Earthquake with magnitude of ML 2.4 on date 28-10-2020 and time 04:10:27 (UTC) in region Volpeglino (AL)

A magnitude ML 2.4 earthquake occured in region: Volpeglino (AL), on

  • 28-10-2020 04:10:27 (UTC)
  • 28-10-2020 05:10:27 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.9, 8.96 at 11 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
Volpeglino AL 1 148 148
Castellar Guidobono AL 2 399 547
Volpedo AL 2 1227 1774
Monleale AL 2 566 2340
Casalnoceto AL 2 980 3320
Berzano di Tortona AL 2 157 3477
Viguzzolo AL 3 3148 6625
Sarezzano AL 5 1171 7796
Rivanazzano Terme PV 6 5312 13108
Pozzol Groppo AL 6 328 13436
Montemarzino AL 6 341 13777
Cerreto Grue AL 7 323 14100
Montegioco AL 7 313 14413
Pontecurone AL 7 3723 18136
Godiasco Salice Terme PV 8 3229 21365
Villaromagnano AL 8 715 22080
Tortona AL 8 27437 49517
Retorbido PV 8 1538 51055
Casasco AL 8 129 51184
Momperone AL 9 223 51407
Carbonara Scrivia AL 9 1122 52529
Costa Vescovato AL 9 335 52864
Spineto Scrivia AL 10 337 53201
Paderna AL 10 220 53421
Avolasca AL 11 294 53715
Codevilla PV 11 997 54712
Rocca Susella PV 11 225 54937
Cecima PV 11 236 55173
Carezzano AL 11 431 55604
Castelnuovo Scrivia AL 11 5274 60878
Castellania AL 11 90 60968
Voghera PV 11 39421 100389
Brignano-Frascata AL 11 456 100845
Ponte Nizza PV 12 807 101652
Villalvernia AL 12 955 102607
Casei Gerola PV 12 2500 105107
Sant'Agata Fossili AL 13 425 105532
Montesegale PV 13 298 105830
Torrazza Coste PV 13 1680 107510
Garbagna AL 13 696 108206
Gavazzana AL 15 180 108386
Alzano Scrivia AL 15 377 108763
San Sebastiano Curone AL 15 583 109346
Molino dei Torti AL 15 605 109951
Bagnaria PV 15 658 110609
Sale AL 15 4172 114781
Silvano Pietra PV 16 672 115453
Guazzora AL 16 305 115758
Montebello della Battaglia PV 16 1628 117386
Gremiasco AL 16 324 117710
Dernice AL 16 185 117895
Val di Nizza PV 16 624 118519
Sardigliano AL 16 406 118925
Cassano Spinola AL 17 1731 120656
Borgo Priolo PV 17 1474 122130
Pizzale PV 17 735 122865
Cornale e Bastida PV 17 867 123732
Isola Sant'Antonio AL 17 717 124449
Fortunago PV 18 390 124839
Casteggio PV 18 6805 131644
Pozzolo Formigaro AL 18 4775 136419
Alluvioni Cambiò AL 18 912 137331
Corana PV 19 812 138143
Montacuto AL 19 278 138421
Borghetto di Borbera AL 19 1966 140387
Borgoratto Mormorolo PV 19 432 140819
Cervesina PV 19 1204 142023
Lungavilla PV 19 2429 144452
Calvignano PV 19 122 144574
Piovera AL 19 851 145425
Verretto PV 20 395 145820

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km E of Alessandria (93943 inhabitants)
36 Km SW of Pavia (72576 inhabitants)
47 Km S of Vigevano (63310 inhabitants)
54 Km N of Genova (586655 inhabitants)
60 Km E of Asti (76202 inhabitants)
60 Km W of Piacenza (102191 inhabitants)
66 Km S of Milano (1345851 inhabitants)
67 Km SE of Novara (104380 inhabitants)
71 Km S of Rho (50434 inhabitants)
74 Km SW of Sesto San Giovanni (81608 inhabitants)
76 Km NE of Savona (61345 inhabitants)
76 Km S of Cinisello Balsamo (75078 inhabitants)
78 Km S of Legnano (60262 inhabitants)
80 Km SW of Monza (122671 inhabitants)
80 Km S of Busto Arsizio (83106 inhabitants)
86 Km S of Gallarate (53343 inhabitants)
88 Km W of Cremona (71901 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 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 last 90 days

Earthquakes of the last 90 days

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 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
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
Reviewed
Rev100
ML 2.4 2020-10-28
04:10:27
44.9 8.96 11 2020-10-28
04:27:32
Sala Sismica INGV-Roma 84197241
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-28 04:10:27 ± 0.13
Latitude 44.90 ± 0.00
Longitude 8.96 ± 0.00
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 84197241

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 490
Semi-minor axis of confidence ellipse (meter) 261
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 208
Circular confidence region, given by single value of horizontal uncertainty (meter) 490
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 59
Number of defining phases 47
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.53
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 1.5945
Number of stations at which the event was observed 35
Number of stations from which data was used for origin computation 28
Magnitude information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 46
Type of magnitude ML
Reference to an origin 84197241
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-28 04:27:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.FIR.HHZ. 2020-10-28T04:11:28.00 3.0 undecidable manual Sn 0.69 0
IV.MF5.EHZ. 2020-10-28T04:11:27.19 3.0 negative manual Pn 1.65 0
IV.CSP1.EHZ. 2020-10-28T04:11:24.63 3.0 positive manual Pn 2.02 0
CH.FUSIO.HHZ. 2020-10-28T04:11:17.03 0.6 undecidable manual S 352 1.5702 90 0.31 35
GU.POPM.HHZ. 2020-10-28T04:11:16.05 0.3 undecidable manual S 123 1.5378 90 0.27 53
GU.LSD.HHZ. 2020-10-28T04:11:10.01 0.6 undecidable manual S 294 1.4047 90 -1.81 19
GU.ENR.HHZ. 2020-10-28T04:11:10.11 0.6 undecidable manual S 239 1.2869 90 1.78 19
CH.MMK.HHZ. 2020-10-28T04:11:08.96 0.6 undecidable manual S 329 1.3472 90 -1.17 28
IV.ZONE.HHZ. 2020-10-28T04:11:07.19 0.6 undecidable manual S 43 1.1862 90 1.84 20
IV.IMI.HHZ. 2020-10-28T04:11:07.35 0.6 undecidable manual S 218 1.2474 90 0.18 41
GU.CIRO.HHZ. 2020-10-28T04:11:07.09 0.3 undecidable manual S 306 1.2069 90 1.12 44
GU.BHB.HHZ. 2020-10-28T04:11:06.09 0.6 undecidable manual S 268 1.2051 90 0.17 41
GU.SATI.HHZ. 2020-10-28T04:11:06.01 0.6 undecidable manual S 322 1.242 90 -1 31
GU.RSP.HHZ. 2020-10-28T04:11:05.80 0.6 undecidable manual S 282 1.224 90 -0.68 36
GU.GBOS.HHZ. 2020-10-28T04:11:03.72 3.0 undecidable manual S 231 1.0342 90 2.88 0
GU.TRAV.HHZ. 2020-10-28T04:11:02.93 0.6 undecidable manual S 306 1.0531 90 1.52 24
GU.RORO.HHZ. 2020-10-28T04:11:02.34 3.0 undecidable manual S 219 1.0126 90 2.14 0
IV.MDI.HHZ. 2020-10-28T04:11:01.01 0.3 undecidable manual S 31 1.0198 90 0.6 59
IV.PLMA.HHZ. 2020-10-28T04:11:00.94 0.3 undecidable manual S 143 1.0594 90 -0.66 56
CH.MUGIO.HHZ. 2020-10-28T04:11:00.50 0.1 undecidable manual S 3 1.0243 90 -0.07 87
IV.VARE.HHZ. 2020-10-28T04:11:00.43 0.6 undecidable manual S 352 0.9785 90 1.23 30
IV.MONC.HHZ. 2020-10-28T04:10:59.21 3.0 undecidable manual S 284 0.7527 90 6.71 0
ST.DOSS.HHZ. 2020-10-28T04:10:59.32 3.0 negative manual Pn 0.05 0
MN.TUE.HHZ. 2020-10-28T04:10:57.22 3.0 positive manual P 1.54 0
ST.RONC.EHZ. 2020-10-28T04:10:56.45 1.0 positive manual P 47 1.5891 54 0.15 18
GU.POPM.HHZ. 2020-10-28T04:10:56.30 0.3 positive manual P 123 1.5378 90 0.82 45
IV.MRGE.HHZ. 2020-10-28T04:10:55.07 3.0 undecidable manual P 1.5945 -1.31 0
CH.FUSIO.HHZ. 2020-10-28T04:10:55.65 0.3 positive manual P 352 1.5702 90 -0.37 51
GU.REMY.HHZ. 2020-10-28T04:10:54.54 3.0 undecidable manual P 1.5774 -1.61 0
GU.ENR.HHZ. 2020-10-28T04:10:52.23 0.6 negative manual P 239 1.2869 90 1.05 30
GU.LSD.HHZ. 2020-10-28T04:10:52.57 0.6 negative manual P 294 1.4047 90 -0.63 35
CH.MMK.HHZ. 2020-10-28T04:10:51.78 0.6 negative manual P 329 1.3472 90 -0.44 38
GU.SATI.HHZ. 2020-10-28T04:10:50.31 0.3 negative manual P 322 1.242 90 -0.11 62
IV.ZONE.HHZ. 2020-10-28T04:10:50.38 0.6 negative manual P 43 1.1862 90 0.92 33
GU.RSP.HHZ. 2020-10-28T04:10:49.11 0.6 positive manual P 282 1.224 90 -1 31
IV.IMI.HHZ. 2020-10-28T04:10:49.73 0.1 undecidable manual P 218 1.2474 90 -0.78 69
GU.BHB.HHZ. 2020-10-28T04:10:49.44 1.0 negative manual P 268 1.2051 90 -0.34 20
GU.GRAM.HHZ. 2020-10-28T04:10:48.46 3.0 undecidable manual S 117 0.8831 90 -7.92 0
GU.GBOS.HHZ. 2020-10-28T04:10:48.10 1.0 undecidable manual P 231 1.0342 90 1.25 14
GU.CIRO.HHZ. 2020-10-28T04:10:47.91 0.6 positive manual P 306 1.2069 90 -1.9 18
GU.TRAV.HHZ. 2020-10-28T04:10:47.38 0.1 undecidable manual P 306 1.0531 90 0.19 85
GU.RORO.HHZ. 2020-10-28T04:10:47.22 0.6 negative manual P 219 1.0126 90 0.73 36
IV.MDI.HHZ. 2020-10-28T04:10:46.60 1.0 positive manual P 31 1.0198 90 -0.01 22
IV.PLMA.HHZ. 2020-10-28T04:10:46.27 1.0 positive manual P 143 1.0594 90 -1.03 16
CH.MUGIO.HHZ. 2020-10-28T04:10:46.77 0.3 positive manual P 3 1.0243 90 0.07 66
GU.ROTM.HHZ. 2020-10-28T04:10:45.85 3.0 undecidable manual S 264 0.4344 90 2.77 0
IV.VARE.HHZ. 2020-10-28T04:10:45.92 0.1 undecidable manual P 352 0.9785 90 0.01 90
GU.PCP.HHZ. 2020-10-28T04:10:43.74 0.6 undecidable manual S 220 0.4632 90 -0.2 49
IV.MONC.HHZ. 2020-10-28T04:10:43.96 0.1 undecidable manual P 284 0.7527 90 1.92 39
GU.GRAM.HHZ. 2020-10-28T04:10:43.23 0.1 undecidable manual P 117 0.8831 90 -1.05 65
GU.CANO.HHZ. 2020-10-28T04:10:43.62 0.1 undecidable manual P 217 0.8616 90 -0.29 88
GU.RNCA.HHZ. 2020-10-28T04:10:41.85 0.6 undecidable manual S 181 0.4263 90 -1 37
IV.QLNO.HHZ. 2020-10-28T04:10:41.64 0.6 negative manual P 218 0.7222 90 0.12 46
IV.PCN.EHZ. 2020-10-28T04:10:39.52 0.3 negative manual P 75 0.5567 90 0.83 59
GU.ROTM.HHZ. 2020-10-28T04:10:37.98 0.6 positive manual P 264 0.4344 90 1.38 30
GU.PCP.HHZ. 2020-10-28T04:10:36.29 1.0 positive manual P 220 0.4632 90 -0.81 20
GU.RNCA.HHZ. 2020-10-28T04:10:35.11 0.3 negative manual P 181 0.4263 90 -1.36 47
IV.SARZ.HNZ. 2020-10-28T04:10:32.62 0.6 undecidable manual S 228 0.0459 148 0.58 47
IV.SARZ.HNZ. 2020-10-28T04:10:29.78 0.1 positive manual P 228 0.0459 148 -0.45 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SARZ.HHN. ML:2.8 0.008935 0.38 AML other m 2020-10-28T04:10:33.59
IV.SARZ.HNN. ML:2.8 0.00865 0.38 AML other m 2020-10-28T04:10:33.59
IV.SARZ.HHE. ML:2.8 0.0109 0.28 AML other m 2020-10-28T04:10:33.36
IV.SARZ.HNE. ML:2.8 0.01055 0.28 AML other m 2020-10-28T04:10:33.36
GU.RNCA.HHN. ML:1.9 0.000214 0.4 AML other m 2020-10-28T04:10:42.61
GU.RNCA.HHE. ML:1.8 0.0001615 1.14 AML other m 2020-10-28T04:10:42.73
GU.PCP.HHN. ML:1.8 0.000148 0.52 AML other m 2020-10-28T04:10:46.39
GU.PCP.HHE. ML:1.6 9.81E-5 0.52 AML other m 2020-10-28T04:10:48.42
GU.ROTM.HHN. ML:2.5 0.000983 1.56 AML other m 2020-10-28T04:10:52.02
GU.ROTM.HHE. ML:2.4 0.000615 1.24 AML other m 2020-10-28T04:10:54.33
IV.QLNO.HHN. ML:1.9 0.00010535 1.04 AML other m 2020-10-28T04:10:57.37
IV.QLNO.HHE. ML:2 0.0001395 0.22 AML other m 2020-10-28T04:10:57.51
GU.GRAM.HHE. ML:2.3 0.000199 0.6 AML other m 2020-10-28T04:10:59.47
GU.GRAM.HHN. ML:2.4 0.00024 1.52 AML other m 2020-10-28T04:10:59.02
GU.CANO.HHE. ML:2.7 0.000547 1.68 AML other m 2020-10-28T04:11:00.05
GU.CANO.HHN. ML:2.8 0.000606 1.72 AML other m 2020-10-28T04:11:00.09
CH.MUGIO.HHE. ML:2.3 0.00016 0.58 AML other m 2020-10-28T04:11:01.67
IV.PLMA.HHE. ML:2.2 0.000129 0.98 AML other m 2020-10-28T04:11:02.17
IV.PLMA.HHN. ML:2.3 0.0001635 0.28 AML other m 2020-10-28T04:11:02.41
IV.VARE.HHE. ML:2.4 0.000193 0.3 AML other m 2020-10-28T04:11:02.50
IV.MDI.HHE. ML:2.4 0.000231 0.5 AML other m 2020-10-28T04:11:03.62
IV.MDI.HHN. ML:2.4 0.0001835 1.24 AML other m 2020-10-28T04:11:03.76
GU.TRAV.HHN. ML:2.6 0.000305 0.36 AML other m 2020-10-28T04:11:04.46
CH.MUGIO.HHN. ML:2.2 0.0001285 0.44 AML other m 2020-10-28T04:11:04.68
GU.GBOS.HHN. ML:2.1 0.000106 1.36 AML other m 2020-10-28T04:11:04.28
GU.TRAV.HHE. ML:2.6 0.0003035 1.42 AML other m 2020-10-28T04:11:05.04
GU.GBOS.HHE. ML:1.9 7.055E-5 0.58 AML other m 2020-10-28T04:11:05.07
IV.VARE.HHN. ML:2.4 0.000222 0.78 AML other m 2020-10-28T04:11:05.76
GU.BHB.HHN. ML:2 6.05E-5 0.56 AML other m 2020-10-28T04:11:07.83
GU.CIRO.HHE. ML:2.6 0.000258 0.36 AML other m 2020-10-28T04:11:08.06
GU.CIRO.HHN. ML:2.7 0.0003245 0.76 AML other m 2020-10-28T04:11:08.06
IV.IMI.HHE. ML:2.2 0.0001058 0.66 AML other m 2020-10-28T04:11:09.86
GU.BHB.HHE. ML:2.2 9.505E-5 0.56 AML other m 2020-10-28T04:11:10.37
IV.IMI.HHN. ML:2.2 0.000106 1.56 AML other m 2020-10-28T04:11:10.06
CH.MMK.HHE. ML:1.7 2.595E-5 1.38 AML other m 2020-10-28T04:11:11.82
GU.ENR.HHE. ML:2.2 8.08E-5 1.48 AML other m 2020-10-28T04:11:11.90
CH.MMK.HHN. ML:1.6 2.2075E-5 0.16 AML other m 2020-10-28T04:11:12.24
GU.ENR.HHN. ML:2.2 9.655E-5 1.32 AML other m 2020-10-28T04:11:14.23
CH.FUSIO.HHE. ML:2.5 0.00011785 0.4 AML other m 2020-10-28T04:11:19.47
GU.REMY.HHN. ML:2.5 0.0001255 0.64 AML other m 2020-10-28T04:11:19.22
ST.RONC.EHN. ML:2.7 0.0001895 1.06 AML other m 2020-10-28T04:11:20.39
GU.REMY.HHE. ML:2.3 7.505E-5 0.34 AML other m 2020-10-28T04:11:20.81
CH.FUSIO.HHN. ML:2.3 8.06E-5 1 AML other m 2020-10-28T04:11:21.75
GU.POPM.HHN. ML:2.5 0.000139 0.6 AML other m 2020-10-28T04:11:21.63
GU.POPM.HHE. ML:2.4 0.000108 0.5 AML other m 2020-10-28T04:11:21.44
ST.RONC.EHE. ML:2.6 0.0001335 1.02 AML other m 2020-10-28T04:11:21.97
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