Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 20-01-2021 and time 05:05:45 (UTC) in region 3 km W Bellosguardo (SA)

A magnitude ML 2.0 earthquake occured in region: 3 km W Bellosguardo (SA), on

  • 20-01-2021 05:05:45 (UTC)
  • 20-01-2021 06:05:45 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.4100, 15.2780 at 14 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
Bellosguardo SA 3 794 794
Castel San Lorenzo SA 4 2471 3265
Aquara SA 4 1545 4810
Felitto SA 5 1283 6093
Roscigno SA 6 817 6910
Ottati SA 7 618 7528
Roccadaspide SA 7 7209 14737
Sant'Angelo a Fasanella SA 8 635 15372
Magliano Vetere SA 8 695 16067
Sacco SA 9 492 16559
Monteforte Cilento SA 9 564 17123
Corleto Monforte SA 9 592 17715
Laurino SA 10 1548 19263
Castelcivita SA 10 1739 21002
Valle dell'Angelo SA 11 248 21250
Stio SA 11 872 22122
Piaggine SA 11 1311 23433
Campora SA 12 439 23872
Controne SA 13 875 24747
Gioi SA 14 1278 26025
Giungano SA 14 1280 27305
Trentinara SA 14 1646 28951
Cicerale SA 15 1220 30171
Orria SA 15 1089 31260
Petina SA 16 1159 32419
Albanella SA 16 6513 38932
San Rufo SA 16 1754 40686
Perito SA 17 931 41617
Capaccio Paestum SA 17 22810 64427
Postiglione SA 17 2151 66578
Sicignano degli Alburni SA 17 3519 70097
Altavilla Silentina SA 18 7051 77148
Moio della Civitella SA 18 1827 78975
San Pietro al Tanagro SA 19 1695 80670
Cannalonga SA 19 1063 81733
Sant'Arsenio SA 19 2815 84548
Salento SA 19 1977 86525
Prignano Cilento SA 20 1018 87543

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km SE of Battipaglia (50786 inhabitants)
51 Km SW of Potenza (67122 inhabitants)
53 Km SE of Salerno (135261 inhabitants)
58 Km SE of Cava de' Tirreni (53659 inhabitants)
69 Km SE of Avellino (54857 inhabitants)
74 Km SE of Scafati (50787 inhabitants)
74 Km E of Castellammare di Stabia (66466 inhabitants)
88 Km E of Torre del Greco (86275 inhabitants)
90 Km SE of Benevento (60091 inhabitants)
90 Km SE of Ercolano (53709 inhabitants)
91 Km SE of Portici (55274 inhabitants)
97 Km SE of Acerra (59573 inhabitants)
99 Km SE of Napoli (974074 inhabitants)
100 Km SE of Afragola (65057 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 2.0 2021-01-20
05:05:45		 40.4103 15.2783 15 2021-07-12
16:54:56		 Bollettino Sismico Italiano INGV 86696701
Reviewed
Rev100 		ML 2.0 2021-01-20
05:05:45		 40.4142 15.317 14 2021-01-20
05:14:13		 Sala Sismica INGV-Roma 86390361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-20 05:05:45 ± 0.13
Latitude 40.4103 ± 0.0054
Longitude 15.2783 ± 0.0118
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86696701

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 806
Semi-minor axis of confidence ellipse (meter) 667
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 261
Circular confidence region, given by single value of horizontal uncertainty (meter) 810.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 171
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.08184
Epicentral distance of station farthest from the epicenter (degree) 0.62863
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:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 38
Type of magnitude ML
Reference to an origin 86696701
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-05-27 09:42:52

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 38
Type of magnitude ML
Reference to an origin 86390361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-20 05:14:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ACER.HHZ. 2021-01-20T05:05:58.45 0.6 undecidable manual P 53 69.7746 93 0.43 42
IX.LGS3.HNE.01 2021-01-20T05:05:57.73 0.6 undecidable manual P 339 68.376 94 -0.06 45
IX.CLT3.HHE.02 2021-01-20T05:05:56.41 0.3 undecidable manual P 11 55.6998 95 0.57 62
IV.SNAL.HHZ. 2021-01-20T05:05:56.21 0.6 undecidable manual P 354 57.3981 94 0.1 46
IX.COL3.HHE.02 2021-01-20T05:05:56.90 0.3 undecidable manual S 8 31.0467 101 0.25 70
IV.SIRI.HHZ. 2021-01-20T05:05:55.63 0.6 undecidable manual P 117 55.8996 95 -0.25 45
IV.PZUN.HHZ. 2021-01-20T05:05:55.77 0.6 undecidable manual P 59 51.7038 95 0.54 42
IX.PGN3.HHZ.02 2021-01-20T05:05:54.46 0.3 undecidable manual P 68 47.3193 96 -0.09 70
IX.TEGI.HNE.01 2021-01-20T05:05:54.20 0.3 undecidable manual S 99 22.0668 108 -0.13 73
IV.MCEL.HHZ. 2021-01-20T05:05:54.10 0.6 undecidable manual P 102 45.2214 96 -0.14 47
IV.MCRV.HHN. 2021-01-20T05:05:53.70 0.3 undecidable manual P 347 42.3243 97 -0.1 71
IV.BULG.HHZ. 2021-01-20T05:05:53.12 0.3 undecidable manual P 167 37.7289 98 0.02 72
IV.MRLC.HHZ. 2021-01-20T05:05:53.78 0.3 undecidable manual P 25 42.3243 97 -0.01 72
IX.MRN3.HNE.01 2021-01-20T05:05:53.87 0.3 undecidable manual P 87 38.1285 98 0.71 60
IX.STN3.HHZ.02 2021-01-20T05:05:52.27 0.3 undecidable manual P 67 34.1436 99 -0.28 69
IX.SCL3.HNE.02 2021-01-20T05:05:52.56 0.3 undecidable manual P 32 37.2294 98 -0.45 66
IV.MGR.HHZ. 2021-01-20T05:05:52.55 0.3 undecidable manual P 142 38.1285 98 -0.61 63
IV.SGO.HHZ. 2021-01-20T05:05:52.70 0.3 undecidable manual S 8 16.872 118 -0.34 70
IX.COL3.HHE.02 2021-01-20T05:05:52.09 0.3 undecidable manual P 8 31.0467 101 0.02 73
IX.VDP3.HNN.01 2021-01-20T05:05:52.29 0.3 undecidable manual P 49 32.8449 100 -0.07 73
IV.CMPR.HHZ. 2021-01-20T05:05:51.80 0.3 undecidable manual S 168 10.4784 135 0.14 75
IT.SLC1.HGN. 2021-01-20T05:05:51.63 0.3 undecidable manual P 93 26.8509 103 0.18 71
IV.CDRU.HHZ. 2021-01-20T05:05:51.20 0.3 undecidable manual S 14 9.0798 140 -0.22 72
IV.SLCN.HHZ. 2021-01-20T05:05:51.78 0.3 undecidable manual P 94 30.0477 101 -0.14 72
IX.TEGI.HNE.01 2021-01-20T05:05:50.42 0.3 undecidable manual P 99 22.0668 108 -0.31 70
IV.CMPR.HHZ. 2021-01-20T05:05:49.46 0.1 undecidable manual P 168 10.4784 135 0.26 97
IV.CDRU.HHZ. 2021-01-20T05:05:49.18 0.1 undecidable manual P 14 9.0798 140 0.13 100
IV.SGO.HHZ. 2021-01-20T05:05:49.99 0.3 undecidable manual P 8 16.872 118 0 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CDRU.HHN. ML:2.6 0.00414 0.26 AML other m 2021-01-20T05:05:51.56
IV.CDRU.HHE. ML:2.5 0.0029954035 0.1824 AML other m 2021-01-20T05:05:52.73
IV.SGO.HNE. ML:2.2 0.001245 0.2 AML other m 2021-01-20T05:05:52.88
IV.SGO.HHN. ML:2.6 0.002785 0.18 AML other m 2021-01-20T05:05:52.90
IV.SGO.HNN. ML:2.5 0.00263 0.18 AML other m 2021-01-20T05:05:52.90
IV.SGO.HHE. ML:2.2 0.0011646410000000001 0.2208 AML other m 2021-01-20T05:05:53.66
IV.MGR.HNN. ML:2.0 0.000368 0.24 AML other m 2021-01-20T05:05:58.97
IV.MGR.HHN. ML:2.0 0.000314 0.22 AML other m 2021-01-20T05:05:58.96
IV.MGR.HHE. ML:1.8 0.0001985 0.2 AML other m 2021-01-20T05:05:59.10
IV.MGR.HNE. ML:1.8 0.00023799999999999998 0.56 AML other m 2021-01-20T05:05:59.69
IX.STN3.HHN.02 ML:3.9 0.02885 0.36 AML other m 2021-01-20T05:05:59.28
IV.SLCN.HNE. ML:2.2 0.0007605 0.4 AML other m 2021-01-20T05:05:59.63
IV.SLCN.HHE. ML:2.3 0.0008785 0.6 AML other m 2021-01-20T05:05:59.63
IX.STN3.HHE.02 ML:3.8 0.0256 0.46 AML other m 2021-01-20T05:05:59.93
IV.SLCN.HHN. ML:2.1 0.000603 1.72 AML other m 2021-01-20T05:06:00.88
IV.SLCN.HNN. ML:2.1 0.0006115 1.7 AML other m 2021-01-20T05:06:00.03
IV.BULG.HHE. ML:1.9 0.00027749999999999997 0.2 AML other m 2021-01-20T05:06:01.56
IV.BULG.HNE. ML:1.9 0.00027 0.22 AML other m 2021-01-20T05:06:01.57
IV.BULG.HHN. ML:2.1 0.00041749999999999996 0.22 AML other m 2021-01-20T05:06:02.37
IV.BULG.HNN. ML:2.1 0.000404 0.22 AML other m 2021-01-20T05:06:02.37
IV.MCEL.HHE. ML:1.8 0.0001915 0.52 AML other m 2021-01-20T05:06:04.40
IV.MRLC.HHN. ML:1.7 0.00014900000000000002 0.34 AML other m 2021-01-20T05:06:04.82
IV.MRLC.HHE. ML:1.8 0.000177 0.52 AML other m 2021-01-20T05:06:05.06
IV.MRLC.HNE. ML:1.5 0.00009385 0.5 AML other m 2021-01-20T05:06:05.07
IV.MCEL.HNE. ML:2.1 0.00035049999999999995 0.66 AML other m 2021-01-20T05:06:05.41
IV.MRLC.HNN. ML:1.4 0.000077 1.38 AML other m 2021-01-20T05:06:05.82
IV.SIRI.HHE. ML:1.9 0.0001715 0.3 AML other m 2021-01-20T05:06:05.83
IV.SIRI.HNE. ML:1.9 0.000176 0.34 AML other m 2021-01-20T05:06:05.66
IV.MCEL.HHN. ML:1.8 0.00019800000000000002 0.6 AML other m 2021-01-20T05:06:06.68
IV.SIRI.HNN. ML:1.8 0.00014600000000000003 1.06 AML other m 2021-01-20T05:06:06.96
IV.SIRI.HHN. ML:1.8 0.0001535 1.06 AML other m 2021-01-20T05:06:06.96
IV.MCEL.HNN. ML:2.2 0.0003985 0.66 AML other m 2021-01-20T05:06:07.36
IV.SNAL.HHN. ML:1.8 0.0001475 1.12 AML other m 2021-01-20T05:06:11.21
IV.SNAL.HNN. ML:1.8 0.0001476 1.44 AML other m 2021-01-20T05:06:11.06
IV.SNAL.HHE. ML:1.9 0.0001615 0.64 AML other m 2021-01-20T05:06:12.73
IV.SNAL.HNE. ML:1.8 0.0001485 0.66 AML other m 2021-01-20T05:06:12.74
IV.ACER.HHN. ML:2.0 0.0001825 0.4 AML other m 2021-01-20T05:06:13.73
IV.ACER.HHE. ML:2.1 0.00021499999999999997 0.5 AML other m 2021-01-20T05:06:14.30
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
Waveforms Seismic signals in miniseed + resp format Download