Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 10-09-2020 and time 17:30:44 (UTC) in region 4 km N San Gregorio Magno (SA)

A magnitude ML 1.4 earthquake occured in region: 4 km N San Gregorio Magno (SA), on

  • 10-09-2020 17:30:44 (UTC)
  • 10-09-2020 19:30:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.6970, 15.4030 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
San Gregorio Magno SA 5 4286 4286
Ricigliano SA 8 1144 5430
Buccino SA 8 5047 10477
Romagnano al Monte SA 8 368 10845
Muro Lucano PZ 9 5497 16342
Colliano SA 10 3638 19980
Palomonte SA 10 3985 23965
Castelgrande PZ 10 943 24908
Balvano PZ 11 1830 26738
Valva SA 12 1643 28381
Salvitelle SA 13 560 28941
Laviano SA 13 1438 30379
Bella PZ 13 5171 35550
Vietri di Potenza PZ 14 2832 38382
Oliveto Citra SA 14 3802 42184
Santomenna SA 14 443 42627
Contursi Terme SA 15 3394 46021
Castelnuovo di Conza SA 15 619 46640
Pescopagano PZ 16 1910 48550
Auletta SA 16 2336 50886
Baragiano PZ 16 2671 53557
Caggiano SA 16 2765 56322
Sant'Andrea di Conza AV 17 1539 57861
Sicignano degli Alburni SA 17 3519 61380
Senerchia AV 17 842 62222
Pertosa SA 18 690 62912
San Fele PZ 18 3004 65916
Calabritto AV 18 2391 68307
Petina SA 19 1159 69466
Rapone PZ 19 990 70456
Conza della Campania AV 19 1373 71829
Savoia di Lucania PZ 19 1127 72956
Caposele AV 20 3483 76439

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km W of Potenza (67122 inhabitants)
37 Km E of Battipaglia (50786 inhabitants)
54 Km E of Salerno (135261 inhabitants)
57 Km E of Avellino (54857 inhabitants)
59 Km E of Cava de' Tirreni (53659 inhabitants)
71 Km SE of Benevento (60091 inhabitants)
74 Km E of Scafati (50787 inhabitants)
76 Km SW of Cerignola (58396 inhabitants)
78 Km E of Castellammare di Stabia (66466 inhabitants)
86 Km S of Foggia (151991 inhabitants)
88 Km E of Torre del Greco (86275 inhabitants)
89 Km E of Portici (55274 inhabitants)
90 Km E of Ercolano (53709 inhabitants)
91 Km E of Acerra (59573 inhabitants)
95 Km E of Afragola (65057 inhabitants)
95 Km SW of Andria (100440 inhabitants)
96 Km E of Casoria (77642 inhabitants)
98 Km W of Altamura (70396 inhabitants)
98 Km E of Napoli (974074 inhabitants)
99 Km E of Caserta (76326 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 1.4 2020-09-10
17:30:44		 40.6972 15.4028 14 2021-02-26
14:55:56		 Bollettino Sismico Italiano INGV 83335821
Reviewed
Rev100 		ML 1.4 2020-09-10
17:30:44		 40.6932 15.4048 12 2020-09-10
17:40:53		 Sala Sismica INGV-Roma 82794241
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-10 17:30:44 ± 0.09
Latitude 40.6972 ± 0.0045
Longitude 15.4028 ± 0.0059
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 83335821

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 414
Semi-minor axis of confidence ellipse (meter) 394
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 44
Circular confidence region, given by single value of horizontal uncertainty (meter) 410.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 83
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.04766
Epicentral distance of station farthest from the epicenter (degree) 0.27160
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 13
Type of magnitude ML
Reference to an origin 83335821
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-09-28 15:27:49

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 15
Type of magnitude ML
Reference to an origin 82794241
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-10 17:40:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IX.CGG3.HNZ.01 2020-09-10T17:30:52.00 0.1 undecidable manual S 150 19.9689 108 -0.07 100
IX.SNR3.HNN.02 2020-09-10T17:30:51.30 0.3 undecidable manual S 284 18.1707 111 -0.33 71
IV.CAGG.EHZ. 2020-09-10T17:30:51.70 0.3 undecidable manual S 149 17.9709 111 0.12 74
IV.SNAL.HHZ. 2020-09-10T17:30:50.67 0.3 undecidable manual P 327 30.1476 99 0.41 69
IX.STN3.HNZ.02 2020-09-10T17:30:50.09 0.3 undecidable manual P 131 27.9498 100 0.15 73
IV.MRLC.HHZ. 2020-09-10T17:30:49.70 0.3 undecidable manual S 48 9.7791 135 -0.04 76
IX.COL3.HHE.02 2020-09-10T17:30:49.30 0.3 undecidable manual S 260 6.1938 150 0.15 75
IX.VDS3.HNZ.01 2020-09-10T17:30:49.20 0.3 undecidable manual S 23 5.2947 154 0.17 75
IX.SRN3.HNE.02 2020-09-10T17:30:49.18 0.3 undecidable manual P 169 23.8539 103 -0.14 73
IX.SNR3.HNN.02 2020-09-10T17:30:48.48 0.3 undecidable manual P 284 18.1707 111 0 76
IX.PST3.HHZ.02 2020-09-10T17:30:48.89 0.3 undecidable manual P 222 20.1687 107 0.12 74
IV.CAGG.EHZ. 2020-09-10T17:30:48.46 0.3 undecidable manual P 149 17.9709 111 0.01 76
IX.CGG3.HNZ.01 2020-09-10T17:30:48.65 0.6 undecidable manual P 150 19.9689 108 -0.09 50
IX.COL3.HHE.02 2020-09-10T17:30:47.02 0.3 undecidable manual P 260 6.1938 150 -0.03 77
IV.MRLC.HHZ. 2020-09-10T17:30:47.10 0.3 undecidable manual P 48 9.7791 135 -0.28 72
IX.VDS3.HNZ.01 2020-09-10T17:30:46.75 0.3 undecidable manual P 23 5.2947 154 -0.23 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MRLC.HHN. ML:1.6 0.00043620974999999994 0.1408 AML other m 2020-09-10T17:30:50.38
IV.MRLC.HNN. ML:1.3 0.0001923994 0.1408 AML other m 2020-09-10T17:30:50.38
IV.MRLC.HHE. ML:1.5 0.00029761825 0.2432 AML other m 2020-09-10T17:30:50.87
IV.MRLC.HNE. ML:1.1 0.00013614604999999998 0.2176 AML other m 2020-09-10T17:30:50.89
IX.STN3.HHN.02 ML:2.9 0.0039186045 0.1792 AML other m 2020-09-10T17:30:56.30
IV.SNAL.HNE. ML:1.2 0.000072839095 0.2304 AML other m 2020-09-10T17:30:57.39
IV.SNAL.HHE. ML:1.2 0.00008032207499999999 0.2048 AML other m 2020-09-10T17:30:57.17
IV.SNAL.HHN. ML:1.2 0.000079136605 0.1536 AML other m 2020-09-10T17:30:57.50
IV.SNAL.HNN. ML:1.2 0.00007997079 0.2048 AML other m 2020-09-10T17:30:57.50
IX.STN3.HHE.02 ML:2.9 0.0037996170000000004 1.68 AML other m 2020-09-10T17:30:59.00
IV.SLCN.HNE. ML:1.6 0.0001442991 0.3456 AML other m 2020-09-10T17:30:59.08
IV.SLCN.HHE. ML:1.5 0.00010070935 0.4608 AML other m 2020-09-10T17:31:00.29
IV.SLCN.HHN. ML:1.3 0.00006906409 0.256 AML other m 2020-09-10T17:31:02.76
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