-04-09T03:15:13.41 0.3 undecidable manual Pg 301 1.1367 0.26 58
IV.GUAR.HHZ. 2009-04-09T03:15:12.09 0.6 undecidable manual Sg 190 0.5486 1.013 34
.CING.HHN. 2009-04-09T03:15:11.46 0.1 undecidable manual Pg 350 1.0558 -0.309 79
IV.NRCA.HHZ. 2009-04-09T03:15:10.97 0.3 undecidable manual Sg 334 0.5540 -0.268 67
IV.CERT.HHZ. 2009-04-09T03:15:09.40 0.6 undecidable manual Sg 222 0.5153 -0.702 39
.ASSB.HHE. 2009-04-09T03:15:09.28 0.1 undecidable manual Pg 321 0.9128 -0.042 86
IV.INTR.HHN. 2009-04-09T03:15:09.52 0.3 undecidable manual Sg 133 0.4703 0.752 60
.FRES.HHN. 2009-04-09T03:15:09.70 0.1 undecidable manual Pg 111 0.9776 -0.726 69
IV.VVLD.HHZ. 2009-04-09T03:15:09.31 0.6 undecidable manual Sg 164 0.4838 0.145 46
.MIDA.HHE. 2009-04-09T03:15:08.86 0.3 undecidable manual Pg 139 0.9173 -0.548 57
IV.GIUL.HHZ. 2009-04-09T03:15:07.18 0.1 positive manual Pg 190 0.7887 -0.03 88
.RNI2.HHE. 2009-04-09T03:15:07.58 0.3 undecidable manual Pg 140 0.8220 -0.193 63
IV.RDP.BHZ. 2009-04-09T03:15:07.24 0.3 undecidable manual Pg 223 0.7896 0.02 66
IV.MA9.HHN. 2009-04-09T03:15:07.69 0.3 undecidable manual Pg 226 0.8103 0.106 65
IV.LNSS.HHZ. 2009-04-09T03:15:06.32 0.6 undecidable manual Sg 312 0.4002 -0.406 45
IV.FDMO.HHE. 2009-04-09T03:15:06.03 0.1 undecidable manual Pg 340 0.7482 -0.494 81
.CESI.HHE. 2009-04-09T03:15:06.79 0.1 undecidable manual Pg 330 0.7779 -0.237 86
IV.CESX.HHZ. 2009-04-09T03:15:05.51 0.3 undecidable manual Pg 294 0.6934 -0.077 68
.SDI.SHZ. 2009-04-09T03:15:05.01 0.1 negative manual Pg 156 0.6817 -0.371 84
IV.CAFR.HHZ. 2009-04-09T03:15:05.52 0.1 negative manual Pg 99 0.6763 0.222 88
IV.OFFI.HHE. 2009-04-09T03:15:04.89 0.1 undecidable manual Pg 16 0.6259 0.458 84
.MTCE.HHZ. 2009-04-09T03:15:04.26 0.1 positive manual Pg 239 0.6061 0.164 89
IV.VCEL.EHZ. 2009-04-09T03:15:04.42 0.6 undecidable manual Sg 78 0.2995 0.61 43
.POFI.HHZ. 2009-04-09T03:15:04.63 0.1 negative manual Pg 162 0.6484 -0.189 88
IV.TRTR.HHN. 2009-04-09T03:15:04.36 0.1 undecidable manual Pg 36 0.5864 0.602 81
IV.TERO.HHN. 2009-04-09T03:15:03.73 0.3 undecidable manual Sg 22 0.3112 -0.421 68
IV.GUAR.HHZ. 2009-04-09T03:15:03.10 0.1 positive manual Pg 190 0.5486 -0.025 93
IV.MNS.HHE. 2009-04-09T03:15:03.50 0.1 undecidable manual Pg 275 0.5657 0.092 91
IV.NRCA.HHZ. 2009-04-09T03:15:02.84 0.1 undecidable manual Pg 334 0.5540 -0.378 87
IV.CERT.HHZ. 2009-04-09T03:15:02.60 0.1 positive manual Pg 222 0.5153 0.038 93
IV.FIAM.HHZ. 2009-04-09T03:15:02.50 0.6 undecidable manual Sg 255 0.2500 0.064 49
IV.ORI.EHZ. 2009-04-09T03:15:02.79 10.0 undecidable manual Pg 0 0 0
IV.INTR.HHN. 2009-04-09T03:15:01.48 0.1 negative manual Pg 133 0.4703 -0.311 89
IV.VVLD.HHZ. 2009-04-09T03:15:01.97 0.1 negative manual Pg 164 0.4838 -0.051 93
IV.CAMP.HHZ. 2009-04-09T03:15:01.03 0.3 undecidable manual Sg 353 0.2023 -0.101 74
IV.LNSS.HHZ. 2009-04-09T03:15:00.49 0.1 undecidable manual Pg 312 0.4002 -0.123 95
IV.SBPO.HHZ. 2009-04-09T03:15:00.77 10.0 undecidable manual Pg 0 0 0
IV.VCEL.EHZ. 2009-04-09T03:14:59.12 0.1 undecidable manual Pg 78 0.2995 0.191 95
.PTQR.SHZ. 2009-04-09T03:14:59.30 0.1 positive manual Pg 186 0.3148 0.12 96
IV.T0104.EHZ. 2009-04-09T03:14:58.45 0.3 undecidable manual Sg 288 0.0818 0.037 76
IV.FIAM.HHZ. 2009-04-09T03:14:58.27 0.1 positive manual Pg 255 0.2500 0.134 96
IV.FAGN.HHE. 2009-04-09T03:14:58.81 0.6 undecidable manual Sg 124 0.1241 -0.419 46
IV.TERO.HHN. 2009-04-09T03:14:58.93 0.1 positive manual Pg 22 0.3112 -0.197 94
MN.AQU.HHZ. 2009-04-09T03:14:57.76 0.3 undecidable manual Sg 302 0.0360 -0.091 76
IV.T0108.HLN. 2009-04-09T03:14:57.98 0.3 undecidable manual Sg 271 0.0495 0.005 77
IV.CAMP.HHZ. 2009-04-09T03:14:57.51 0.1 positive manual Pg 353 0.2023 0.127 98
IV.T0104.EHZ. 2009-04-09T03:14:56.00 0.1 positive manual Pg 288 0.0818 0.187 99
IV.FAGN.HHE. 2009-04-09T03:14:56.48 0.1 negative manual Pg 124 0.1241 0.197 98
IV.T0108.HLN. 2009-04-09T03:14:55.75 0.1 undecidable manual Pg 271 0.0495 0.189 99
MN.AQU.HHZ. 2009-04-09T03:14:55.66 0.1 undecidable manual Pg 302 0.0360 0.172 100
IV.PE9.EHZ. 2009-04-09T03:14:21.88 10.0 undecidable manual Pg 0 0 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CAMP.HHN. ML:4.1 0.077 0.57 AML other m 2009-04-09T03:14:57.51
IV.CAMP.HHE. ML:4.1 0.077 0.57 AML other m 2009-04-09T03:14:57.51
IV.FIAM.HHN. ML:4.5 0.1325 0.49 AML other m 2009-04-09T03:14:58.27
IV.FIAM.HHE. ML:4.5 0.1325 0.49 AML other m 2009-04-09T03:14:58.27
IV.TERO.HHN. ML:4.7 0.15734 0.62 AML other m 2009-04-09T03:14:58.93
IV.TERO.HHE. ML:4.7 0.183 0.32 AML other m 2009-04-09T03:14:58.93
IV.VCEL.EHN. ML:4.8 0.211 0.44 AML other m 2009-04-09T03:14:59.12
IV.VCEL.EHE. ML:4.8 0.29747 0.6 AML other m 2009-04-09T03:14:59.12
IV.LNSS.HHN. ML:4.6 0.101185 0.44 AML other m 2009-04-09T03:15:00.49
IV.LNSS.HHE. ML:4.6 0.13864500000000002 0.36 AML other m 2009-04-09T03:15:00.49
IV.INTR.HHN. ML:4.3 0.05834 0.9 AML other m 2009-04-09T03:15:01.48
IV.INTR.HHE. ML:4.3 0.04094 0.86 AML other m 2009-04-09T03:15:01.48
IV.VVLD.HHN. ML:4.3 0.053950000000000005 0.6 AML other m 2009-04-09T03:15:01.97
IV.VVLD.HHE. ML:4.3 0.039435000000000005 0.7 AML other m 2009-04-09T03:15:01.97
IV.CERT.HHN. ML:4.9 0.15918000000000002 0.52 AML other m 2009-04-09T03:15:02.60
IV.CERT.HHE. ML:4.9 0.19653 0.4 AML other m 2009-04-09T03:15:02.60
IV.NRCA.HHN. ML:4.6 0.06347 0.16 AML other m 2009-04-09T03:15:02.84
IV.NRCA.HHE. ML:4.6 0.10273499999999999 0.2 AML other m 2009-04-09T03:15:02.84
IV.GUAR.HHN. ML:4.1 0.027425 0.74 AML other m 2009-04-09T03:15:03.10
IV.GUAR.HHE. ML:4.1 0.025235 0.76 AML other m 2009-04-09T03:15:03.10
IV.MNS.HHN. ML:4.4 0.05062 0.58 AML other m 2009-04-09T03:15:03.50
IV.MNS.HHE. ML:4.4 0.038149999999999996 0.52 AML other m 2009-04-09T03:15:03.50
IV.TRTR.HHN. ML:4.8 0.120465 0.56 AML other m 2009-04-09T03:15:04.36
IV.TRTR.HHE. ML:4.8 0.11766 0.62 AML other m 2009-04-09T03:15:04.36
IV.OFFI.HHN. ML:5.0 0.179095 0.6 AML other m 2009-04-09T03:15:04.89
IV.OFFI.HHE. ML:5.0 0.15972999999999998 0.38 AML other m 2009-04-09T03:15:04.89
IV.CESX.HHN. ML:4.4 0.038990000000000004 0.58 AML other m 2009-04-09T03:15:05.51
IV.CESX.HHE. ML:4.4 0.03749 0.44 AML other m 2009-04-09T03:15:05.51
IV.CAFR.HHN. ML:4.4 0.044185 0.98 AML other m 2009-04-09T03:15:05.52
IV.CAFR.HHE. ML:4.4 0.035495 0.72 AML other m 2009-04-09T03:15:05.52
IV.FDMO.HHN. ML:4.3 0.02579 0.82 AML other m 2009-04-09T03:15:06.03
IV.FDMO.HHE. ML:4.3 0.024035 0.56 AML other m 2009-04-09T03:15:06.03
IV.RDP.BHN. ML:5.1 0.162015 0.68 AML other m 2009-04-09T03:15:07.24
IV.RDP.BHE. ML:5.1 0.118935 0.48 AML other m 2009-04-09T03:15:07.24
IV.MA9.HHN. ML:4.9 0.089355 0.64 AML other m 2009-04-09T03:15:07.69
IV.MA9.HHE. ML:4.9 0.073225 0.58 AML other m 2009-04-09T03:15:07.69
IV.MIGL.HHN. ML:0.0 0.00647 0.96 AML other m 2009-04-09T03:15:40.47
IV.MIGL.HHE. ML:0.0 0.003815 2.46 AML other m 2009-04-09T03:15:40.47
GE.MATE.HHN. ML:0.0 0.000995 0.86 AML other m 2009-04-09T03:15:40.84
GE.MATE.HHE. ML:0.0 0.001035 0.74 AML other m 2009-04-09T03:15:40.84
IV.SCHR.EHN. ML:0.0 0.00029 1.28 AML other m 2009-04-09T03:15:41.13
IV.SCHR.EHE. ML:0.0 0.000345 2 AML other m 2009-04-09T03:15:41.13
IV.CRAC.EHN. ML:0.0 0.001905 1.04 AML other m 2009-04-09T03:15:41.75
IV.CRAC.EHE. ML:0.0 0.00066 1.12 AML other m 2009-04-09T03:15:41.75
IV.NOCI.HHN. ML:0.0 0.001175 1.16 AML other m 2009-04-09T03:15:42.81
IV.NOCI.HHE. ML:0.0 0.000815 0.86 AML other m 2009-04-09T03:15:42.81
MN.TRI.HHN. ML:0.0 0.0008449999999999999 0.7 AML other m 2009-04-09T03:15:44.84
MN.TRI.HHE. ML:0.0 0.0008100000000000001 0.58 AML other m 2009-04-09T03:15:44.84
GU.SC2M.HHN. ML:0.0 0.00029 0.84 AML other m 2009-04-09T03:15:48.59
GU.SC2M.HHE. ML:0.0 0.00068 0.98 AML other m 2009-04-09T03:15:48.59
NI.SABO.HHN. ML:0.0 0.00211 0.5 AML other m 2009-04-09T03:15:48.88
NI.SABO.HHE. ML:0.0 0.00183 0.66 AML other m 2009-04-09T03:15:48.88
NI.POLC.HHN. ML:0.0 0.00229 0.66 AML other m 2009-04-09T03:15:51.06
NI.POLC.HHE. ML:0.0 0.002525 0.48 AML other m 2009-04-09T03:15:51.06
IV.CARO.HHN. ML:0.0 0.00029 0.94 AML other m 2009-04-09T03:15:52.15
IV.CARO.HHE. ML:0.0 0.00038 1.92 AML other m 2009-04-09T03:15:52.15
IV.SALO.HHN. ML:0.0 0.0015149999999999999 0.66 AML other m 2009-04-09T03:15:53.40
IV.PTCC.HHN. ML:0.0 0.000465 0.46 AML other m 2009-04-09T03:15:54.09
IV.PTCC.HHE. ML:0.0 0.000565 0.64 AML other m 2009-04-09T03:15:54.09
MN.VSL.HHN. ML:0.0 0.000255 0.52 AML other m 2009-04-09T03:15:57.20
MN.VSL.HHE. ML:0.0 0.000185 0.72 AML other m 2009-04-09T03:15:57.20
GU.PCP.HHN. ML:0.0 0.00010499999999999999 0.66 AML other m 2009-04-09T03:15:57.29
GU.PCP.HHE. ML:0.0 0.000145 0.74 AML other m 2009-04-09T03:15:57.29
IV.QLNO.HHN. ML:0.0 0.00027 1.94 AML other m 2009-04-09T03:15:57.56
IV.QLNO.HHE. ML:0.0 0.00013000000000000002 0.68 AML other m 2009-04-09T03:15:57.56
IV.FVI.HHN. ML:0.0 0.0006 0.64 AML other m 2009-04-09T03:15:58.00
IV.FVI.HHE. ML:0.0 0.000475 1.34 AML other m 2009-04-09T03:15:58.00
GU.STV.HHN. ML:0.0 0.000135 0.76 AML other m 2009-04-09T03:16:07.28
GU.STV.HHE. ML:0.0 0.000195 0.64 AML other m 2009-04-09T03:16:07.28
IV.SBPO.HHZ. Md:0.0 15 END duration s
IV.ORI.EHZ. Md:0.0 16 END duration s
IV.MMME.BHN. Md:0.0 97 END duration s
TDMT - Time Domain Moment Tensor

TDMT details

Field Value
MagnitudeMw 4.2
Scalar Moment2.48445E+22 dyne-cm
Computed depth18 km
QualityAa
Variance Reduction%
Double Couple0%
CLVD0%
ISO0%
Model usedCIA
Modemanual
Statusfinal

Moment Tensor Components

Component Value
Mrr1.62E+21
Mtt9.7878E+21
Mpp-1.14078E+22
Mrt7.9364E+21
Mrp-1.99265E+22
Mtp-6.7919E+21

Nodal Planes

Name Strike Dip Rake
PN11568760
PN26230175

Fault Plane solution

Focal Mechanism

psmeca (GMT documentation)

18 156 87 60 62 30 175 2.48445 22 0.5 0.5

TDMT references

More info and references
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, http://terremoti.ingv.it/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