ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of Mw 3.9 on date 09-04-2009 and time 00:56:50 (Italy) in region 6 km E Capitignano (AQ)

A magnitude Mw 3.9 earthquake occured in region: 6 km E Capitignano (AQ), on

  • 08-04-2009 22:56:50 (UTC)
  • 09-04-2009 00:56:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.5, 13.37 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
Capitignano AQ 6 665 665
Campotosto AQ 7 542 1207
Barete AQ 9 737 1944
Pizzoli AQ 9 4326 6270
Montereale AQ 10 2581 8851
Crognaleto TE 11 1297 10148
Cagnano Amiterno AQ 12 1369 11517
Fano Adriano TE 15 296 11813
Pietracamela TE 16 271 12084
Amatrice RI 16 2657 14741
L'Aquila AQ 16 69753 84494
Scoppito AQ 17 3727 88221
Cortino TE 18 656 88877
Borbona RI 19 617 89494

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km N of L'Aquila (69753 inhabitants)
33 Km SW of Teramo (54892 inhabitants)
59 Km E of Terni (111501 inhabitants)
64 Km W of Montesilvano (53738 inhabitants)
68 Km W of Chieti (51815 inhabitants)
70 Km W of Pescara (121014 inhabitants)
74 Km SE of Foligno (57155 inhabitants)
75 Km NE of Tivoli (56533 inhabitants)
76 Km NE of Guidonia Montecelio (88673 inhabitants)
99 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 4.2
Mw 3.9
2009-04-08
22:56:50
42.5 13.37 11 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 776419
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-08 22:56:50 ± 0.06
Latitude 42.50 ± 0.00
Longitude 13.37 ± 0.01
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 776419

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 462
Semi-minor axis of confidence ellipse (meter) 213
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 74
Circular confidence region, given by single value of horizontal uncertainty (meter) 583.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 52
Number of associated phases, regardless of their use for origin computation 99
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) 1.41553
Number of stations at which the event was observed 83
Number of stations from which data was used for origin computation 34
Magnitudes information

Mw:3.9

Field Value
Value 3.9
Uncertainty
Num. used stations
Type of magnitude Mw
Reference to an origin 776419
Agency INGV
Autore TDMT Historical
Time of creation (UTC) 2013-11-05 08:43:08

ML:4.2

Field Value
Value 4.2
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 776419
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:41:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ZCCA.HHE. 2009-04-08T22:57:35.15 10.0 undecidable manual Pn 0 0 0
IV.CAFE.HHE. 2009-04-08T22:57:29.07 10.0 undecidable manual Pn 0 0 0
IV.MRB1.HHZ. 2009-04-08T22:57:26.17 10.0 undecidable manual Pn 0 0 0
IV.BLLA.EHZ. 2009-04-08T22:57:25.09 10.0 undecidable manual Pn 0 0 0
IV.OVO.HHZ. 2009-04-08T22:57:24.54 10.0 undecidable manual Pn 0 0 0
IV.MOCO.HHN. 2009-04-08T22:57:24.10 10.0 undecidable manual Pn 0 0 0
IV.PE9.EHZ. 2009-04-08T22:57:23.43 10.0 undecidable manual Pn 0 0 0
IV.STR3.BHE. 2009-04-08T22:57:22.76 10.0 undecidable manual Pn 0 0 0
IV.CASP.HHZ. 2009-04-08T22:57:22.57 10.0 undecidable manual Pn 0 0 0
IV.VENT.EHZ. 2009-04-08T22:57:21.52 10.0 undecidable manual Pn 0 0 0
IV.SFI.EHZ. 2009-04-08T22:57:21.45 10.0 undecidable manual Pn 0 0 0
IV.CSNT.HHZ. 2009-04-08T22:57:21.94 10.0 undecidable manual Pn 0 0 0
IV.SACR.HHZ. 2009-04-08T22:57:20.78 10.0 undecidable manual Pn 0 0 0
IV.ASQU.HHZ. 2009-04-08T22:57:20.52 10.0 undecidable manual Pn 0 0 0
IV.RSM.HHZ. 2009-04-08T22:57:20.13 10.0 undecidable manual Pn 0 0 0
IV.OC9.EHZ. 2009-04-08T22:57:19.93 10.0 undecidable manual Pn 0 0 0
IV.MELA.HHZ. 2009-04-08T22:57:19.86 10.0 undecidable manual Pn 0 0 0
IV.MAON.HHZ. 2009-04-08T22:57:19.47 10.0 undecidable manual Pn 0 0 0
IV.PTRJ.HHZ. 2009-04-08T22:57:18.22 10.0 undecidable manual Pn 0 0 0
IV.PESA.HHZ. 2009-04-08T22:57:18.39 10.0 undecidable manual Pn 0 0 0
IV.CRE.HHZ. 2009-04-08T22:57:18.29 10.0 undecidable manual Pn 0 0 0
IV.MODR.HHZ. 2009-04-08T22:57:17.11 10.0 undecidable manual Pn 0 0 0
IV.CIGN.HHZ. 2009-04-08T22:57:17.76 10.0 undecidable manual Pn 0 0 0
IV.MSC.EHZ. 2009-04-08T22:57:17.10 10.0 undecidable manual Pn 0 0 0
IV.ARCI.HHZ. 2009-04-08T22:57:17.36 10.0 undecidable manual Pn 0 0 0
IV.RFI.SHZ. 2009-04-08T22:57:16.31 10.0 undecidable manual Pn 0 0 0
IV.PARC.HHZ. 2009-04-08T22:57:16.50 0.1 undecidable manual Pn 325 1.4155 0.641 64
IV.BSSO.HHZ. 2009-04-08T22:57:15.56 10.0 undecidable manual Pn 0 0 0
IV.CAFI.HHZ. 2009-04-08T22:57:15.05 10.0 undecidable manual Pn 0 0 0
IV.SGG.HHE. 2009-04-08T22:57:15.59 10.0 undecidable manual Pn 0 0 0
IV.VAGA.HHZ. 2009-04-08T22:57:14.02 10.0 undecidable manual Pn 0 0 0
IV.CDCA.EHZ. 2009-04-08T22:57:14.18 0.3 undecidable manual Pn 320 1.2689 0.827 47
IV.TRIV.HHZ. 2009-04-08T22:57:13.50 10.0 undecidable manual Pn 0 0 0
IV.FSSB.HHZ. 2009-04-08T22:57:13.72 10.0 undecidable manual Pn 0 0 0
IV.SENI.EHZ. 2009-04-08T22:57:13.64 10.0 undecidable manual Pn 0 0 0
IV.PIEI.HHE. 2009-04-08T22:57:12.23 0.3 undecidable manual Pn 330 1.2024 0 60
IV.INTR.HHZ. 2009-04-08T22:57:12.10 0.6 undecidable manual Sg 140 0.6277 0.793 37
IV.FRES.HHZ. 2009-04-08T22:57:11.89 10.0 undecidable manual Pn 0 0 0
IV.LATE.HHZ. 2009-04-08T22:57:11.77 0.3 undecidable manual Pn 276 1.1565 0.34 57
IV.CESI.HHZ. 2009-04-08T22:57:11.33 0.6 undecidable manual Sg 326 0.6106 0.527 41
IV.SACS.HHZ. 2009-04-08T22:57:11.68 10.0 undecidable manual Pg 0 0 0
IV.TOLF.HHZ. 2009-04-08T22:57:10.52 10.0 undecidable manual Pg 0 0 0
IV.FDMO.HHZ. 2009-04-08T22:57:10.05 0.6 undecidable manual Sg 339 0.5765 0.244 44
IV.AOI.HHZ. 2009-04-08T22:57:10.15 10.0 undecidable manual Pg 0 0 0
IV.MGAB.HHZ. 2009-04-08T22:57:09.31 10.0 undecidable manual Pg 0 0 0
IV.ARVD.HHZ. 2009-04-08T22:57:09.60 10.0 undecidable manual Pg 0 0 0
IV.RNI2.HHZ. 2009-04-08T22:57:09.15 10.0 undecidable manual Pg 0 0 0
IV.BADI.EHN. 2009-04-08T22:57:09.50 10.0 undecidable manual Pg 0 0 0
IV.MIDA.HHZ. 2009-04-08T22:57:09.79 0.3 undecidable manual Pg 142 1.0792 -0.316 58
IV.CERA.HHZ. 2009-04-08T22:57:08.92 0.3 undecidable manual Pg 152 1.0207 -0.188 61
IV.LAV9.SHZ. 2009-04-08T22:57:08.10 10.0 undecidable manual Pg 0 0 0
IV.MURB.HHZ. 2009-04-08T22:57:08.92 10.0 undecidable manual Pg 0 0 0
IV.GIUL.HHN. 2009-04-08T22:57:07.45 0.3 undecidable manual Pg 185 0.9425 -0.313 60
IV.MNS.HHZ. 2009-04-08T22:57:07.97 0.3 undecidable manual Sg 258 0.518 -0.096 69
IV.ROM9.HHZ. 2009-04-08T22:57:07.65 10.0 undecidable manual Pg 0 0 0
IV.RDP.BHZ. 2009-04-08T22:57:06.71 0.3 undecidable manual Pg 213 0.8822 -0.025 65
IV.CING.HHZ. 2009-04-08T22:57:06.78 0.1 positive manual Pg 352 0.8867 -0.039 86
IV.MA9.HHZ. 2009-04-08T22:57:05.65 10.0 undecidable manual Pg 0 0 0
IV.POFI.HHZ. 2009-04-08T22:57:05.84 0.3 undecidable manual Pg 162 0.8202 0.162 64
IV.SNTG.SHZ. 2009-04-08T22:57:05.57 0.1 positive manual Pg 338 0.8193 -0.094 86
IV.SDI.SHZ. 2009-04-08T22:57:05.80 0.3 undecidable manual Pg 157 0.8526 -0.443 60
IV.CAFR.HHZ. 2009-04-08T22:57:05.38 10.0 undecidable manual Pg 0 0 0
IV.ASSB.HHZ. 2009-04-08T22:57:04.47 0.1 undecidable manual Pg 317 0.7527 -0.064 88
IV.VCEL.EHZ. 2009-04-08T22:57:04.77 0.6 undecidable manual Sg 106 0.3642 1.271 31
IV.GAVE.SHZ. 2009-04-08T22:57:04.62 0.6 undecidable manual Sg 299 0.3984 0.089 47
IV.NRCA.HHZ. 2009-04-08T22:57:03.92 0.3 undecidable manual Sg 331 0.384 -0.172 70
IV.GUAR.HHZ. 2009-04-08T22:57:03.38 0.1 undecidable manual Pg 183 0.7033 -0.302 85
IV.MTCE.HHZ. 2009-04-08T22:57:02.74 0.1 positive manual Pg 224 0.6619 -0.234 87
IV.INTR.HHZ. 2009-04-08T22:57:02.26 0.1 undecidable manual Pg 140 0.6277 -0.127 89
IV.CERT.HHZ. 2009-04-08T22:57:02.03 0.1 positive manual Pg 208 0.6178 -0.184 88
IV.VVLD.HHZ. 2009-04-08T22:57:02.49 0.1 undecidable manual Pg 163 0.6556 -0.368 84
IV.CESI.HHZ. 2009-04-08T22:57:02.15 0.1 undecidable manual Pg 326 0.6106 0.056 91
IV.CESX.HHZ. 2009-04-08T22:57:01.47 10.0 undecidable manual Pg 0 0 0
IV.TRTR.HHZ. 2009-04-08T22:57:01.48 10.0 undecidable manual Pg 0 0 0
IV.FDMO.HHZ. 2009-04-08T22:57:01.34 0.1 undecidable manual Pg 339 0.5765 -0.172 89
IV.FIAM.HHZ. 2009-04-08T22:57:01.56 0.6 undecidable manual Sg 219 0.2941 0.134 48
IV.OFFI.HHZ. 2009-04-08T22:57:00.92 10.0 undecidable manual Pg 0 0 0
IV.LNSS.HHZ. 2009-04-08T22:57:00.44 0.3 undecidable manual Sg 294 0.2626 -0.06 73
IV.FAGN.HHZ. 2009-04-08T22:57:00.95 0.6 undecidable manual Sg 145 0.2815 -0.098 48
IV.MNS.HHZ. 2009-04-08T22:57:00.31 0.1 positive manual Pg 258 0.518 -0.2 90
IV.PTQR.SHZ. 2009-04-08T22:56:59.60 0.1 undecidable manual Pg 177 0.4757 -0.186 91
IV.GAVE.SHZ. 2009-04-08T22:56:58.51 0.3 undecidable manual Pg 299 0.3984 0.037 71
IV.TERO.HHZ. 2009-04-08T22:56:58.36 0.6 undecidable manual Sg 54 0.2149 -0.724 41
IV.NRCA.HHZ. 2009-04-08T22:56:58.06 0.1 undecidable manual Pg 331 0.384 -0.157 93
IV.VCEL.EHZ. 2009-04-08T22:56:58.40 0.3 undecidable manual Pg 106 0.3642 0.52 65
.T0106.HLZ. 2009-04-08T22:56:58.63 0.3 undecidable manual Sg 176 0.1907 0.27 71
IV.T0104.EHN. 2009-04-08T22:56:57.09 0.3 undecidable manual Sg 189 0.1385 0.37 70
MN.AQU.HHZ. 2009-04-08T22:56:57.09 0.3 undecidable manual Sg 170 0.1457 0.157 73
IV.FAGN.HHZ. 2009-04-08T22:56:56.64 0.1 undecidable manual Pg 145 0.2815 0.177 95
IV.FIAM.HHZ. 2009-04-08T22:56:56.68 0.1 undecidable manual Pg 219 0.2941 -0.001 98
.T0108.HLN. 2009-04-08T22:56:56.93 0.3 undecidable manual Sg 178 0.1619 -0.538 67
IV.LNSS.HHZ. 2009-04-08T22:56:56.13 0.1 positive manual Pg 294 0.2626 -0.011 98
.T0106.HLZ. 2009-04-08T22:56:55.02 0.1 positive manual Pg 176 0.1907 0.112 98
IV.TERO.HHZ. 2009-04-08T22:56:55.09 0.1 positive manual Pg 54 0.2149 -0.233 95
.T0108.HLN. 2009-04-08T22:56:54.48 0.1 undecidable manual Pg 178 0.1619 0.082 99
IV.T0104.EHN. 2009-04-08T22:56:54.22 0.1 positive manual Pg 189 0.1385 0.254 96
MN.AQU.HHZ. 2009-04-08T22:56:54.28 0.1 positive manual Pg 170 0.1457 0.193 97
IV.CAMP.HHZ. 2009-04-08T22:56:54.07 0.3 undecidable manual Sg 39 0.0495 -0.326 72
IV.CAMP.HHZ. 2009-04-08T22:56:52.75 0.1 positive manual Pg 39 0.0495 0.129 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.AQU.HHN. ML:3.9 0.0645 0.26 AML other m 2009-04-08T22:56:54.28
MN.AQU.HHE. ML:3.9 0.0645 0.26 AML other m 2009-04-08T22:56:54.28
IV.TERO.HHN. ML:4 0.00072 0.72 AML other m 2009-04-08T22:56:55.09
IV.TERO.HHE. ML:4 0.09684 0.46 AML other m 2009-04-08T22:56:55.09
IV.LNSS.HHN. ML:4.5 0.143935 0.34 AML other m 2009-04-08T22:56:56.13
IV.FIAM.HHN. ML:4.2 0.067 0.75 AML other m 2009-04-08T22:56:56.68
IV.FIAM.HHE. ML:4.2 0.067 0.75 AML other m 2009-04-08T22:56:56.68
IV.NRCA.HHN. ML:4.5 0.1055 0.12 AML other m 2009-04-08T22:56:58.06
IV.NRCA.HHE. ML:4.5 0.1055 0.12 AML other m 2009-04-08T22:56:58.06
IV.VCEL.EHN. ML:4.4 0.10477 1.08 AML other m 2009-04-08T22:56:58.40
IV.VCEL.EHE. ML:4.4 0.08453 0.4 AML other m 2009-04-08T22:56:58.40
IV.MNS.HHN. ML:4.2 0.033 0.51 AML other m 2009-04-08T22:57:00.31
IV.MNS.HHE. ML:4.2 0.033 0.51 AML other m 2009-04-08T22:57:00.31
IV.OFFI.HHN. ML:0 0.13105 0.52 AML other m 2009-04-08T22:57:00.92
IV.OFFI.HHE. ML:0 0.112595 0.86 AML other m 2009-04-08T22:57:00.92
IV.FDMO.HHN. ML:3.9 0.0165 0.46 AML other m 2009-04-08T22:57:01.34
IV.FDMO.HHE. ML:3.9 0.0165 0.46 AML other m 2009-04-08T22:57:01.34
IV.CESX.HHN. ML:0 0.023 0.3 AML other m 2009-04-08T22:57:01.47
IV.CESX.HHE. ML:0 0.023 0.3 AML other m 2009-04-08T22:57:01.47
IV.TRTR.HHN. ML:0 0.089 0.57 AML other m 2009-04-08T22:57:01.48
IV.TRTR.HHE. ML:0 0.089 0.57 AML other m 2009-04-08T22:57:01.48
IV.CERT.HHN. ML:4.5 0.049 1.1 AML other m 2009-04-08T22:57:02.03
IV.CERT.HHE. ML:4.5 0.049 1.1 AML other m 2009-04-08T22:57:02.03
IV.INTR.HHN. ML:4.1 0.02 0.62 AML other m 2009-04-08T22:57:02.26
IV.INTR.HHE. ML:4.1 0.02 0.62 AML other m 2009-04-08T22:57:02.26
IV.FSSB.HHZ. Md:0 18 END duration s
TDMT - Time Domain Moment Tensor

TDMT details

Field Value
MagnitudeMw 3.85
Scalar Moment7.30844E+21 dyne-cm
Computed depth7 km
QualityAa
Variance Reduction%
Double Couple0%
CLVD0%
ISO0%
Model usedCIA
Modemanual
Statusfinal

Moment Tensor Components

Component Value
Mrr-6.0969E+21
Mtt3.3846E+21
Mpp2.7123E+21
Mrt-8.83E+20
Mrp-9.908E+20
Mtp-5.0658E+21

Nodal Planes

Name Strike Dip Rake
PN132947-67
PN211747-113

Focal Mechanism

Focal Mechanism

psmeca (GMT documentation)

7 329 47 -67 117 47 -113 7.30844 21 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://cnt.rm.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