Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 03-01-2021 and time 23:50:33 (Italy) in region 6 km W Castelgrande (PZ)

A magnitude ML 1.3 earthquake occured in region: 6 km W Castelgrande (PZ), on

  • 03-01-2021 22:50:33 (UTC)
  • 03-01-2021 23:50:33 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.7640, 15.3700 at 16 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
Castelgrande PZ 6 943 943
Laviano SA 6 1438 2381
Santomenna SA 6 443 2824
Castelnuovo di Conza SA 7 619 3443
Colliano SA 8 3638 7081
Pescopagano PZ 8 1910 8991
Valva SA 9 1643 10634
Sant'Andrea di Conza AV 9 1539 12173
Muro Lucano PZ 10 5497 17670
Conza della Campania AV 11 1373 19043
San Gregorio Magno SA 12 4286 23329
Calabritto AV 13 2391 25720
Palomonte SA 13 3985 29705
Caposele AV 13 3483 33188
Teora AV 14 1537 34725
Oliveto Citra SA 14 3802 38527
Senerchia AV 14 842 39369
Rapone PZ 14 990 40359
Bella PZ 14 5171 45530
Ricigliano SA 14 1144 46674
Buccino SA 15 5047 51721
Cairano AV 15 326 52047
San Fele PZ 16 3004 55051
Romagnano al Monte SA 16 368 55419
Calitri AV 16 4666 60085
Contursi Terme SA 17 3394 63479
Ruvo del Monte PZ 17 1083 64562
Balvano PZ 17 1830 66392
Andretta AV 19 1927 68319
Lioni AV 20 6201 74520

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km E of Battipaglia (50786 inhabitants)
39 Km W of Potenza (67122 inhabitants)
51 Km E of Avellino (54857 inhabitants)
52 Km E of Salerno (135261 inhabitants)
56 Km E of Cava de' Tirreni (53659 inhabitants)
64 Km SE of Benevento (60091 inhabitants)
71 Km E of Scafati (50787 inhabitants)
72 Km SW of Cerignola (58396 inhabitants)
75 Km E of Castellammare di Stabia (66466 inhabitants)
79 Km S of Foggia (151991 inhabitants)
85 Km E of Torre del Greco (86275 inhabitants)
86 Km E of Portici (55274 inhabitants)
86 Km E of Ercolano (53709 inhabitants)
86 Km E of Acerra (59573 inhabitants)
91 Km E of Afragola (65057 inhabitants)
92 Km E of Casoria (77642 inhabitants)
93 Km SW of Andria (100440 inhabitants)
94 Km E of Caserta (76326 inhabitants)
95 Km E of Napoli (974074 inhabitants)
98 Km SW of Barletta (94814 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 2021-01-03
22:50:33		 40.7643 15.3703 16 2021-07-12
16:54:57		 Bollettino Sismico Italiano INGV 86851571
Reviewed
Rev100 		ML 1.2 2021-01-03
22:50:34		 40.7705 15.3717 14 2021-01-03
22:58:37		 Sala Sismica INGV-Roma 86000911
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-03 22:50:33 ± 0.15
Latitude 40.7643 ± 0.0054
Longitude 15.3703 ± 0.0083
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86851571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 708
Semi-minor axis of confidence ellipse (meter) 240
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 239
Circular confidence region, given by single value of horizontal uncertainty (meter) 710.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 74
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.04856
Epicentral distance of station farthest from the epicenter (degree) 0.68978
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 86851571
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-05 11:15:21

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 86000911
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-03 22:58:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MRVN.HHZ. 2021-01-03T22:50:46.95 0.3 undecidable manual P 64 76.5678 95 -0.26 65
IV.SNAL.HHZ. 2021-01-03T22:50:43.32 0.6 undecidable manual S 323 22.4553 114 0.6 44
IV.SGO.HHZ. 2021-01-03T22:50:43.54 0.6 undecidable manual S 193 23.2545 113 0.62 44
IX.SALI.HNN.01 2021-01-03T22:50:43.90 0.6 undecidable manual S 319 24.3534 112 0.7 42
IV.ACER.HHZ. 2021-01-03T22:50:42.59 0.3 undecidable manual P 87 48.1185 98 -0.26 69
IV.CAFE.HHE. 2021-01-03T22:50:40.20 0.3 undecidable manual P 339 31.3464 105 -0.11 73
IX.SNR3.HHZ. 2021-01-03T22:50:40.58 0.6 undecidable manual S 258 15.2736 128 -0.5 46
IX.CSG3.HNE.01 2021-01-03T22:50:40.33 0.6 undecidable manual S 53 9.7791 143 0.28 49
IX.SALI.HNN.01 2021-01-03T22:50:39.26 0.1 undecidable manual P 319 24.3534 112 -0.03 100
IV.MRLC.HHZ. 2021-01-03T22:50:39.90 0.3 undecidable manual S 95 9.9789 142 -0.18 75
IX.COL3.HNE.02 2021-01-03T22:50:39.82 0.3 undecidable manual S 201 9.1797 145 -0.13 76
IX.BEL3.HNE.01 2021-01-03T22:50:39.88 0.3 undecidable manual P 104 23.0547 113 0.78 61
IV.SGO.HHZ. 2021-01-03T22:50:39.15 0.3 undecidable manual P 193 23.2545 113 0.02 76
IX.VDS3.HNN.01 2021-01-03T22:50:39.81 0.6 undecidable manual S 119 5.3946 158 0.35 48
IX.LIO3.HHN.02 2021-01-03T22:50:38.72 0.3 undecidable manual P 313 21.6672 115 -0.19 73
IX.CLT3.HNZ.02 2021-01-03T22:50:38.19 0.3 undecidable manual P 10 15.6732 127 0.07 76
IV.SNAL.HHZ. 2021-01-03T22:50:38.95 0.3 undecidable manual P 323 22.4553 114 -0.06 75
IX.SNR3.HHZ. 2021-01-03T22:50:37.99 0.3 undecidable manual P 258 15.2736 128 -0.08 76
IX.CSG3.HNE.01 2021-01-03T22:50:37.36 0.3 undecidable manual P 53 9.7791 143 -0.11 76
IX.VDS3.HNN.01 2021-01-03T22:50:37.06 0.3 undecidable manual P 119 5.3946 158 -0.07 77
IV.MRLC.HHZ. 2021-01-03T22:50:37.23 0.1 undecidable manual P 95 9.9789 142 -0.26 98
IX.COL3.HNE.02 2021-01-03T22:50:37.26 0.3 undecidable manual P 201 9.1797 145 -0.16 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MRLC.HNE. ML:1.1 0.00011499999999999999 0.14 AML other m 2021-01-03T22:50:40.44
IV.MRLC.HHE. ML:1.5 0.0002565 0.14 AML other m 2021-01-03T22:50:40.44
IV.MRLC.HNN. ML:1.2 0.0001265 0.62 AML other m 2021-01-03T22:50:42.09
IV.MRLC.HHN. ML:1.5 0.000255 0.62 AML other m 2021-01-03T22:50:42.09
IV.SGO.HHN. ML:1.3 0.00011649999999999999 0.14 AML other m 2021-01-03T22:50:43.84
IV.SGO.HHE. ML:1.2 0.00009005 1.56 AML other m 2021-01-03T22:50:44.05
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