Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 13-10-2020 and time 02:20:01 (UTC) in region 4 km S San Marco la Catola (FG)

A magnitude ML 1.7 earthquake occured in region: 4 km S San Marco la Catola (FG), on

  • 13-10-2020 02:20:01 (UTC)
  • 13-10-2020 04:20:01 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.4940, 15.0040 at 23 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
San Marco la Catola FG 4 1012 1012
Volturara Appula FG 4 430 1442
Tufara CB 5 925 2367
Castelvetere in Val Fortore BN 8 1240 3607
Gambatesa CB 8 1464 5071
Celenza Valfortore FG 8 1598 6669
San Bartolomeo in Galdo BN 9 4867 11536
Motta Montecorvino FG 9 730 12266
Volturino FG 10 1743 14009
Baselice BN 11 2397 16406
Carlantino FG 11 980 17386
Pietramontecorvino FG 12 2721 20107
Alberona FG 12 985 21092
Macchia Valfortore CB 14 576 21668
Castelnuovo della Daunia FG 14 1445 23113
Riccia CB 14 5262 28375
Casalvecchio di Puglia FG 15 1877 30252
Pietracatella CB 15 1375 31627
Roseto Valfortore FG 16 1074 32701
Foiano di Val Fortore BN 16 1410 34111
Casalnuovo Monterotaro FG 16 1556 35667
Jelsi CB 18 1781 37448
Sant'Elia a Pianisi CB 18 1818 39266
Montefalcone di Val Fortore BN 19 1525 40791
Colletorto CB 19 1938 42729
Biccari FG 19 2800 45529
Castelpagano BN 19 1483 47012

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km SW of San Severo (53905 inhabitants)
45 Km NE of Benevento (60091 inhabitants)
45 Km W of Foggia (151991 inhabitants)
67 Km N of Avellino (54857 inhabitants)
73 Km NE of Caserta (76326 inhabitants)
78 Km W of Manfredonia (57279 inhabitants)
79 Km W of Cerignola (58396 inhabitants)
81 Km NE of Acerra (59573 inhabitants)
86 Km NE of Afragola (65057 inhabitants)
88 Km NE of Aversa (53047 inhabitants)
89 Km NE of Casoria (77642 inhabitants)
92 Km N of Cava de' Tirreni (53659 inhabitants)
92 Km NE of Giugliano in Campania (122974 inhabitants)
92 Km NE of Scafati (50787 inhabitants)
92 Km NE of Portici (55274 inhabitants)
93 Km N of Salerno (135261 inhabitants)
94 Km NE of Ercolano (53709 inhabitants)
95 Km NE of Marano di Napoli (59874 inhabitants)
95 Km NE of Torre del Greco (86275 inhabitants)
96 Km NE of Napoli (974074 inhabitants)
99 Km N of Battipaglia (50786 inhabitants)
99 Km NE of Castellammare di Stabia (66466 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 1.7 2020-10-13
02:20:01		 41.4942 15.0043 23 2021-02-26
14:55:59		 Bollettino Sismico Italiano INGV 83799701
Reviewed
Rev100 		ML 1.9 2020-10-13
02:20:01		 41.5142 14.9898 27 2020-10-13
02:26:16		 Sala Sismica INGV-Roma 83746251
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-13 02:20:01 ± 0.07
Latitude 41.4942 ± 0.0027
Longitude 15.0043 ± 0.0036
Depth (km) 23 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 83799701

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 287
Semi-minor axis of confidence ellipse (meter) 86
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 107
Circular confidence region, given by single value of horizontal uncertainty (meter) 290.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 34
Number of associated phases, regardless of their use for origin computation 38
Number of defining phases 38
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.07285
Epicentral distance of station farthest from the epicenter (degree) 0.71046
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 23
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 83799701
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-10-15 08:30:01

ML:1.9

Field Value
Value 1.9
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 83746251
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-13 02:26:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAFE.HHZ. 2020-10-13T02:20:19.11 0.3 undecidable manual S 159 55.2003 105 -0.17 69
IV.APRC.HHN. 2020-10-13T02:20:18.38 0.3 undecidable manual S 57 53.4021 106 -0.42 66
IV.SGG.HHN. 2020-10-13T02:20:18.67 0.6 undecidable manual S 257 53.3022 106 -0.12 47
IV.SGTA.HNZ. 2020-10-13T02:20:18.32 0.6 undecidable manual S 143 49.9167 107 0.41 44
IT.GLNS.HNZ. 2020-10-13T02:20:17.34 0.6 undecidable manual S 351 46.9197 108 0.19 46
IT.MCLF.HNE. 2020-10-13T02:20:17.64 0.3 undecidable manual S 343 47.2194 108 0.4 66
IT.PLTA.HNN. 2020-10-13T02:20:17.09 0.6 undecidable manual S 338 47.0196 108 -0.09 48
IV.MSAG.HHZ. 2020-10-13T02:20:15.51 1.0 undecidable manual P 72 78.8655 100 0.12 22
IV.MRB1.HHZ. 2020-10-13T02:20:15.68 0.6 undecidable manual S 184 41.3253 111 -0.07 48
IV.CAPA.HNE. 2020-10-13T02:20:14.66 0.6 undecidable manual P 119 77.2671 100 -0.49 41
IV.PSB1.HHZ. 2020-10-13T02:20:14.10 0.3 undecidable manual S 208 34.1436 116 0.12 73
IV.BSSO.HHZ. 2020-10-13T02:20:13.99 0.3 undecidable manual S 280 34.5432 116 -0.11 73
IV.SACR.HHZ. 2020-10-13T02:20:12.42 0.3 undecidable manual S 247 27.0507 123 0.07 74
OT.OT03.EHE. 2020-10-13T02:20:12.48 0.1 undecidable manual P 65 58.6968 104 0.13 92
OT.OT11.EHZ. 2020-10-13T02:20:12.78 0.3 undecidable manual S 85 27.5502 123 0.31 71
IV.CAFE.HHZ. 2020-10-13T02:20:11.82 0.6 undecidable manual P 159 55.2003 105 -0.01 47
OT.OT05.EHE. 2020-10-13T02:20:11.85 0.6 undecidable manual P 70 52.9026 106 0.36 44
IV.TRIV.HHN. 2020-10-13T02:20:11.00 0.6 undecidable manual P 309 48.3183 108 0.2 46
IV.APRC.HHN. 2020-10-13T02:20:11.18 0.6 undecidable manual P 57 53.4021 106 -0.37 44
IV.SGG.HHN. 2020-10-13T02:20:11.39 0.6 undecidable manual P 257 53.3022 106 -0.16 46
IV.MELA.HHZ. 2020-10-13T02:20:11.96 0.3 undecidable manual S 23 25.5522 125 -0.06 75
OT.OT06.EHZ. 2020-10-13T02:20:11.34 1.0 undecidable manual P 66 53.3022 106 -0.21 23
IV.SGTA.HNZ. 2020-10-13T02:20:11.23 0.6 undecidable manual P 143 49.9167 107 0.19 46
IT.MCLF.HNE. 2020-10-13T02:20:10.83 0.6 undecidable manual P 343 47.2194 108 0.18 46
IV.MRB1.HHZ. 2020-10-13T02:20:10.11 0.6 undecidable manual P 184 41.3253 111 0.32 46
IT.PLTA.HNN. 2020-10-13T02:20:10.71 0.6 undecidable manual P 338 47.0196 108 0.09 47
IV.VITU.HHZ. 2020-10-13T02:20:10.43 0.6 undecidable manual P 222 46.5201 109 -0.11 47
IX.SSB3.HNE.02 2020-10-13T02:20:10.92 0.6 undecidable manual P 158 49.8168 107 -0.1 47
IV.CIGN.HHZ. 2020-10-13T02:20:10.65 0.6 undecidable manual S 335 19.5693 134 -0.13 50
IT.GLNS.HNZ. 2020-10-13T02:20:10.28 0.1 undecidable manual P 351 46.9197 108 -0.32 91
IV.BSSO.HHZ. 2020-10-13T02:20:08.77 0.3 undecidable manual P 280 34.5432 116 -0.07 73
IV.GATE.HHZ. 2020-10-13T02:20:08.91 0.6 undecidable manual S 285 8.0808 158 -0.13 51
IV.PSB1.HHZ. 2020-10-13T02:20:08.79 0.3 undecidable manual P 208 34.1436 116 0.02 74
IV.MELA.HHZ. 2020-10-13T02:20:07.55 0.3 undecidable manual P 23 25.5522 125 -0.09 74
IV.SACR.HHZ. 2020-10-13T02:20:07.72 0.3 undecidable manual P 247 27.0507 123 -0.11 74
OT.OT11.EHZ. 2020-10-13T02:20:07.89 0.3 undecidable manual P 85 27.5502 123 -0.01 75
IV.CIGN.HHZ. 2020-10-13T02:20:07.01 0.3 undecidable manual P 335 19.5693 134 0.09 75
IV.GATE.HHZ. 2020-10-13T02:20:06.08 0.1 positive manual P 285 8.0808 158 0.16 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MELA.HHN. ML:2.0 0.0004665 0.42 AML other m 2020-10-13T02:20:18.58
IV.GATE.HNN. ML:1.5 0.00040300000000000004 1.66 AML other m 2020-10-13T02:20:12.12
IV.MELA.HHE. ML:1.8 0.000492 1.58 AML other m 2020-10-13T02:20:16.93
IV.GATE.HNE. ML:1.4 0.00016776374999999998 1.0592 AML other m 2020-10-13T02:20:08.75
IV.SACR.HHN. ML:1.5 0.000126033 0.28 AML other m 2020-10-13T02:20:12.81
IV.SACR.HHE. ML:1.7 0.00020144 2.5216 AML other m 2020-10-13T02:20:12.81
OT.OT11.EHE. ML:1.9 0.00032095945000000005 1.8992 AML other m 2020-10-13T02:20:12.94
OT.OT11.EHN. ML:2.0 0.00037299064999999997 0.44 AML other m 2020-10-13T02:20:12.92
IV.BSSO.HNN. ML:1.6 0.00013955745 0.84 AML other m 2020-10-13T02:20:14.99
IV.BSSO.HHN. ML:1.6 0.000130077 1.28 AML other m 2020-10-13T02:20:14.99
IV.PSB1.HHN. ML:1.1 0.00004652007 1.5008 AML other m 2020-10-13T02:20:13.60
IV.PSB1.HHE. ML:1.5 0.0001223215 2.1392 AML other m 2020-10-13T02:20:13.71
IV.CAFE.HHN. ML:1.7 0.00009790198 2.8992 AML other m 2020-10-13T02:20:20.57
IV.CAFE.HHE. ML:1.9 0.0001777307 2.92 AML other m 2020-10-13T02:20:20.52
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download