INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 3.0 on date 20-11-2018 and time 17:50:18 (Italy) in region 2 km E Albanella (SA)

A magnitude ML 3.0 earthquake occured in region: 2 km E Albanella (SA), on

  • 20-11-2018 16:50:18 (UTC)
  • 20-11-2018 17:50:18 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.48, 15.14 at 9 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Albanella SA 2 6513 6513
Altavilla Silentina SA 5 7051 13564
Controne SA 7 875 14439
Roccadaspide SA 8 7209 21648
Capaccio Paestum SA 8 22810 44458
Castelcivita SA 8 1739 46197
Trentinara SA 9 1646 47843
Giungano SA 10 1280 49123
Castel San Lorenzo SA 11 2471 51594
Aquara SA 11 1545 53139
Postiglione SA 12 2151 55290
Serre SA 12 3995 59285
Monteforte Cilento SA 14 564 59849
Cicerale SA 15 1220 61069
Ottati SA 15 618 61687
Felitto SA 15 1283 62970
Ogliastro Cilento SA 16 2270 65240
Bellosguardo SA 16 794 66034
Sicignano degli Alburni SA 17 3519 69553
Eboli SA 17 40115 109668
Magliano Vetere SA 17 695 110363
Prignano Cilento SA 18 1018 111381
Sant'Angelo a Fasanella SA 18 635 112016
Agropoli SA 19 21481 133497
Torchiara SA 19 1871 135368
Battipaglia SA 19 50786 186154
Roscigno SA 20 817 186971

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km SE of Battipaglia (50786 inhabitants)
39 Km SE of Salerno (135261 inhabitants)
44 Km SE of Cava de' Tirreni (53659 inhabitants)
56 Km SE of Avellino (54857 inhabitants)
59 Km W of Potenza (67122 inhabitants)
60 Km SE of Scafati (50787 inhabitants)
60 Km E of Castellammare di Stabia (66466 inhabitants)
73 Km E of Torre del Greco (86275 inhabitants)
76 Km SE of Ercolano (53709 inhabitants)
76 Km SE of Portici (55274 inhabitants)
78 Km SE of Benevento (60091 inhabitants)
83 Km SE of Acerra (59573 inhabitants)
85 Km E of Napoli (974074 inhabitants)
85 Km SE of Afragola (65057 inhabitants)
86 Km SE of Casoria (77642 inhabitants)
92 Km SE of Marano di Napoli (59874 inhabitants)
93 Km SE of Giugliano in Campania (122974 inhabitants)
95 Km SE of Caserta (76326 inhabitants)
96 Km SE of Aversa (53047 inhabitants)
97 Km E of Pozzuoli (81661 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.
Earthquakes since 1000 AD until 2014

Earthquakes since 1000 AD until 2014

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

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 100 ML 3.0 2018-11-20
16:50:18
40.48 15.14 9 2018-11-20
17:09:49
Sala Sismica INGV-Roma 63237511
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-11-20 16:50:18 ± 0.23
Latitude 40.48 ± 0.01
Longitude 15.14 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 63237511

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1220
Semi-minor axis of confidence ellipse (meter) 529
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 80
Circular confidence region, given by single value of horizontal uncertainty (meter) 1220
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 169
Number of associated phases, regardless of their use for origin computation 47
Number of defining phases 31
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) 1.28423
Number of stations at which the event was observed 34
Number of stations from which data was used for origin computation 18
Magnitude information

ML:3

Field Value
Value 3
Uncertainty 0.2
Num. used stations 57
Type of magnitude ML
Reference to an origin 63237511
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-11-20 17:09:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.BRSN.EHZ. 2018-11-20T16:52:16.68 3.0 undecidable manual Sn -2.95 0
IV.MTGR.HHZ. 2018-11-20T16:51:42.40 3.0 undecidable manual Sn -6.5 0
IV.APEC.HHZ. 2018-11-20T16:51:28.60 3.0 undecidable manual Pg 11.94 0
AC.SRN.HHZ. 2018-11-20T16:51:25.53 3.0 undecidable manual Pg 8.95 0
IV.NOCI.HHZ. 2018-11-20T16:51:05.17 3.0 undecidable manual S -0.69 0
IV.GIGS.HHZ. 2018-11-20T16:51:03.94 3.0 undecidable manual Pg 6.34 0
IV.LTRZ.EHZ. 2018-11-20T16:51:00.47 0.6 undecidable manual S 84 1.2842 50 0.66 35
GE.MATE.HHZ. 2018-11-20T16:50:58.25 0.6 undecidable manual S 81 1.2024 50 0.85 33
IV.MRVN.HHZ. 2018-11-20T16:50:51.51 0.6 undecidable manual S 54 0.9902 50 0.41 40
IV.CAR1.HHZ. 2018-11-20T16:50:46.79 3.0 negative manual P 1.47 0
IV.PALZ.HHZ. 2018-11-20T16:50:45.16 0.3 undecidable manual S 53 0.777 50 0.35 64
IV.MSAG.HHZ. 2018-11-20T16:50:43.88 3.0 negative manual P -0.17 0
IV.MODR.HHZ. 2018-11-20T16:50:42.50 3.0 undecidable manual P 0
IV.LTRZ.EHZ. 2018-11-20T16:50:42.64 0.3 undecidable manual P 84 1.2842 50 0.17 59
IV.MELA.HHZ. 2018-11-20T16:50:42.79 3.0 positive manual P 0.26 0
GE.MATE.HHZ. 2018-11-20T16:50:41.45 0.3 undecidable manual P 81 1.2024 50 0.37 58
IV.ACER.HHZ. 2018-11-20T16:50:41.90 0.6 undecidable manual S 63 0.6835 50 -0.14 46
IV.VAGA.HNZ. 2018-11-20T16:50:41.56 1.0 undecidable manual P 324 1.1565 50 1.27 13
IV.CPOZ.HHZ. 2018-11-20T16:50:40.93 3.0 undecidable manual P 0
IV.SGG.HNN. 2018-11-20T16:50:40.17 1.0 undecidable manual P 328 1.0711 50 1.34 13
IV.SALB.HHZ. 2018-11-20T16:50:39.32 1.0 undecidable manual P 123 1.1026 50 -0.05 21
IV.MCEL.HHZ. 2018-11-20T16:50:38.16 0.3 undecidable manual S 107 0.5297 50 0.69 61
IV.SACR.HNZ. 2018-11-20T16:50:38.79 1.0 undecidable manual P 341 0.9722 50 1.65 11
IV.MRVN.HHZ. 2018-11-20T16:50:37.67 0.3 undecidable manual P 54 0.9902 50 0.23 63
IV.MIGL.HHZ. 2018-11-20T16:50:37.77 0.6 undecidable manual P 82 0.9982 50 0.18 42
IV.MTSN.HHZ. 2018-11-20T16:50:36.99 0.6 undecidable manual S 114 0.5153 50 -0.04 48
IV.SGTA.HHZ. 2018-11-20T16:50:35.06 3.0 undecidable manual P 2.09 0
IV.BULG.HHZ. 2018-11-20T16:50:35.40 0.3 undecidable manual S 155 0.4416 50 0.53 66
IV.MGR.HHZ. 2018-11-20T16:50:34.53 0.3 undecidable manual S 137 0.4676 50 -1.09 52
IV.VITU.HHZ. 2018-11-20T16:50:34.31 3.0 negative manual P -1.73 0
IV.PALZ.HHZ. 2018-11-20T16:50:33.27 0.6 undecidable manual P 53 0.777 50 -0.54 41
IV.SLCN.HHZ. 2018-11-20T16:50:32.92 0.3 undecidable manual S 103 0.3885 50 -0.36 70
IV.MRB1.HHZ. 2018-11-20T16:50:32.11 3.0 positive manual P -0.94 0
IV.PAOL.HHZ. 2018-11-20T16:50:32.98 3.0 negative manual P -1.32 0
IV.ACER.HHZ. 2018-11-20T16:50:31.79 0.3 positive manual P 63 0.6835 50 -0.42 65
IV.MCRV.HHZ. 2018-11-20T16:50:29.99 0.3 undecidable manual S 5 0.3031 50 -0.76 62
IV.MTSN.HHZ. 2018-11-20T16:50:29.08 0.3 undecidable manual P 114 0.5153 50 -0.24 69
IV.MCEL.HHZ. 2018-11-20T16:50:29.17 0.3 undecidable manual P 107 0.5297 50 -0.4 67
IV.BULG.HHZ. 2018-11-20T16:50:28.25 0.3 undecidable manual P 155 0.4416 50 0.18 71
IV.SNAL.HHZ. 2018-11-20T16:50:28.13 3.0 undecidable manual P 0
IV.MGR.HHZ. 2018-11-20T16:50:27.87 0.3 undecidable manual P 137 0.4676 50 -0.63 63
IV.CMPR.HHZ. 2018-11-20T16:50:27.19 0.3 undecidable manual S 142 0.2059 111 -0.07 77
IV.SLCN.HHZ. 2018-11-20T16:50:26.79 0.3 undecidable manual P 103 0.3885 50 -0.36 69
IV.MCRV.HHZ. 2018-11-20T16:50:25.40 0.3 undecidable manual P 5 0.3031 50 -0.29 72
IV.CMPR.HHZ. 2018-11-20T16:50:24.02 0.1 negative manual P 142 0.2059 111 0.34 96
IV.CDRU.HHZ. 2018-11-20T16:50:24.20 0.3 undecidable manual S 86 0.1286 121 -0.36 73
IV.CDRU.HHZ. 2018-11-20T16:50:22.35 0.1 negative manual P 86 0.1286 121 0.24 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CDRU.HHN. ML:3.4 0.0251839 0.2432 AML other m 2018-11-20T16:50:25.98
IV.CDRU.HHE. ML:3.5 0.03643841 0.1152 AML other m 2018-11-20T16:50:25.61
IV.CMPR.HHE. ML:3.3 0.012360955 0.1792 AML other m 2018-11-20T16:50:28.28
IV.CMPR.HHN. ML:3 0.007858947 0.2432 AML other m 2018-11-20T16:50:28.19
IV.SLCN.HNN. ML:3.5 0.0108653 0.6144 AML other m 2018-11-20T16:50:37.22
IV.SLCN.HHE. ML:3.6 0.0118742 0.5376 AML other m 2018-11-20T16:50:34.81
IV.SLCN.HNE. ML:3.5 0.0111697785 0.5248 AML other m 2018-11-20T16:50:34.81
IV.SLCN.HHN. ML:3.6 0.011694025 0.64 AML other m 2018-11-20T16:50:37.23
IV.MGR.HHE. ML:3.1 0.0031160765 0.3456 AML other m 2018-11-20T16:50:40.41
IV.MGR.HHN. ML:3.2 0.003731277 0.256 AML other m 2018-11-20T16:50:36.02
IV.MGR.HNE. ML:3.1 0.003162156 0.3712 AML other m 2018-11-20T16:50:40.42
IV.MGR.HNN. ML:3.1 0.003326684 0.2304 AML other m 2018-11-20T16:50:36.03
IV.BULG.HHE. ML:3 0.0028215525 0.6528 AML other m 2018-11-20T16:50:41.16
IV.BULG.HNE. ML:3 0.0027697485 0.6784 AML other m 2018-11-20T16:50:41.18
IV.BULG.HHN. ML:3.1 0.0032304965 0.2816 AML other m 2018-11-20T16:50:41.57
IV.MTSN.HHE. ML:3.1 0.002641838 0.6912 AML other m 2018-11-20T16:50:41.86
IV.MTSN.HHN. ML:3.2 0.0033239695 0.5248 AML other m 2018-11-20T16:50:42.60
IV.MCEL.HNN. ML:3.1 0.002731232 0.4608 AML other m 2018-11-20T16:50:42.09
IV.MCEL.HHN. ML:3.1 0.002816962 0.4608 AML other m 2018-11-20T16:50:42.09
IV.MCEL.HNE. ML:3.1 0.002769451 0.4224 AML other m 2018-11-20T16:50:42.37
IV.MCEL.HHE. ML:3.1 0.002810505 0.4224 AML other m 2018-11-20T16:50:42.37
IV.ACER.HNE. ML:3.1 0.001747522 0.4992 AML other m 2018-11-20T16:50:46.60
IV.ACER.HNN. ML:3.3 0.0030099415 0.6784 AML other m 2018-11-20T16:50:46.00
IV.ACER.HHN. ML:3.3 0.003104227 0.6144 AML other m 2018-11-20T16:50:46.00
IV.ACER.HHE. ML:3.1 0.0018382895 0.4992 AML other m 2018-11-20T16:50:46.60
IV.MRB1.HHE. ML:3 0.001530307 0.5632 AML other m 2018-11-20T16:50:51.04
IV.MRB1.HNN. ML:3.1 0.0020010785 0.448 AML other m 2018-11-20T16:50:53.98
IV.MRB1.HHN. ML:3.1 0.0021077395 0.4608 AML other m 2018-11-20T16:50:53.98
IV.MRB1.HNE. ML:3 0.0015632575 0.7936 AML other m 2018-11-20T16:50:46.81
IV.PAOL.HHE. ML:2.8 0.0009114323 0.4736 AML other m 2018-11-20T16:50:57.38
IV.PAOL.HHN. ML:2.9 0.0011748407 0.4992 AML other m 2018-11-20T16:50:54.36
IV.PAOL.HNN. ML:2.9 0.0012226796 0.5248 AML other m 2018-11-20T16:50:54.37
IV.PAOL.HNE. ML:2.8 0.00087730225 0.4736 AML other m 2018-11-20T16:50:57.38
IV.PALZ.HHE. ML:3 0.00116617285 0.6656 AML other m 2018-11-20T16:50:48.19
IV.PALZ.HHN. ML:3.1 0.0016217825 0.8192 AML other m 2018-11-20T16:50:48.14
IV.VITU.HHE. ML:3 0.001292993 0.4352 AML other m 2018-11-20T16:51:00.95
IV.VITU.HNE. ML:2.5 0.000361015 0.5248 AML other m 2018-11-20T16:51:01.73
IV.VITU.HHN. ML:3 0.00106020365 0.64 AML other m 2018-11-20T16:50:58.37
IV.VITU.HNN. ML:3 0.0010677601 0.5632 AML other m 2018-11-20T16:51:03.19
IV.SGTA.HNN. ML:2.7 0.0007157784 0.6912 AML other m 2018-11-20T16:50:55.67
IV.SGTA.HHE. ML:2.7 0.00080551705 0.6016 AML other m 2018-11-20T16:50:52.91
IV.SGTA.HNE. ML:2.7 0.00075982205 0.5632 AML other m 2018-11-20T16:50:52.90
IV.SGTA.HHN. ML:2.7 0.00077105395 0.6912 AML other m 2018-11-20T16:50:55.67
IV.MRVN.HHN. ML:2.7 0.0004014783 0.32 AML other m 2018-11-20T16:50:55.39
IV.MRVN.HHE. ML:2.8 0.00050879845 0.2944 AML other m 2018-11-20T16:50:57.13
IV.SALB.HHN. ML:2.6 0.00029102295 0.7808 AML other m 2018-11-20T16:51:08.71
IV.SALB.HHE. ML:2.7 0.00034453385 0.4224 AML other m 2018-11-20T16:51:11.93
GE.MATE.HHE. ML:2.8 0.00037844255 0.384 AML other m 2018-11-20T16:51:03.78
GE.MATE.HHN. ML:2.9 0.0004887038 0.512 AML other m 2018-11-20T16:51:05.88
IV.LTRZ.HNE. ML:2.7 0.0002873167 0.384 AML other m 2018-11-20T16:51:05.96
IV.LTRZ.HNN. ML:2.9 0.00041692175 0.6656 AML other m 2018-11-20T16:51:05.50
IV.LTRZ.EHE. ML:2.8 0.0003293989 0.3968 AML other m 2018-11-20T16:51:05.97
IV.MELA.HHN. ML:3 0.00056199345 0.6784 AML other m 2018-11-20T16:51:06.95
IV.MSAG.HHN. ML:2.9 0.0004140004 0.4608 AML other m 2018-11-20T16:51:11.96
IV.MSAG.HNN. ML:3.3 0.00099960795 0.4352 AML other m 2018-11-20T16:51:12.19
IV.MSAG.HHE. ML:2.6 0.00019776245 0.4992 AML other m 2018-11-20T16:51:08.03
IV.MSAG.HNE. ML:3 0.00048702675 0.5248 AML other m 2018-11-20T16:51:08.03
IV.CAR1.HNE. ML:3 0.0004187415 0.5248 AML other m 2018-11-20T16:51:16.57
IV.CAR1.HNN. ML:2.9 0.0003447102 0.6144 AML other m 2018-11-20T16:51:12.43
IV.CAR1.HHE. ML:2.9 0.0003242286 0.3584 AML other m 2018-11-20T16:51:12.58
IV.CAR1.HHN. ML:2.9 0.00036801425 0.8192 AML other m 2018-11-20T16:51:11.40
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://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