Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 20-11-2020 and time 10:43:58 (Italy) in region 3 km E Alberona (FG)

A magnitude ML 1.3 earthquake occured in region: 3 km E Alberona (FG), on

  • 20-11-2020 09:43:58 (UTC)
  • 20-11-2020 10:43:58 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.4440, 15.1550 at 11 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
Alberona FG 3 985 985
Volturino FG 5 1743 2728
Biccari FG 6 2800 5528
Motta Montecorvino FG 8 730 6258
Roseto Valfortore FG 9 1074 7332
Volturara Appula FG 10 430 7762
Pietramontecorvino FG 11 2721 10483
Castelluccio Valmaggiore FG 12 1318 11801
San Bartolomeo in Galdo BN 12 4867 16668
Celle di San Vito FG 13 166 16834
Faeto FG 13 627 17461
San Marco la Catola FG 15 1012 18473
Troia FG 16 7195 25668
Castelnuovo della Daunia FG 16 1445 27113
Baselice BN 16 2397 29510
Lucera FG 17 33724 63234
Castelfranco in Miscano BN 17 916 64150
Casalvecchio di Puglia FG 17 1877 66027
Castelvetere in Val Fortore BN 18 1240 67267
Montefalcone di Val Fortore BN 18 1525 68792
Tufara CB 18 925 69717
Foiano di Val Fortore BN 18 1410 71127
Celenza Valfortore FG 20 1598 72725
Casalnuovo Monterotaro FG 20 1556 74281

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km W of Foggia (151991 inhabitants)
33 Km SW of San Severo (53905 inhabitants)
47 Km NE of Benevento (60091 inhabitants)
66 Km W of Cerignola (58396 inhabitants)
66 Km NE of Avellino (54857 inhabitants)
67 Km W of Manfredonia (57279 inhabitants)
80 Km NE of Caserta (76326 inhabitants)
86 Km NE of Acerra (59573 inhabitants)
91 Km NE of Cava de' Tirreni (53659 inhabitants)
91 Km NE of Salerno (135261 inhabitants)
91 Km NE of Afragola (65057 inhabitants)
93 Km NE of Scafati (50787 inhabitants)
94 Km NE of Casoria (77642 inhabitants)
94 Km N of Battipaglia (50786 inhabitants)
95 Km W of Barletta (94814 inhabitants)
95 Km NE of Aversa (53047 inhabitants)
96 Km NE of Portici (55274 inhabitants)
98 Km NE of Ercolano (53709 inhabitants)
98 Km NE of Giugliano in Campania (122974 inhabitants)
98 Km W of Andria (100440 inhabitants)
98 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 1.3 2020-11-20
09:43:58		 41.4435 15.1552 11 2021-02-26
14:56:14		 Bollettino Sismico Italiano INGV 86095201
Reviewed
Rev100 		ML 1.3 2020-11-20
09:43:58		 41.4453 15.1438 9 2020-11-20
09:57:46		 Sala Sismica INGV-Roma 84867921
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-20 09:43:58 ± 0.44
Latitude 41.4435 ± 0.0198
Longitude 15.1552 ± 0.0300
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86095201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2810
Semi-minor axis of confidence ellipse (meter) 1780
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 307
Circular confidence region, given by single value of horizontal uncertainty (meter) 2810.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 187
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.55
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.42718
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 11
Type of magnitude ML
Reference to an origin 86095201
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-08 12:10:42

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 11
Type of magnitude ML
Reference to an origin 84867921
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-20 09:57:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
ST.CARE.EHZ. 2020-11-20T09:45:30.43 3.0 undecidable manual Pn 2.35 0
GU.GRAM.HHZ. 2020-11-20T09:45:28.95 3.0 undecidable manual Pg 16.23 0
IV.MC2.EHZ. 2020-11-20T09:45:13.18 3.0 undecidable manual Sg 4.99 0
GU.POPM.HHZ. 2020-11-20T09:45:06.89 3.0 positive manual Pn 3.33 0
IV.PII.HHZ. 2020-11-20T09:45:05.25 3.0 positive manual Pn 2.46 0
IV.APEC.HHZ. 2020-11-20T09:44:46.20 3.0 undecidable manual Pn -0.61 0
IV.SACR.HNN. 2020-11-20T09:44:10.42 0.6 undecidable manual S 262 37.7289 50 -0.62 43
IV.CIGN.HHZ. 2020-11-20T09:44:10.20 0.6 undecidable manual S 318 31.2465 50 0.88 39
IV.MELA.HHZ. 2020-11-20T09:44:08.20 0.3 undecidable manual S 355 29.1486 50 -0.56 66
IV.APRC.HNE. 2020-11-20T09:44:07.70 0.6 undecidable manual P 43 47.4192 50 0.51 44
IV.GATE.HHZ. 2020-11-20T09:44:07.03 0.3 undecidable manual S 291 21.7671 50 0.25 73
IV.PSB1.HHZ. 2020-11-20T09:44:06.13 0.1 undecidable manual P 230 37.629 50 0.44 90
IV.CIGN.HHZ. 2020-11-20T09:44:05.51 0.1 undecidable manual P 318 31.2465 50 0.81 80
IV.SACR.HNN. 2020-11-20T09:44:04.90 0.1 undecidable manual P 262 37.7289 50 -0.8 79
IV.MELA.HHZ. 2020-11-20T09:44:03.94 0.1 undecidable manual P 355 29.1486 50 -0.44 92
IV.GATE.HHZ. 2020-11-20T09:44:03.15 0.1 undecidable manual P 291 21.7671 50 -0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GATE.HNE. ML:1.2 0.00011903689000000001 1.68 AML other m 2020-11-20T09:44:09.07
IV.GATE.HHE. ML:1.1 0.00009043406499999999 0.2432 AML other m 2020-11-20T09:44:12.57
IV.GATE.HHN. ML:1.1 0.0000889644 0.4416 AML other m 2020-11-20T09:44:12.49
IV.PSB1.HHE. ML:1.1 0.00004623522 0.6944 AML other m 2020-11-20T09:44:14.28
IV.GATE.HNN. ML:1.3 0.000146129985 0.96 AML other m 2020-11-20T09:44:17.12
IV.MELA.HNN. ML:1.8 0.00029397230000000003 0.6304 AML other m 2020-11-20T09:44:19.58
IV.MELA.HHE. ML:1.2 0.00007767688 0.8768 AML other m 2020-11-20T09:44:22.46
IV.MELA.HNE. ML:1.8 0.00027648835 0.8 AML other m 2020-11-20T09:44:24.59
IV.CIGN.HHN. ML:1.2 0.00006979621499999999 0.144 AML other m 2020-11-20T09:44:24.32
IV.MELA.HHN. ML:1.4 0.000113841345 0.9792 AML other m 2020-11-20T09:44:24.59
IV.CIGN.HHE. ML:1.2 0.00007087220499999999 0.3168 AML other m 2020-11-20T09:44:24.93
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