Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 20-11-2020 and time 10:22:14 (UTC) in region 2 km N San Marco la Catola (FG)

A magnitude ML 1.6 earthquake occured in region: 2 km N San Marco la Catola (FG), on

  • 20-11-2020 10:22:14 (UTC)
  • 20-11-2020 11:22:14 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.5430, 15.0080 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 2 1012 1012
Celenza Valfortore FG 3 1598 2610
Carlantino FG 6 980 3590
Volturara Appula FG 6 430 4020
Tufara CB 9 925 4945
Gambatesa CB 9 1464 6409
Motta Montecorvino FG 10 730 7139
Macchia Valfortore CB 10 576 7715
Pietramontecorvino FG 10 2721 10436
Castelnuovo della Daunia FG 10 1445 11881
Casalvecchio di Puglia FG 11 1877 13758
Casalnuovo Monterotaro FG 12 1556 15314
Pietracatella CB 12 1375 16689
Volturino FG 12 1743 18432
Castelvetere in Val Fortore BN 12 1240 19672
Colletorto CB 14 1938 21610
Sant'Elia a Pianisi CB 14 1818 23428
San Bartolomeo in Galdo BN 15 4867 28295
Riccia CB 16 5262 33557
Alberona FG 16 985 34542
San Giuliano di Puglia CB 16 1042 35584
Baselice BN 16 2397 37981
Jelsi CB 18 1781 39762
Monacilioni CB 18 523 40285
Bonefro CB 19 1384 41669
Santa Croce di Magliano CB 19 4435 46104

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km W of San Severo (53905 inhabitants)
46 Km W of Foggia (151991 inhabitants)
50 Km NE of Benevento (60091 inhabitants)
72 Km N of Avellino (54857 inhabitants)
76 Km W of Manfredonia (57279 inhabitants)
77 Km NE of Caserta (76326 inhabitants)
81 Km W of Cerignola (58396 inhabitants)
85 Km NE of Acerra (59573 inhabitants)
90 Km NE of Afragola (65057 inhabitants)
92 Km NE of Aversa (53047 inhabitants)
93 Km NE of Casoria (77642 inhabitants)
96 Km NE of Giugliano in Campania (122974 inhabitants)
97 Km NE of Portici (55274 inhabitants)
97 Km N of Cava de' Tirreni (53659 inhabitants)
97 Km NE of Scafati (50787 inhabitants)
98 Km N of Salerno (135261 inhabitants)
99 Km NE of Ercolano (53709 inhabitants)
99 Km NE of Marano di Napoli (59874 inhabitants)
100 Km NE of Torre del Greco (86275 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 1.6 2020-11-20
10:22:14		 41.5433 15.0083 25 2021-02-26
14:56:13		 Bollettino Sismico Italiano INGV 85969631
Reviewed
Rev100 		ML 1.9 2020-11-20
10:22:15		 41.5243 14.9997 15 2020-11-20
10:39:33		 Sala Sismica INGV-Roma 84868981
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-20 10:22:14 ± 0.15
Latitude 41.5433 ± 0.0072
Longitude 15.0083 ± 0.0072
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 85969631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 675
Semi-minor axis of confidence ellipse (meter) 589
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 326
Circular confidence region, given by single value of horizontal uncertainty (meter) 680.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 64
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.07914
Epicentral distance of station farthest from the epicenter (degree) 0.58816
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 85969631
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-08 12:13:23

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 84868981
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-20 10:39:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
OT.OT05.EHZ. 2020-11-20T10:22:30.97 0.6 undecidable manual S 75 50.9157 109 -0.53 42
IV.PSB1.HHZ. 2020-11-20T10:22:28.62 0.6 undecidable manual S 205 39.1275 116 0.04 48
IV.SGRT.HHZ. 2020-11-20T10:22:27.38 0.6 undecidable manual P 69 65.2902 105 0.81 37
IV.BSSO.HHZ. 2020-11-20T10:22:27.63 0.6 undecidable manual S 271 34.4433 120 0.15 47
OT.OT11.EHE. 2020-11-20T10:22:26.23 0.6 undecidable manual S 97 27.3504 127 0.34 46
IV.SACR.HHZ. 2020-11-20T10:22:25.94 0.6 undecidable manual S 237 29.9478 124 -0.51 44
IV.SGTA.HNZ. 2020-11-20T10:22:25.05 0.6 undecidable manual P 147 54.2013 108 0.13 46
IV.MELA.HHZ. 2020-11-20T10:22:24.76 0.3 undecidable manual S 29 20.5683 136 0.24 72
IV.APRC.HHZ. 2020-11-20T10:22:24.21 0.3 undecidable manual P 62 50.3163 110 -0.14 69
IV.VITU.HHZ. 2020-11-20T10:22:24.33 0.3 undecidable manual P 218 50.9157 109 -0.11 70
OT.OT05.EHZ. 2020-11-20T10:22:24.08 0.3 undecidable manual P 75 50.9157 109 -0.37 66
IV.CIGN.HHE. 2020-11-20T10:22:23.19 0.3 undecidable manual S 325 14.9739 145 -0.39 69
IV.PSB1.HHZ. 2020-11-20T10:22:22.67 0.1 undecidable manual P 205 39.1275 116 -0.09 95
IV.GATE.HNN. 2020-11-20T10:22:22.91 0.6 undecidable manual S 248 8.7801 158 0.12 50
IV.BSSO.HHZ. 2020-11-20T10:22:22.39 0.3 undecidable manual P 271 34.4433 120 0.27 69
IV.SACR.HHZ. 2020-11-20T10:22:21.42 0.1 undecidable manual P 237 29.9478 124 -0.11 96
IV.MELA.HHZ. 2020-11-20T10:22:20.53 0.1 positive manual P 29 20.5683 136 0.12 98
OT.OT11.EHE. 2020-11-20T10:22:20.99 0.6 undecidable manual P 97 27.3504 127 -0.22 47
IV.CIGN.HHE. 2020-11-20T10:22:19.92 0.1 undecidable manual P 325 14.9739 145 0.05 100
IV.GATE.HNN. 2020-11-20T10:22:19.60 0.1 undecidable manual P 248 8.7801 158 0.18 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MELA.HNN. ML:1.9 0.000394567045 0.1984 AML other m 2020-11-20T10:22:24.86
IV.MELA.HHN. ML:2.0 0.00042189512 0.1856 AML other m 2020-11-20T10:22:24.86
IV.MELA.HNE. ML:1.7 0.00024754005 0.0896 AML other m 2020-11-20T10:22:25.37
IV.MELA.HHE. ML:1.7 0.000256394865 0.0768 AML other m 2020-11-20T10:22:25.38
IV.VITU.HNN. ML:1.8 0.00014233075 0.6784 AML other m 2020-11-20T10:22:25.91
IV.SACR.HNN. ML:1.1 0.000051508759999999994 0.2176 AML other m 2020-11-20T10:22:26.50
IV.SACR.HHE. ML:1.6 0.00013043860000000002 0.32 AML other m 2020-11-20T10:22:26.53
IV.SACR.HHN. ML:1.3 0.00007541920499999998 0.1792 AML other m 2020-11-20T10:22:27.48
IV.BSSO.HHE. ML:1.3 0.000072384375 0.3584 AML other m 2020-11-20T10:22:28.27
IV.PSB1.HHN. ML:1.4 0.00007227369 0.2816 AML other m 2020-11-20T10:22:28.87
IV.BSSO.HNN. ML:1.3 0.00007103654999999999 0.2752 AML other m 2020-11-20T10:22:29.40
IV.BSSO.HHN. ML:1.4 0.000075482515 0.256 AML other m 2020-11-20T10:22:29.39
IV.PSB1.HHE. ML:1.3 0.000057530962 0.2048 AML other m 2020-11-20T10:22:29.40
IV.PSB1.HNN. ML:1.3 0.000063013185 0.2496 AML other m 2020-11-20T10:22:29.58
IV.PSB1.HNE. ML:1.2 0.000048907159999999995 0.2624 AML other m 2020-11-20T10:22:29.72
IV.APRC.HNE. ML:1.6 0.000089595435 0.1984 AML other m 2020-11-20T10:22:33.02
IV.APRC.HHN. ML:1.8 0.00015095009999999996 0.3584 AML other m 2020-11-20T10:22:34.34
IV.APRC.HHE. ML:1.7 0.0001217563 0.2368 AML other m 2020-11-20T10:22:34.73
IV.VITU.HHE. ML:1.6 0.0000871902 0.2368 AML other m 2020-11-20T10:22:35.68
IV.SGRT.HHN. ML:2.1 0.000195 0.12 AML other m 2020-11-20T10:22:39.08
IV.SGRT.HHE. ML:2.1 0.00020511185 0.1408 AML other m 2020-11-20T10:22:39.33
IV.VITU.HHN. ML:1.6 0.00009370558 0.4416 AML other m 2020-11-20T10:22:42.25
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