Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 28-09-2020 and time 15:24:02 (UTC) in region 5 km N Gambatesa (CB)

A magnitude ML 1.8 earthquake occured in region: 5 km N Gambatesa (CB), on

  • 28-09-2020 15:24:02 (UTC)
  • 28-09-2020 17:24:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.5510, 14.9190 at 22 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
Gambatesa CB 5 1464 1464
Macchia Valfortore CB 5 576 2040
Celenza Valfortore FG 5 1598 3638
Pietracatella CB 5 1375 5013
Carlantino FG 7 980 5993
San Marco la Catola FG 8 1012 7005
Tufara CB 8 925 7930
Sant'Elia a Pianisi CB 9 1818 9748
Riccia CB 10 5262 15010
Jelsi CB 11 1781 16791
Monacilioni CB 11 523 17314
Castelvetere in Val Fortore BN 12 1240 18554
Volturara Appula FG 13 430 18984
Toro CB 13 1391 20375
Colletorto CB 13 1938 22313
Campodipietra CB 14 2570 24883
San Giovanni in Galdo CB 15 580 25463
Gildone CB 16 809 26272
San Giuliano di Puglia CB 16 1042 27314
Campolieto CB 16 839 28153
Casalvecchio di Puglia FG 17 1877 30030
Motta Montecorvino FG 17 730 30760
Castelnuovo della Daunia FG 17 1445 32205
Bonefro CB 17 1384 33589
Casalnuovo Monterotaro FG 17 1556 35145
Pietramontecorvino FG 18 2721 37866
Baselice BN 18 2397 40263
San Bartolomeo in Galdo BN 18 4867 45130
Ripabottoni CB 18 514 45644
Matrice CB 19 1115 46759
Castelpagano BN 19 1483 48242
Volturino FG 19 1743 49985
Santa Croce di Magliano CB 19 4435 54420
Cercemaggiore CB 19 3777 58197

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km W of San Severo (53905 inhabitants)
48 Km N of Benevento (60091 inhabitants)
53 Km W of Foggia (151991 inhabitants)
72 Km N of Avellino (54857 inhabitants)
72 Km NE of Caserta (76326 inhabitants)
81 Km NE of Acerra (59573 inhabitants)
84 Km W of Manfredonia (57279 inhabitants)
86 Km NE of Afragola (65057 inhabitants)
88 Km NE of Aversa (53047 inhabitants)
88 Km W of Cerignola (58396 inhabitants)
89 Km NE of Casoria (77642 inhabitants)
92 Km NE of Giugliano in Campania (122974 inhabitants)
94 Km NE of Portici (55274 inhabitants)
95 Km NE of Marano di Napoli (59874 inhabitants)
95 Km NE of Scafati (50787 inhabitants)
95 Km NE of Ercolano (53709 inhabitants)
96 Km N of Cava de' Tirreni (53659 inhabitants)
97 Km NE of Torre del Greco (86275 inhabitants)
97 Km NE of Napoli (974074 inhabitants)
98 Km N of Salerno (135261 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 1.8 2020-09-28
15:24:02		 41.5513 14.9193 22 2021-02-26
14:56:09		 Bollettino Sismico Italiano INGV 85314491
Reviewed
Rev100 		ML 1.9 2020-09-28
15:24:02		 41.5353 14.9665 28 2020-09-28
15:30:14		 Sala Sismica INGV-Roma 83336001
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-28 15:24:02 ± 0.13
Latitude 41.5513 ± 0.0081
Longitude 14.9193 ± 0.0084
Depth (km) 22 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 85314491

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 923
Semi-minor axis of confidence ellipse (meter) 241
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 145
Circular confidence region, given by single value of horizontal uncertainty (meter) 920.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 97
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.03867
Epicentral distance of station farthest from the epicenter (degree) 0.75723
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 30
Type of magnitude ML
Reference to an origin 85314491
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-12-22 15:56:29

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 83336001
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-28 15:30:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MIDA.HNZ. 2020-09-28T15:24:20.80 0.6 undecidable manual S 281 56.0994 103 0.37 44
IV.MSAG.HNE. 2020-09-28T15:24:18.05 0.3 undecidable manual P 77 84.0492 98 0.9 51
IV.LPEL.HHE. 2020-09-28T15:24:16.64 0.3 undecidable manual P 312 82.0512 99 -0.21 64
IV.TRIV.HHZ. 2020-09-28T15:24:16.98 1.0 undecidable manual S 308 38.8278 111 0.96 18
IV.PSB1.HHZ. 2020-09-28T15:24:15.87 0.3 undecidable manual S 194 37.4292 112 0.19 70
IV.SGRT.HHN. 2020-09-28T15:24:15.75 0.6 undecidable manual P 71 71.9724 100 0.43 42
OT.OT03.EHE. 2020-09-28T15:24:14.09 0.6 undecidable manual P 73 63.0924 102 0.11 45
IV.RNI2.HNE. 2020-09-28T15:24:14.10 0.3 undecidable manual P 285 65.7897 101 -0.28 65
IV.VAGA.HHZ. 2020-09-28T15:24:13.28 0.3 undecidable manual P 255 58.8966 103 -0.06 69
IV.APRC.HHN. 2020-09-28T15:24:13.08 0.3 undecidable manual P 66 56.499 103 0.09 69
IV.BSSO.HHZ. 2020-09-28T15:24:13.93 0.6 undecidable manual S 269 27.0507 121 0.75 41
OT.OT06.EHZ. 2020-09-28T15:24:12.90 0.6 undecidable manual P 75 57.8976 103 -0.3 44
IV.SACR.HHZ. 2020-09-28T15:24:12.95 0.3 undecidable manual S 226 24.6531 124 0.31 70
IV.MIDA.HNZ. 2020-09-28T15:24:12.45 0.3 undecidable manual P 281 56.0994 103 -0.48 64
OT.OT05.EHE. 2020-09-28T15:24:12.09 0.3 undecidable manual P 78 57.8976 103 -1.11 49
IV.MELA.HHZ. 2020-09-28T15:24:12.83 0.3 undecidable manual S 45 24.2535 124 0.26 71
IV.VITU.HHZ. 2020-09-28T15:24:11.44 0.1 undecidable manual P 211 47.4192 106 -0.19 92
IV.SGG.HHZ. 2020-09-28T15:24:11.37 0.3 undecidable manual P 248 48.5181 106 -0.42 65
IV.MRB1.HHZ. 2020-09-28T15:24:11.87 0.3 undecidable manual P 175 47.7189 106 0.2 69
IV.PSB1.HHZ. 2020-09-28T15:24:10.05 0.1 undecidable manual P 194 37.4292 112 -0.13 95
IV.TRIV.HHZ. 2020-09-28T15:24:10.73 0.1 undecidable manual P 308 38.8278 111 0.36 90
IV.GATE.HHZ. 2020-09-28T15:24:09.20 0.3 undecidable manual S 190 4.2957 167 -0.23 74
IV.PTRJ.HNN. 2020-09-28T15:24:09.94 0.3 undecidable manual P 238 38.5281 111 -0.39 67
IV.CIGN.HHZ. 2020-09-28T15:24:09.70 0.3 undecidable manual S 354 11.4774 148 -0.47 69
IV.MELA.HHZ. 2020-09-28T15:24:08.35 0.1 positive manual P 45 24.2535 124 -0.03 99
IV.BSSO.HHZ. 2020-09-28T15:24:08.74 0.1 undecidable manual P 269 27.0507 121 0 99
IV.SACR.HHZ. 2020-09-28T15:24:08.32 0.1 undecidable manual P 226 24.6531 124 -0.1 97
IV.CIGN.HHZ. 2020-09-28T15:24:07.09 0.1 undecidable manual P 354 11.4774 148 0.09 100
IV.GATE.HHZ. 2020-09-28T15:24:06.91 0.1 undecidable manual P 190 4.2957 167 0.34 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BSSO.HNE. ML:1.9 0.0003303751 1.8624 AML other m 2020-09-28T15:24:09.94
IV.BSSO.HHE. ML:1.9 0.00032906829999999995 1.8368 AML other m 2020-09-28T15:24:09.93
IV.GATE.HNE. ML:2.0 0.0007874770499999999 0.2304 AML other m 2020-09-28T15:24:10.45
IV.GATE.HHE. ML:2.0 0.00078517725 0.2176 AML other m 2020-09-28T15:24:10.46
IV.SGG.HNN. ML:2.1 0.000293279695 1.3472 AML other m 2020-09-28T15:24:10.69
IV.GATE.HNN. ML:2.1 0.00109560575 1.6288 AML other m 2020-09-28T15:24:12.06
IV.GATE.HHN. ML:2.2 0.00110328995 0.3968 AML other m 2020-09-28T15:24:12.08
IV.MELA.HHE. ML:2.0 0.0005297655 0.1536 AML other m 2020-09-28T15:24:12.99
IV.MELA.HNE. ML:2.0 0.00047661339999999995 1.8464 AML other m 2020-09-28T15:24:13.99
IV.MELA.HHN. ML:2.0 0.00045018449999999997 0.2176 AML other m 2020-09-28T15:24:12.99
IV.MELA.HNN. ML:2.0 0.00053281725 0.2432 AML other m 2020-09-28T15:24:13.15
IV.SACR.HNN. ML:1.3 0.00009082087 0.3584 AML other m 2020-09-28T15:24:13.58
IV.BSSO.HHN. ML:1.6 0.0001596511 0.384 AML other m 2020-09-28T15:24:14.37
IV.CIGN.HHN. ML:1.5 0.00022695340000000004 0.3584 AML other m 2020-09-28T15:24:14.91
IV.SACR.HHE. ML:1.3 0.00010098937250000001 0.3456 AML other m 2020-09-28T15:24:14.82
IV.PSB1.HHE. ML:1.5 0.0000970508415 0.2048 AML other m 2020-09-28T15:24:16.06
IV.PSB1.HNE. ML:1.6 0.000112708235 1.744 AML other m 2020-09-28T15:24:15.10
IV.CIGN.HHE. ML:1.4 0.00017835993 0.5376 AML other m 2020-09-28T15:24:16.40
IV.SACR.HHN. ML:1.3 0.00009259181499999999 0.5632 AML other m 2020-09-28T15:24:17.53
IV.SGG.HHE. ML:1.4 0.000063203465 0.4864 AML other m 2020-09-28T15:24:23.00
IV.APRC.HNE. ML:1.8 0.00012027721 0.2432 AML other m 2020-09-28T15:24:23.86
IV.APRC.HHE. ML:1.7 0.000107314365 0.2432 AML other m 2020-09-28T15:24:23.74
IV.APRC.HHN. ML:1.9 0.00017674431 0.2816 AML other m 2020-09-28T15:24:24.22
IV.SGRT.HHE. ML:1.9 0.00010937281 0.2816 AML other m 2020-09-28T15:24:26.64
IV.SGRT.HHN. ML:2.0 0.00016514555 0.2048 AML other m 2020-09-28T15:24:27.67
IV.BSSO.HNN. ML:1.7 0.0002322363 0.08 AML other m 2020-09-28T15:24:28.23
IV.LPEL.HHN. ML:1.6 0.000049561510000000004 0.1536 AML other m 2020-09-28T15:24:30.57
IV.SGG.HHN. ML:1.5 0.000073485065 0.4992 AML other m 2020-09-28T15:24:31.91
IV.LPEL.HHE. ML:1.6 0.000045715095 0.2176 AML other m 2020-09-28T15:24:35.63
IV.LPEL.HNE. ML:2.0 0.00014333835 0.9088 AML other m 2020-09-28T15:24:36.59
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