Earthquake with magnitude of ML 3.1 on date 20-04-2008 and time 09:47:26 (Italy) in region 2 km SW Viagrande (CT)

A magnitude ML 3.1 earthquake occured in region: 2 km SW Viagrande (CT), on

  • 20-04-2008 07:47:26 (UTC)
  • 20-04-2008 09:47:26 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.6, 15.08 at 2 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
Trecastagni CT 2 10910 10910
Viagrande CT 2 8563 19473
Tremestieri Etneo CT 3 20589 40062
Aci Bonaccorsi CT 3 3524 43586
Pedara CT 3 14102 57688
San Giovanni la Punta CT 3 23060 80748
Mascalucia CT 4 31958 112706
Aci Sant'Antonio CT 4 17984 130690
Gravina di Catania CT 4 25838 156528
Sant'Agata li Battiati CT 4 9479 166007
San Gregorio di Catania CT 5 11966 177973
Valverde CT 5 7840 185813
Nicolosi CT 5 7463 193276
San Pietro Clarenza CT 6 7743 201019
Aci Catena CT 6 29851 230870
Camporotondo Etneo CT 7 5023 235893
Aci Castello CT 8 18723 254616
Acireale CT 8 52622 307238
Belpasso CT 9 28108 335346
Catania CT 11 314555 649901
Misterbianco CT 11 49410 699311
Zafferana Etnea CT 11 9517 708828
Santa Venerina CT 11 8592 717420
Ragalna CT 13 3924 721344
Motta Sant'Anastasia CT 14 12116 733460
Milo CT 14 1087 734547
Paternò CT 16 48228 782775
Santa Maria di Licodia CT 17 7641 790416
Sant'Alfio CT 17 1582 791998
Giarre CT 17 27659 819657
Riposto CT 19 14838 834495
Biancavilla CT 19 24007 858502

Municipalities with at least 50000 inhabitants

An earthquake occurred to
8 Km W of Acireale (52622 inhabitants)
11 Km N of Catania (314555 inhabitants)
63 Km N of Siracusa (122291 inhabitants)
75 Km SW of Reggio di Calabria (183035 inhabitants)
78 Km SW of Messina (238439 inhabitants)
81 Km NE of Ragusa (73313 inhabitants)
87 Km NE of Vittoria (63339 inhabitants)
87 Km NE of Modica (54633 inhabitants)
91 Km E of Caltanissetta (63360 inhabitants)
94 Km NE of Gela (75827 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
Bulletin
Rev1000
Md 3.2
ML 3.1
2008-04-20
07:47:26
37.6 15.08 2 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 685979
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2008-04-20 07:47:26 ± 0.11
Latitude 37.60 ± 0.01
Longitude 15.08 ± 0.01
Depth (km) 2 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 685979

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1000
Semi-minor axis of confidence ellipse (meter) 737
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 277
Circular confidence region, given by single value of horizontal uncertainty (meter) 1220.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 105
Number of associated phases, regardless of their use for origin computation 49
Number of defining phases 36
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.75
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 2.05495
Number of stations at which the event was observed 42
Number of stations from which data was used for origin computation 31
Magnitudes information

ML:3.1

Field Value
Value 3.1
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 685979
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 13:00:05

Md:3.2

Field Value
Value 3.2
Uncertainty 0.3
Num. used stations
Type of magnitude Md
Reference to an origin 685979
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 13:00:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ERBM.EHE. 2008-04-20T07:48:39.90 10.0 undecidable manual Pg 0 0 0
IV.SGO.SHZ. 2008-04-20T07:48:22.31 10.0 undecidable manual Pg 0 0 0
IV.GRI.EHZ. 2008-04-20T07:48:22.07 10.0 undecidable manual Sg 0 0 0
IV.SCHR.EHZ. 2008-04-20T07:48:13.97 10.0 undecidable manual Pg 0 0 0
IV.SIRI.HHE. 2008-04-20T07:48:12.36 10.0 undecidable manual Pg 0 0 0
IV.MGR.HHE. 2008-04-20T07:48:08.68 10.0 undecidable manual Pg 0 0 0
IV.ERC.SHZ. 2008-04-20T07:48:05.73 10.0 undecidable manual Pg 0 0 0
MN.TIP.HHZ. 2008-04-20T07:48:02.48 0.3 undecidable manual Pg 39 2.055 -0.044 40
IV.SERS.HHN. 2008-04-20T07:48:00.64 0.3 undecidable manual Pg 41 1.9111 0.1 43
IV.CARO.HHZ. 2008-04-20T07:47:58.15 0.3 undecidable manual Pg 28 1.8787 -1.946 19
IV.GRI.EHZ. 2008-04-20T07:47:57.13 10.0 undecidable manual Pg 0 0 0
IV.USI.SHZ. 2008-04-20T07:47:57.56 10.0 undecidable manual Pg 0 0 0
IV.FAVR.SHZ. 2008-04-20T07:47:56.11 10.0 undecidable manual Pg 0 0 0
IV.CORL.HHZ. 2008-04-20T07:47:53.84 0.3 undecidable manual Pg 282 1.4344 0.633 50
IV.PLAC.HHZ. 2008-04-20T07:47:53.07 0.3 undecidable manual Pg 51 1.3661 1.04 44
IV.HAVL.BHZ. 2008-04-20T07:47:50.72 0.6 undecidable manual Sg 177 0.6394 1.186 32
IV.ILLI.BHN. 2008-04-20T07:47:48.18 10.0 undecidable manual Sg 0 0 0
IV.ALJA.HHE. 2008-04-20T07:47:48.18 0.6 undecidable manual Pg 279 1.0603 1.38 26
IV.JOPP.HHZ. 2008-04-20T07:47:48.85 0.3 undecidable manual Pg 32 1.1898 -0.17 62
IV.HVZN.BHZ. 2008-04-20T07:47:46.12 0.6 undecidable manual Sg 215 0.5108 0.414 45
I1.IACL.BHZ. 2008-04-20T07:47:46.71 0.1 undecidable manual Pn 329 1.0945 -0.673 73
IV.IFIL.BHZ. 2008-04-20T07:47:46.03 0.1 undecidable manual Pn 338 1.0432 -0.484 80
IV.SLNA.SHZ. 2008-04-20T07:47:45.95 0.6 undecidable manual Pn 349 0.9839 0.459 41
MN.CEL.HHZ. 2008-04-20T07:47:44.61 0.1 undecidable manual Pn 44 0.9209 0.188 87
IV.ILLI.BHN. 2008-04-20T07:47:44.84 10.0 undecidable manual Pg 0 0 0
IV.GIB.EHZ. 2008-04-20T07:47:44.90 0.1 undecidable manual Pn 295 0.92 0.5 81
IV.SOI.SHZ. 2008-04-20T07:47:44.70 0.1 undecidable manual Pn 58 0.9029 0.584 79
IV.MPAZ.BHZ. 2008-04-20T07:47:43.44 0.1 undecidable manual Pg 64 0.813 0.868 72
IV.RESU.HHN. 2008-04-20T07:47:43.66 0.3 undecidable manual Pg 274 0.8112 1.11 48
I1.MSCL.BHZ. 2008-04-20T07:47:43.05 0.3 undecidable manual Pg 41 0.8445 -0.064 68
IV.NOVE.EHZ. 2008-04-20T07:47:43.63 10.0 undecidable manual Pg 0 0 0
IV.SCLL.SHZ. 2008-04-20T07:47:42.72 0.3 undecidable manual Pg 37 0.8256 -0.066 68
IV.SSY.BHZ. 2008-04-20T07:47:42.85 0.6 undecidable manual Sg 181 0.4407 -0.196 48
IV.IVPL.BHZ. 2008-04-20T07:47:41.79 0.3 undecidable manual Pg 354 0.7806 -0.236 67
IV.MSRU.BHZ. 2008-04-20T07:47:41.02 0.1 undecidable manual Pg 27 0.7455 -0.396 87
IV.HMDC.BHN. 2008-04-20T07:47:40.07 0.6 undecidable manual Pg 200 0.6817 -0.258 45
IV.MILZ.HHZ. 2008-04-20T07:47:40.00 0.1 undecidable manual Pg 10 0.6826 -0.34 89
IV.RAFF.HHE. 2008-04-20T07:47:39.83 0.3 undecidable manual Pg 237 0.6826 -0.517 64
IV.MTTG.SHZ. 2008-04-20T07:47:39.92 0.1 undecidable manual Pg 50 0.634 0.4 89
I1.HAGA.BHZ. 2008-04-20T07:47:38.69 0.6 undecidable manual Sg 169 0.3193 0.328 48
IV.HAVL.BHZ. 2008-04-20T07:47:38.91 0.1 undecidable manual Pg 177 0.6394 -0.699 80
IV.HVZN.BHZ. 2008-04-20T07:47:36.03 0.1 undecidable manual Pg 215 0.5108 -1.369 60
IV.GALF.HHZ. 2008-04-20T07:47:35.63 0.1 undecidable manual Pg 286 0.4218 0.197 97
IV.SSY.BHZ. 2008-04-20T07:47:35.59 0.1 undecidable manual Pg 181 0.4407 -0.273 95
IV.MMME.BHE. 2008-04-20T07:47:33.89 0.1 undecidable manual Pg 22 0.3633 -0.24 97
I1.HAGA.BHZ. 2008-04-20T07:47:33.03 0.1 undecidable manual Pg 169 0.3193 -0.129 100
IV.ECNV.BHE. 2008-04-20T07:47:33.63 0.3 undecidable manual Pg 269 0.2914 1.093 54
IV.ESLN.BHZ. 2008-04-20T07:47:31.33 0.6 undecidable manual Sg 318 0.1259 0.377 49
IV.ESLN.BHZ. 2008-04-20T07:47:27.80 0.1 undecidable manual Pg 318 0.1259 -1.08 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ESLN.BHN. ML:3.9 0.091 0.75 AML other m 2008-04-20T07:47:27.80
IV.ESLN.BHE. ML:3.9 0.091 0.75 AML other m 2008-04-20T07:47:27.80
I1.HAGA.BHN. ML:2.8 0.003 0.94 AML other m 2008-04-20T07:47:33.03
I1.HAGA.BHE. ML:2.8 0.00231 0.5 AML other m 2008-04-20T07:47:33.03
IV.ECNV.BHN. ML:3.2 0.009185 0.9 AML other m 2008-04-20T07:47:33.63
IV.ECNV.BHE. Md:3.4 141 END duration s
IV.MMME.BHN. ML:3.3 0.005395 0.44 AML other m 2008-04-20T07:47:33.89
IV.MMME.BHE. Md:3.4 137 END duration s
IV.SSY.BHN. ML:3.3 0.008385 0.4 AML other m 2008-04-20T07:47:35.59
IV.SSY.BHE. ML:3.3 0.003665 0.5 AML other m 2008-04-20T07:47:35.59
IV.GALF.HHN. ML:3.4 0.007225 0.68 AML other m 2008-04-20T07:47:35.63
IV.GALF.HHE. ML:3.4 0.008805 0.72 AML other m 2008-04-20T07:47:35.63
IV.HVZN.BHN. ML:3.2 0.00413 0.6 AML other m 2008-04-20T07:47:36.03
IV.HVZN.BHE. ML:3.2 0.003615 0.8 AML other m 2008-04-20T07:47:36.03
IV.HAVL.BHN. ML:3.3 0.002925 0.36 AML other m 2008-04-20T07:47:38.91
IV.HAVL.BHE. ML:3.3 0.002975 0.88 AML other m 2008-04-20T07:47:38.91
IV.RAFF.HHE. ML:2.7 0.00082 0.58 AML other m 2008-04-20T07:47:39.83
IV.MTTG.SHZ. Md:3.1 92.3 END duration s
IV.MILZ.HHN. ML:2.8 0.00113 0.62 AML other m 2008-04-20T07:47:40.00
IV.MILZ.HHE. ML:2.8 0.000875 1 AML other m 2008-04-20T07:47:40.00
IV.MSRU.BHN. ML:3 0.000935 0.42 AML other m 2008-04-20T07:47:41.02
IV.MSRU.BHE. ML:3 0.001735 0.5 AML other m 2008-04-20T07:47:41.02
IV.IVPL.BHN. ML:3.2 0.00212 0.48 AML other m 2008-04-20T07:47:41.79
IV.IVPL.BHE. ML:3.2 0.002095 0.52 AML other m 2008-04-20T07:47:41.79
IV.SCLL.SHZ. Md:3 74.1 END duration s
I1.MSCL.BHN. ML:3.1 0.001495 0.66 AML other m 2008-04-20T07:47:43.05
I1.MSCL.BHE. ML:3.1 0.00119 0.58 AML other m 2008-04-20T07:47:43.05
IV.MPAZ.BHN. ML:2.8 0.00087 0.46 AML other m 2008-04-20T07:47:43.44
IV.MPAZ.BHE. ML:2.8 0.000705 0.62 AML other m 2008-04-20T07:47:43.44
MN.CEL.HHN. ML:3 0.00095 0.6 AML other m 2008-04-20T07:47:44.61
MN.CEL.HHE. ML:3 0.000805 0.56 AML other m 2008-04-20T07:47:44.61
IV.SOI.SHZ. Md:3.2 94.1 END duration s
IV.ILLI.BHN. Md:0 62 END duration s
IV.ILLI.BHE. ML:0 0.002165 1.12 AML other m 2008-04-20T07:47:44.84
IV.GIB.EHN. ML:3.4 0.002435 0.56 AML other m 2008-04-20T07:47:44.90
IV.GIB.EHE. ML:3.4 0.00212 0.72 AML other m 2008-04-20T07:47:44.90
IV.SLNA.SHZ. Md:3.5 146 END duration s
IV.IFIL.BHN. ML:3.3 0.00143 0.5 AML other m 2008-04-20T07:47:46.03
IV.IFIL.BHE. ML:3.3 0.00161 0.52 AML other m 2008-04-20T07:47:46.03
I1.IACL.BHN. ML:3.2 0.001635 0.58 AML other m 2008-04-20T07:47:46.71
I1.IACL.BHE. ML:3.2 0.000895 0.9 AML other m 2008-04-20T07:47:46.71
IV.ALJA.HHN. ML:2.7 0.00022 0.88 AML other m 2008-04-20T07:47:48.18
IV.ALJA.HHE. Md:3.4 128 END duration s
IV.JOPP.HHN. ML:2.9 0.00064 0.56 AML other m 2008-04-20T07:47:48.85
IV.JOPP.HHE. ML:2.9 0.00045 0.72 AML other m 2008-04-20T07:47:48.85
IV.PLAC.HHN. ML:2.7 0.00023 0.84 AML other m 2008-04-20T07:47:53.07
IV.PLAC.HHE. ML:2.7 0.000235 0.58 AML other m 2008-04-20T07:47:53.07
IV.GRI.EHN. ML:0 0.000445 0.88 AML other m 2008-04-20T07:47:57.13
IV.GRI.EHE. ML:0 0.00034 0.52 AML other m 2008-04-20T07:47:57.13
IV.CARO.HHN. ML:3.4 0.00063 0.5 AML other m 2008-04-20T07:47:58.15
IV.CARO.HHE. ML:3.4 0.00066 0.9 AML other m 2008-04-20T07:47:58.15
IV.SERS.HHN. Md:3.1 75.5 END duration s
IV.SERS.HHE. ML:2.7 0.00015 0.76 AML other m 2008-04-20T07:48:00.64
IV.MGR.HHN. ML:0 7.5E-5 0.54 AML other m 2008-04-20T07:48:08.68
IV.MGR.HHE. Md:0 78 END duration s
IV.SIRI.HHN. ML:0 0.0001 0.64 AML other m 2008-04-20T07:48:12.36
IV.SIRI.HHE. Md:0 84 END duration s
IV.SCHR.EHN. ML:0 8.0E-5 1.04 AML other m 2008-04-20T07:48:13.97
IV.SCHR.EHE. ML:0 8.0E-5 0.64 AML other m 2008-04-20T07:48:13.97
IV.ESLN.BHZ. Md:3.3 123 END duration s
I1.HAGA.BHZ. Md:3.3 121 END duration s
IV.SSY.BHZ. Md:3.3 117 END duration s
IV.GALF.HHZ. Md:3.3 121 END duration s
IV.HVZN.BHZ. Md:3.3 121 END duration s
IV.HAVL.BHZ. Md:3.2 100 END duration s
IV.MILZ.HHZ. Md:2.9 74 END duration s
IV.HMDC.BHN. Md:3.3 116 END duration s
IV.MSRU.BHZ. Md:3.2 98.2 END duration s
IV.IVPL.BHZ. Md:1.8 15.2 END duration s
I1.MSCL.BHZ. Md:3 78.5 END duration s
IV.MPAZ.BHZ. Md:3 82.7 END duration s
IV.RESU.HHN. Md:3.5 137 END duration s
MN.CEL.HHZ. Md:3 80.6 END duration s
IV.GIB.EHZ. Md:3.4 127 END duration s
IV.IFIL.BHZ. Md:3 78.2 END duration s
I1.IACL.BHZ. Md:3.4 126 END duration s
IV.JOPP.HHZ. Md:3 70.7 END duration s
IV.PLAC.HHZ. Md:3 71.4 END duration s
IV.CORL.HHZ. Md:3.2 102 END duration s
IV.FAVR.SHZ. Md:0 69 END duration s
IV.GRI.EHZ. Md:0 63 END duration s
IV.USI.SHZ. Md:0 46 END duration s
IV.CARO.HHZ. Md:3.1 82.3 END duration s
MN.TIP.HHZ. Md:3.1 77.4 END duration s
IV.ERC.SHZ. Md:0 63 END duration s
IV.SCHR.EHZ. Md:0 32 END duration s
IV.SGO.SHZ. Md:0 33 END duration s
IV.ERBM.EHE. Md:0 14 END duration s
TDMT - Time Domain Moment Tensor
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