Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 16-12-2021 and time 22:18:19 (UTC) in region 3 km NE Castelgrande (PZ)

A magnitude ML 1.6 earthquake occured in region: 3 km NE Castelgrande (PZ), on

  • 16-12-2021 22:18:19 (UTC)
  • 16-12-2021 23:18:19 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.7990, 15.4590 at 9 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 3 943 943
Muro Lucano PZ 6 5497 6440
Rapone PZ 6 990 7430
Pescopagano PZ 7 1910 9340
San Fele PZ 7 3004 12344
Bella PZ 8 5171 17515
Sant'Andrea di Conza AV 9 1539 19054
Ruvo del Monte PZ 9 1083 20137
Calitri AV 12 4666 24803
Santomenna SA 12 443 25246
Castelnuovo di Conza SA 12 619 25865
Conza della Campania AV 12 1373 27238
Laviano SA 13 1438 28676
Cairano AV 13 326 29002
Ricigliano SA 15 1144 30146
Colliano SA 16 3638 33784
San Gregorio Magno SA 17 4286 38070
Balvano PZ 17 1830 39900
Valva SA 17 1643 41543
Baragiano PZ 18 2671 44214
Teora AV 18 1537 45751
Atella PZ 19 3827 49578
Andretta AV 19 1927 51505
Romagnano al Monte SA 19 368 51873
Caposele AV 20 3483 55356

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km NW of Potenza (67122 inhabitants)
45 Km E of Battipaglia (50786 inhabitants)
57 Km E of Avellino (54857 inhabitants)
60 Km E of Salerno (135261 inhabitants)
64 Km SW of Cerignola (58396 inhabitants)
64 Km E of Cava de' Tirreni (53659 inhabitants)
68 Km SE of Benevento (60091 inhabitants)
74 Km S of Foggia (151991 inhabitants)
79 Km E of Scafati (50787 inhabitants)
83 Km E of Castellammare di Stabia (66466 inhabitants)
85 Km SW of Andria (100440 inhabitants)
90 Km SW of Barletta (94814 inhabitants)
92 Km E of Torre del Greco (86275 inhabitants)
92 Km W of Altamura (70396 inhabitants)
93 Km E of Acerra (59573 inhabitants)
93 Km E of Portici (55274 inhabitants)
94 Km E of Ercolano (53709 inhabitants)
96 Km SW of Trani (56217 inhabitants)
97 Km W of Matera (60436 inhabitants)
98 Km E of Afragola (65057 inhabitants)
99 Km S of San Severo (53905 inhabitants)
99 Km E of Casoria (77642 inhabitants)
99 Km E of Caserta (76326 inhabitants)
100 Km SW of Manfredonia (57279 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 1.6 2021-12-16
22:18:19		 40.7993 15.4587 9 2022-03-30
13:04:30		 Bollettino Sismico Italiano INGV 99776231
Reviewed
Rev100 		ML 1.6 2021-12-16
22:18:20		 40.8075 15.458 7 2021-12-16
22:40:53		 Sala Sismica INGV-Roma 98602491
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-16 22:18:19 ± 0.08
Latitude 40.7993 ± 0.0045
Longitude 15.4587 ± 0.0059
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 99776231

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 490
Semi-minor axis of confidence ellipse (meter) 265
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 58
Circular confidence region, given by single value of horizontal uncertainty (meter) 490.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 70
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) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.04856
Epicentral distance of station farthest from the epicenter (degree) 0.42988
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 17
Type of magnitude ML
Reference to an origin 99776231
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-03-23 10:02:45

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 13
Type of magnitude ML
Reference to an origin 98602491
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-16 22:40:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CDRU.HNZ. 2021-12-16T22:18:32.95 0.6 undecidable manual S 201 36.741 50 0.39 45
IV.SGO.HNN. 2021-12-16T22:18:30.83 0.6 undecidable manual S 206 29.4483 107 0.35 46
IV.SLCN.HHE. 2021-12-16T22:18:29.13 0.3 undecidable manual P 162 47.7189 50 0.26 67
IV.SNAL.HHZ. 2021-12-16T22:18:29.70 0.6 undecidable manual S 304 25.1526 109 0.62 42
IV.MCRV.HHZ. 2021-12-16T22:18:28.38 0.6 undecidable manual S 266 24.4533 110 -0.47 45
IV.ACER.HHN. 2021-12-16T22:18:28.07 0.6 undecidable manual P 92 40.626 50 0.28 45
IV.CDRU.HNZ. 2021-12-16T22:18:26.92 0.3 undecidable manual P 201 36.741 50 -0.26 69
IV.CAFE.HHZ. 2021-12-16T22:18:26.36 0.3 undecidable manual P 324 31.4463 50 -0.01 73
IX.SSB3.HHE.02 2021-12-16T22:18:26.99 0.3 undecidable manual P 328 36.4413 50 -0.14 70
IX.PGN3.HHN.02 2021-12-16T22:18:26.72 0.6 undecidable manual P 131 38.0286 50 -0.65 41
IX.LIO3.HHE. 2021-12-16T22:18:25.07 0.3 undecidable manual P 295 25.752 109 -0.21 71
IX.SALI.HNE.01 2021-12-16T22:18:25.74 0.3 undecidable manual P 302 27.5502 108 0.13 72
IV.SNAL.HHZ. 2021-12-16T22:18:25.17 0.1 undecidable manual P 304 25.1526 109 0 99
IV.SGO.HNN. 2021-12-16T22:18:25.79 0.3 undecidable manual P 206 29.4483 107 -0.19 71
IX.SNR3.EHZ. 2021-12-16T22:18:25.22 0.3 undecidable manual P 253 23.4543 111 0.37 69
IX.RDM3.HHZ.02 2021-12-16T22:18:24.90 0.6 undecidable manual S 38 10.6782 130 0.26 48
IV.MCRV.HHZ. 2021-12-16T22:18:24.67 0.3 undecidable manual P 266 24.4533 110 -0.36 69
IV.MRLC.HHZ. 2021-12-16T22:18:23.20 0.6 undecidable manual S 152 5.3946 149 -0.23 49
IX.SCL3.EHZ.02 2021-12-16T22:18:23.09 0.3 undecidable manual P 159 12.3765 126 0.22 72
IX.RDM3.HHZ.02 2021-12-16T22:18:22.55 0.1 undecidable manual P 38 10.6782 130 -0.05 100
IX.VDS3.HNN.01 2021-12-16T22:18:22.24 0.3 undecidable manual P 202 6.993 142 0.15 74
IV.MRLC.HHZ. 2021-12-16T22:18:21.76 0.1 positive manual P 152 5.3946 149 -0.15 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MRLC.HNE. ML:1.6 0.0006565000000000001 0.3 AML other m 2021-12-16T22:18:24.23
IV.MRLC.HHE. ML:1.9 0.001390709 0.2944 AML other m 2021-12-16T22:18:24.23
IV.MRLC.HNN. ML:1.8 0.0010625 0.34 AML other m 2021-12-16T22:18:24.72
IV.MRLC.HHN. ML:2.1 0.0022199999999999998 0.34 AML other m 2021-12-16T22:18:24.72
IX.SCL3.HNE.01 ML:1.6 0.000496 1.84 AML other m 2021-12-16T22:18:26.01
IX.SCL3.EHE.02 ML:1.6 0.0004756832 1.8464 AML other m 2021-12-16T22:18:26.01
IX.SCL3.HNN.01 ML:1.9 0.0009386683 0.3712 AML other m 2021-12-16T22:18:30.76
IX.SCL3.EHN.02 ML:1.8 0.0008340043500000001 0.3584 AML other m 2021-12-16T22:18:30.76
IX.SNR3.EHN.02 ML:1.8 0.00037185055 0.2816 AML other m 2021-12-16T22:18:31.01
IV.MCRV.HHE. ML:1.4 0.00015884999999999999 1.66 AML other m 2021-12-16T22:18:31.91
IX.SNR3.HNN.01 ML:1.8 0.00036360905 0.2816 AML other m 2021-12-16T22:18:31.58
IV.SNAL.HNE. ML:1.3 0.00011135000000000001 0.42 AML other m 2021-12-16T22:18:32.11
IV.MCRV.HHN. ML:1.4 0.0001668148 0.4736 AML other m 2021-12-16T22:18:32.58
IX.SNR3.HNE.01 ML:1.6 0.00025534565 0.384 AML other m 2021-12-16T22:18:33.54
IX.SNR3.EHE.02 ML:1.6 0.00026191745 0.3712 AML other m 2021-12-16T22:18:33.54
IV.SNAL.HHN. ML:1.6 0.0002125 0.46 AML other m 2021-12-16T22:18:37.40
IV.SNAL.HHE. ML:1.3 0.00012340000000000002 0.88 AML other m 2021-12-16T22:18:41.73
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