Earthquake with magnitude of ML 2.9 on date 22-10-2020 and time 21:43:19 (Italy) in region Tirreno Meridionale (MARE)

A magnitude ML 2.9 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 22-10-2020 19:43:19 (UTC)
  • 22-10-2020 21:43:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.782, 13.933 at 25 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
86 Km NE of Bagheria (55387 inhabitants)
89 Km NE of Palermo (674435 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 3 days preceding this event

Earthquakes of the 3 days preceding this event *

This map reports the earthquake epicenters located in the 72 hours (3 days) preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. 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 90 days preceding this event

Earthquakes of the 90 days preceding this event *

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located in the 90 days preceding the time of the current earthquake occurrence, 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 from 1985 to the date of the event

Earthquakes from 1985 to the date of the event *

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.
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 https://emidius.mi.ingv.it/CPTI15-DBMI15/) with estimated magnitude ≥ 5.0 since 1000 AD until 2014. 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
Shakemap
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 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
ML 2.9 2020-10-22
19:43:19
38.7822 13.9333 25 2021-02-26
14:56:20
Bollettino Sismico Italiano INGV 87376281
Reviewed
Rev100
ML 2.9 2020-10-22
19:43:19
38.7563 13.9263 34 2020-10-22
20:00:49
Sala Sismica INGV-Roma 84035111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-22 19:43:19 ± 0.14
Latitude 38.7822 ± 0.0090
Longitude 13.9333 ± 0.0081
Depth (km) 25 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 87376281

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 828
Semi-minor axis of confidence ellipse (meter) 671
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 171
Circular confidence region, given by single value of horizontal uncertainty (meter) 830
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
Number of associated phases, regardless of their use for origin computation 53
Number of defining phases 53
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.44
Epicentral distance of station closest to the epicenter (degree) 0.41279
Epicentral distance of station farthest from the epicenter (degree) 4.33473
Number of stations at which the event was observed 44
Number of stations from which data was used for origin computation 44
Magnitudes information

ML:2.9

Field Value
Value 2.9
Uncertainty 0.4
Num. used stations 85
Type of magnitude ML
Reference to an origin 87376281
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-22 12:50:52

ML:2.9

Field Value
Value 2.9
Uncertainty 0.4
Num. used stations 88
Type of magnitude ML
Reference to an origin 84035111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-22 20:00:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.AGLI.HHZ. 2020-10-22T19:44:24.99 0.3 undecidable manual P 304 4.3347 54 0.25 17
IV.SIRI.HHZ. 2020-10-22T19:43:54.13 0.1 negative manual P 46 2.0451 54 1.01 43
IV.CELI.HHZ. 2020-10-22T19:43:54.05 0.1 undecidable manual P 72 2.0918 54 0.29 53
IV.HAVL.HHZ. 2020-10-22T19:43:53.55 0.3 undecidable manual P 152 2.0487 54 0.38 41
IV.PLAC.HHZ. 2020-10-22T19:43:52.14 0.1 positive manual P 99 1.9839 54 -0.13 59
IV.SPS2.HHZ. 2020-10-22T19:43:51.68 0.1 positive manual P 74 1.9353 54 0.08 63
MN.CUC.HHZ. 2020-10-22T19:43:51.57 0.1 positive manual P 50 1.8922 54 0.57 58
IV.CAR1.HHZ. 2020-10-22T19:43:50.18 0.1 positive manual P 74 1.8301 54 0.03 68
IV.MSFR.HHZ. 2020-10-22T19:43:49.14 0.3 undecidable manual S 145 0.9083 99 -0.07 73
IV.SCIAR.HHZ. 2020-10-22T19:43:49.18 1.0 undecidable manual S 190 0.8535 100 1.57 13
IV.GRIS.HNE. 2020-10-22T19:43:49.44 0.1 positive manual P 57 1.7672 54 0.16 69
IV.CSLB.HHZ. 2020-10-22T19:43:48.91 0.6 undecidable manual S 173 0.8499 100 1.4 29
IV.HCRL.HHZ. 2020-10-22T19:43:48.83 0.1 undecidable manual P 150 1.7303 54 0.06 72
IV.RAFF.HHZ. 2020-10-22T19:43:48.10 0.3 undecidable manual P 168 1.5945 54 1.2 39
IV.CET2.HHZ. 2020-10-22T19:43:48.92 0.1 positive manual P 64 1.7348 54 0.09 71
IV.BULG.HHN. 2020-10-22T19:43:48.76 0.3 undecidable manual P 40 1.7087 54 0.28 52
IV.GIB.HHZ. 2020-10-22T19:43:47.02 1.0 undecidable manual S 175 0.795 101 1.12 17
IV.HLNI.HHZ. 2020-10-22T19:43:47.47 0.1 negative manual P 152 1.6116 54 0.34 73
IV.CPTP.HHZ. 2020-10-22T19:43:46.51 0.3 undecidable manual P 172 1.3859 54 2.5 15
MN.CEL.HHZ. 2020-10-22T19:43:46.32 0.1 positive manual P 108 1.6188 54 -0.91 58
IV.PLLN.EHZ. 2020-10-22T19:43:46.31 0.6 undecidable manual S 168 0.8058 101 0.09 49
IV.MPG.HHZ. 2020-10-22T19:43:45.33 0.6 undecidable manual S 216 0.7653 101 0.28 48
IV.JOPP.HNN. 2020-10-22T19:43:45.17 0.1 positive manual P 96 1.5324 54 -0.87 62
X3.T1582.EHZ. 2020-10-22T19:43:44.88 0.3 undecidable manual P 222 1.376 54 1.01 48
X3.T1581.EHZ. 2020-10-22T19:43:43.36 0.1 undecidable manual P 227 1.3472 54 -0.12 87
IV.MSRU.HHZ. 2020-10-22T19:43:42.20 0.1 positive manual P 112 1.3355 54 -1.12 61
IV.EPZF.HHZ. 2020-10-22T19:43:42.08 0.1 undecidable manual P 143 1.2006 54 0.62 80
IV.CRJA.HHZ. 2020-10-22T19:43:42.24 0.3 undecidable manual P 217 1.2213 54 0.51 62
IV.AIO.HHZ. 2020-10-22T19:43:41.98 0.1 undecidable manual P 128 1.3013 54 -0.87 69
IV.GALF.HHZ. 2020-10-22T19:43:41.52 0.1 negative manual P 155 1.1808 54 0.35 87
IV.MTGR.HHZ. 2020-10-22T19:43:41.81 0.1 undecidable manual P 226 1.2788 54 -0.72 74
IV.USI.HHZ. 2020-10-22T19:43:40.48 0.3 undecidable manual S 263 0.5927 105 0.42 72
IV.RESU.HHZ. 2020-10-22T19:43:40.94 0.1 undecidable manual P 175 1.1385 97 0.36 87
IV.MBFT.HHZ. 2020-10-22T19:43:39.73 0.1 positive manual P 223 1.1349 97 -0.78 76
IV.MILZ.HHZ. 2020-10-22T19:43:39.15 0.3 positive manual P 116 1.1358 97 -1.38 42
IV.IFIL.HHZ. 2020-10-22T19:43:39.43 0.1 undecidable manual S 113 0.5459 106 0.7 88
IV.CORL.HHZ. 2020-10-22T19:43:38.29 0.6 undecidable manual P 209 1.0153 98 -0.19 47
IV.MUCR.HHZ. 2020-10-22T19:43:38.26 0.1 positive manual P 135 1.0432 98 -0.69 80
IV.IST3.HHZ. 2020-10-22T19:43:38.50 0.1 undecidable manual P 89 1.0108 98 0.1 95
IV.PETRA.HHZ. 2020-10-22T19:43:37.33 0.1 undecidable manual P 171 0.9587 99 -0.19 94
IV.IVGP.HHZ. 2020-10-22T19:43:36.61 0.3 undecidable manual P 115 0.8903 99 0.24 71
IV.MSFR.HHZ. 2020-10-22T19:43:36.31 0.1 negative manual P 145 0.9083 99 -0.36 92
IV.IVPL.HHZ. 2020-10-22T19:43:36.29 0.1 positive manual P 116 0.9128 99 -0.46 90
IV.CSLB.HHZ. 2020-10-22T19:43:35.00 0.1 undecidable manual P 173 0.8499 100 -0.69 84
IV.IACL.HHZ. 2020-10-22T19:43:35.25 0.3 undecidable manual S 127 0.4128 112 0.26 78
IV.SCIAR.HHZ. 2020-10-22T19:43:35.91 0.1 negative manual P 190 0.8535 100 0.16 96
IV.ILOS.HHZ. 2020-10-22T19:43:35.93 0.1 positive manual P 113 0.8607 100 0.06 99
IV.PLLN.EHZ. 2020-10-22T19:43:34.65 0.1 undecidable manual P 168 0.8058 101 -0.3 95
IV.GIB.HHZ. 2020-10-22T19:43:34.44 0.1 undecidable manual P 175 0.795 101 -0.32 95
IV.MPG.HHZ. 2020-10-22T19:43:33.68 0.3 undecidable manual P 216 0.7653 101 -0.58 67
IV.USI.HHZ. 2020-10-22T19:43:31.23 0.3 undecidable manual P 263 0.5927 105 -0.16 77
IV.IFIL.HHZ. 2020-10-22T19:43:30.92 0.1 positive manual P 113 0.5459 106 0.3 100
IV.IACL.HHZ. 2020-10-22T19:43:28.61 0.3 undecidable manual P 127 0.4128 112 0.15 80
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.IACL.HHN. ML:3.7 0.012817055 0.3456 AML other m 2020-10-22T19:43:36.99
IV.IACL.HHE. ML:3.6 0.00904824 0.2816 AML other m 2020-10-22T19:43:37.18
IV.IFIL.HHN. ML:3.5 0.0056449025 0.448 AML other m 2020-10-22T19:43:42.59
IV.USI.HHN. ML:3.4 0.003945 0.28 AML other m 2020-10-22T19:43:43.16
IV.IFIL.HHE. ML:3.8 0.011385276 0.3456 AML other m 2020-10-22T19:43:43.23
IV.USI.HHE. ML:2.7 0.000885 0.32 AML other m 2020-10-22T19:43:45.28
IV.MPG.HHN. ML:2.8 0.000822 1.66 AML other m 2020-10-22T19:43:48.07
IV.MPG.HHE. ML:2.7 0.0006524883 0.4992 AML other m 2020-10-22T19:43:46.49
IV.GIB.HHN. ML:3.6 0.004465 0.46 AML other m 2020-10-22T19:43:50.28
IV.CSLB.HHE. ML:2.9 0.0009375 0.34 AML other m 2020-10-22T19:43:50.37
IV.CSLB.HHN. ML:3.1 0.001228495 0.6016 AML other m 2020-10-22T19:43:51.22
IV.GIB.HHE. ML:3.6 0.0049125315 0.4736 AML other m 2020-10-22T19:43:52.24
IV.SCIAR.HHE. ML:3 0.0010614452 0.3968 AML other m 2020-10-22T19:43:52.30
IV.SCIAR.HNE. ML:3 0.00116 0.58 AML other m 2020-10-22T19:43:52.31
IV.PLLN.EHN. ML:3.8 0.00704 0.6 AML other m 2020-10-22T19:43:52.34
IV.SCIAR.HHN. ML:3.2 0.00156 0.38 AML other m 2020-10-22T19:43:52.96
IV.SCIAR.HNN. ML:3.2 0.001495 0.4 AML other m 2020-10-22T19:43:52.77
IV.PLLN.EHE. ML:3.4 0.00279 0.6 AML other m 2020-10-22T19:43:52.99
IV.MSFR.HHN. ML:2.6 0.00037307455 1.1776 AML other m 2020-10-22T19:43:55.92
IV.IST3.HHE. ML:2.8 0.0005315355 0.1152 AML other m 2020-10-22T19:43:54.85
IV.PETRA.HHN. ML:3.6 0.003735 0.56 AML other m 2020-10-22T19:43:56.30
IV.IVPL.HHN. ML:3 0.000895 0.7 AML other m 2020-10-22T19:43:57.72
IV.IST3.HHN. ML:2.8 0.0005584322 0.1792 AML other m 2020-10-22T19:44:01.48
IV.MUCR.HHN. ML:3.4 0.0017148425 0.6528 AML other m 2020-10-22T19:43:57.90
IV.PETRA.HHE. ML:3.6 0.003295 0.42 AML other m 2020-10-22T19:43:58.68
IV.MUCR.HHE. ML:3.2 0.0011495 1.36 AML other m 2020-10-22T19:44:00.25
IV.MBFT.HHE. ML:2.5 0.00019722965 0.4608 AML other m 2020-10-22T19:44:00.74
IV.ILOS.HHN. ML:3.5 0.003055 1.6 AML other m 2020-10-22T19:44:00.01
IV.MBFT.HHN. ML:2.5 0.00019418715 0.5248 AML other m 2020-10-22T19:44:00.06
IV.MILZ.HHN. ML:3 0.0007845 0.52 AML other m 2020-10-22T19:44:01.49
IV.CORL.HHE. ML:3 0.0009384773 0.3328 AML other m 2020-10-22T19:43:59.49
IV.MTGR.HHE. ML:2.2 7.9393005E-5 0.4992 AML other m 2020-10-22T19:44:14.62
IV.IVPL.HHE. ML:2.9 0.000754 0.52 AML other m 2020-10-22T19:44:02.77
IV.AIO.HHN. ML:2.7 0.00029556875 0.32 AML other m 2020-10-22T19:44:00.68
IV.RESU.HHN. ML:3.3 0.00121 0.62 AML other m 2020-10-22T19:44:03.46
IV.MILZ.HHE. ML:3.3 0.001286 0.38 AML other m 2020-10-22T19:44:03.41
IV.EPZF.HHN. ML:3.3 0.0011056991 0.384 AML other m 2020-10-22T19:44:05.07
IV.MTGR.HHN. ML:2.4 0.0001339629 0.4608 AML other m 2020-10-22T19:44:11.58
IV.AIO.HHE. ML:2.7 0.0002645654 0.2688 AML other m 2020-10-22T19:44:05.58
IV.ILOS.HNN. ML:3.5 0.002916063 0.5504 AML other m 2020-10-22T19:44:06.21
IV.EMSG.HHE. ML:0 0.00168 0.44 AML other m 2020-10-22T19:44:06.63
IV.CRJA.HHN. ML:2.9 0.0005375 1.38 AML other m 2020-10-22T19:44:07.21
IV.MSRU.HHN. ML:2.7 0.00028110875 0.5376 AML other m 2020-10-22T19:44:08.01
IV.ILOS.HNE. ML:3.4 0.002535 0.64 AML other m 2020-10-22T19:44:08.50
IV.ILOS.HHE. ML:3.4 0.00269 0.64 AML other m 2020-10-22T19:44:08.51
IV.MSRU.HHE. ML:2.8 0.0003565 0.44 AML other m 2020-10-22T19:44:08.60
X3.T1581.EHE. ML:2.9 0.0004075012 0.6016 AML other m 2020-10-22T19:44:10.89
X3.T1581.EHN. ML:2.8 0.000279 0.8 AML other m 2020-10-22T19:44:11.49
IV.CET2.HHN. ML:2.7 0.0001667876 0.1664 AML other m 2020-10-22T19:44:13.02
IV.GALF.HHE. ML:3.4 0.001485 1.32 AML other m 2020-10-22T19:44:11.32
IV.CET2.HHE. ML:2.4 8.6553275E-5 0.1792 AML other m 2020-10-22T19:44:11.56
IV.RAFF.HHN. ML:2.8 0.000245 0.66 AML other m 2020-10-22T19:44:11.93
IV.HLNI.HHE. ML:2.5 0.0001099873 0.3584 AML other m 2020-10-22T19:44:15.38
IV.RESU.HHE. ML:3 0.00069 0.6 AML other m 2020-10-22T19:44:13.01
IV.CAR1.HHN. ML:3.1 0.0003545 0.26 AML other m 2020-10-22T19:44:13.46
IV.CAR1.HNN. ML:3.2 0.0004485 0.26 AML other m 2020-10-22T19:44:13.47
IV.CRJA.HHE. ML:2.9 0.0005255 0.72 AML other m 2020-10-22T19:44:13.50
IV.CAR1.HHE. ML:3.2 0.000408 0.28 AML other m 2020-10-22T19:44:14.31
IV.CAR1.HNE. ML:3.1 0.0003625 0.26 AML other m 2020-10-22T19:44:14.32
IV.GALF.HHN. ML:3.3 0.001291017 0.576 AML other m 2020-10-22T19:44:15.24
IV.HLNI.HHN. ML:2.5 0.0001256344 0.4736 AML other m 2020-10-22T19:44:17.89
MN.CUC.HHE. ML:2.3 5.615E-5 0.32 AML other m 2020-10-22T19:44:16.73
IV.SPS2.HHN. ML:2.6 0.000114 0.34 AML other m 2020-10-22T19:44:16.76
IV.SPS2.HHE. ML:2.5 7.55E-5 0.28 AML other m 2020-10-22T19:44:16.84
IV.EMSG.HHN. ML:0 0.001155 1.34 AML other m 2020-10-22T19:44:17.85
IV.PLAC.HHE. ML:2.4 6.005E-5 0.78 AML other m 2020-10-22T19:44:17.76
MN.CUC.HHN. ML:2 3.235E-5 0.44 AML other m 2020-10-22T19:44:18.10
IV.CPTP.HHN. ML:2.8 0.0003205 1.48 AML other m 2020-10-22T19:44:18.97
IV.HCRL.HHE. ML:2.7 0.000156 0.7 AML other m 2020-10-22T19:44:19.64
IV.CELI.HHE. ML:2.2 3.285E-5 0.24 AML other m 2020-10-22T19:44:21.09
IV.PLAC.HHN. ML:2.4 5.475E-5 0.46 AML other m 2020-10-22T19:44:21.46
IV.CELI.HHN. ML:2.1 2.724565E-5 0.9856 AML other m 2020-10-22T19:44:33.03
IV.CPTP.HHE. ML:2.8 0.0003045 1.12 AML other m 2020-10-22T19:44:22.13
MN.CEL.HNE. ML:2.5 0.00010465 0.72 AML other m 2020-10-22T19:44:22.57
IV.HCRL.HHN. ML:2.6 0.0001235 0.4 AML other m 2020-10-22T19:44:22.32
IV.SIRI.HHE. ML:2.3 4.6345505E-5 0.2816 AML other m 2020-10-22T19:44:23.13
IV.ORI.HHE. ML:0 0.0002095 1.94 AML other m 2020-10-22T19:44:23.98
IV.SIRI.HHN. ML:2.2 4.04E-5 0.84 AML other m 2020-10-22T19:44:24.36
IV.RAFF.HHE. ML:3 0.00035 0.7 AML other m 2020-10-22T19:44:24.82
MN.CEL.HHN. ML:2.4 9.691434E-5 0.7168 AML other m 2020-10-22T19:44:25.64
IV.ORI.HHN. ML:0 0.000143 0.24 AML other m 2020-10-22T19:44:30.21
IV.HAVL.HHE. ML:2.9 0.0001655 0.28 AML other m 2020-10-22T19:44:34.31
IV.HAVL.HHN. ML:2.8 0.000159 1.2 AML other m 2020-10-22T19:44:37.35
IV.MBFT.HNE. ML:2.2 0.00010467255 0.9728 AML other m 2020-10-22T19:44:03.16
IV.GALF.HNN. ML:2.5 0.0001992078 0.64 AML other m 2020-10-22T19:44:15.85
IV.GALF.HNE. ML:2.5 0.00021018215 0.7424 AML other m 2020-10-22T19:44:11.30
IV.PLAC.HNE. ML:2.6 9.5468215E-5 0.9856 AML other m 2020-10-22T19:44:19.72
IV.SIRI.HNE. ML:2.4 5.40597485E-5 0.3072 AML other m 2020-10-22T19:44:23.13
IV.SIRI.HNN. ML:2.2 4.121439E-5 0.5376 AML other m 2020-10-22T19:44:26.63
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions *

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 miniseed + resp format Download