Earthquake with magnitude of Mw 4.2 on date 09-04-2009 and time 05:14:52 (Italy) 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) 42.34, 13.44 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 seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the last three days (72 hours)

Earthquakes of the last three days (72 hours)

This map reports the earthquake epicenters located in the past 72 hours (3 days) from the time this page has been generated. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the last 90 days

Earthquakes of the last 90 days

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1985

Earthquakes since 1985

This map reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Significant earthquakes since 1000 AD until 2006

Significant earthquakes since 1000 AD until 2006

This map shows the epicenters of the historical earthquakes catalogue CPT11 (Catalogo Parametrico dei Terremoti Italiani, 2011 version) with estimated magnitude ≥ 5.0 since 1000 AD until 2006. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows 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 adjourned progressively as more data become available. See http://shakemap.rm.ingv.it/ for additional information.

The red star indicates the epicenter. The red triangles show the stations of the INGV Italian National Seismic Network and the blue triangles those of the Nationa Accelerometric Network of the Dipartimento della Protezione Civile.

Intensity Shakemap

Intensity Shakemap

This map shows the distribution of the istrumentally derived intensities. To this purpose, it is used a conversion relation between ground acceleration and velocity, and the Mercalli Modificata (MMI - Modified Mercalli Intensity) scale. In general, the Mercalli intensity scale relies on the effects that the ground shaking produces as reported by an observer.
Peak ground acceleration Shakemap

Peak ground acceleration Shakemap

This map shows This map shows the distribution of peak ground acceleration expressed as per cent 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
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 1000 ML 4.6
Mw 4.2
2009-04-09
03:14:52
42.34 13.44 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 42.34 ± 0.00
Longitude 13.44 ± 0.01
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
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
GU.PCP.HHE. 2009-04-09T03:15:57.29 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
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.NOVE.EHE. 2009-04-09T03:15:50.06 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
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
GE.MATE.HHZ. 2009-04-09T03:15:40.84 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
.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 0.554 -0.268 67
IV.VVLD.HHZ. 2009-04-09T03:15:09.31 0.6 undecidable manual Sg 164 0.4838 0.145 46
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
.MIDA.HHE. 2009-04-09T03:15:08.86 0.3 undecidable manual Pg 139 0.9173 -0.548 57
IV.MA9.HHN. 2009-04-09T03:15:07.69 0.3 undecidable manual Pg 226 0.8103 0.106 65
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 0.822 -0.193 63
IV.RDP.BHZ. 2009-04-09T03:15:07.24 0.3 undecidable manual Pg 223 0.7896 0.02 66
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.CAFR.HHZ. 2009-04-09T03:15:05.52 0.1 negative manual Pg 99 0.6763 0.222 88
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.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 0.554 -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 0.25 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
.PTQR.SHZ. 2009-04-09T03:14:59.30 0.1 positive manual Pg 186 0.3148 0.12 96
IV.VCEL.EHZ. 2009-04-09T03:14:59.12 0.1 undecidable manual Pg 78 0.2995 0.191 95
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 0.25 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
IV.CAMP.HHZ. 2009-04-09T03:14:57.51 0.1 positive manual Pg 353 0.2023 0.127 98
MN.AQU.HHZ. 2009-04-09T03:14:57.76 0.3 undecidable manual Sg 302 0.036 -0.091 76
IV.T0108.HLN. 2009-04-09T03:14:57.98 0.3 undecidable manual Sg 271 0.0495 0.005 77
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
MN.AQU.HHZ. 2009-04-09T03:14:55.66 0.1 undecidable manual Pg 302 0.036 0.172 100
IV.T0108.HLN. 2009-04-09T03:14:55.75 0.1 undecidable manual Pg 271 0.0495 0.189 99
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 0.138645 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 0.05395 0.6 AML other m 2009-04-09T03:15:01.97
IV.VVLD.HHE. ML:4.3 0.039435 0.7 AML other m 2009-04-09T03:15:01.97
IV.CERT.HHN. ML:4.9 0.15918 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 0.102735 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 0.03815 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 0.179095 0.6 AML other m 2009-04-09T03:15:04.89
IV.OFFI.HHE. ML:5 0.15973 0.38 AML other m 2009-04-09T03:15:04.89
IV.CESX.HHN. ML:4.4 0.03899 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 0.00647 0.96 AML other m 2009-04-09T03:15:40.47
IV.MIGL.HHE. ML:0 0.003815 2.46 AML other m 2009-04-09T03:15:40.47
GE.MATE.HHN. ML:0 0.000995 0.86 AML other m 2009-04-09T03:15:40.84
GE.MATE.HHE. ML:0 0.001035 0.74 AML other m 2009-04-09T03:15:40.84
IV.SCHR.EHN. ML:0 0.00029 1.28 AML other m 2009-04-09T03:15:41.13
IV.SCHR.EHE. ML:0 0.000345 2 AML other m 2009-04-09T03:15:41.13
IV.CRAC.EHN. ML:0 0.001905 1.04 AML other m 2009-04-09T03:15:41.75
IV.CRAC.EHE. ML:0 0.00066 1.12 AML other m 2009-04-09T03:15:41.75
IV.NOCI.HHN. ML:0 0.001175 1.16 AML other m 2009-04-09T03:15:42.81
IV.NOCI.HHE. ML:0 0.000815 0.86 AML other m 2009-04-09T03:15:42.81
MN.TRI.HHN. ML:0 0.000845 0.7 AML other m 2009-04-09T03:15:44.84
MN.TRI.HHE. ML:0 0.00081 0.58 AML other m 2009-04-09T03:15:44.84
GU.SC2M.HHN. ML:0 0.00029 0.84 AML other m 2009-04-09T03:15:48.59
GU.SC2M.HHE. ML:0 0.00068 0.98 AML other m 2009-04-09T03:15:48.59
NI.SABO.HHN. ML:0 0.00211 0.5 AML other m 2009-04-09T03:15:48.88
NI.SABO.HHE. ML:0 0.00183 0.66 AML other m 2009-04-09T03:15:48.88
NI.POLC.HHN. ML:0 0.00229 0.66 AML other m 2009-04-09T03:15:51.06
NI.POLC.HHE. ML:0 0.002525 0.48 AML other m 2009-04-09T03:15:51.06
IV.CARO.HHN. ML:0 0.00029 0.94 AML other m 2009-04-09T03:15:52.15
IV.CARO.HHE. ML:0 0.00038 1.92 AML other m 2009-04-09T03:15:52.15
IV.SALO.HHN. ML:0 0.001515 0.66 AML other m 2009-04-09T03:15:53.40
IV.PTCC.HHN. ML:0 0.000465 0.46 AML other m 2009-04-09T03:15:54.09
IV.PTCC.HHE. ML:0 0.000565 0.64 AML other m 2009-04-09T03:15:54.09
MN.VSL.HHN. ML:0 0.000255 0.52 AML other m 2009-04-09T03:15:57.20
MN.VSL.HHE. ML:0 0.000185 0.72 AML other m 2009-04-09T03:15:57.20
GU.PCP.HHN. ML:0 0.000105 0.66 AML other m 2009-04-09T03:15:57.29
GU.PCP.HHE. ML:0 0.000145 0.74 AML other m 2009-04-09T03:15:57.29
IV.QLNO.HHN. ML:0 0.00027 1.94 AML other m 2009-04-09T03:15:57.56
IV.QLNO.HHE. ML:0 0.00013 0.68 AML other m 2009-04-09T03:15:57.56
IV.FVI.HHN. ML:0 0.0006 0.64 AML other m 2009-04-09T03:15:58.00
IV.FVI.HHE. ML:0 0.000475 1.34 AML other m 2009-04-09T03:15:58.00
GU.STV.HHN. ML:0 0.000135 0.76 AML other m 2009-04-09T03:16:07.28
GU.STV.HHE. ML:0 0.000195 0.64 AML other m 2009-04-09T03:16:07.28
IV.SBPO.HHZ. Md:0 15 END duration s
IV.ORI.EHZ. Md:0 16 END duration s
IV.MMME.BHN. Md: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

Focal Mechanism

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
Focal Mechanism in the area
Focal Mechanisms

Focal Mechanisms

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://terremoti.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol 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 full SEED format Download