Earthquake with magnitude of ML 1.7 on date 29-01-2021 and time 19:16:29 (Italy) in region 1 km SW Sant'Arcangelo (PZ)

A magnitude ML 1.7 earthquake occured in region: 1 km SW Sant'Arcangelo (PZ), on

  • 29-01-2021 18:16:29 (UTC)
  • 29-01-2021 19:16:29 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.24, 16.269 at 24 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Sant'Arcangelo PZ 1 6533 6533
Roccanova PZ 6 1543 8076
Aliano MT 9 1008 9084
Castronuovo di Sant'Andrea PZ 9 1067 10151
Missanello PZ 10 566 10717
Senise PZ 11 7115 17832
Gallicchio PZ 12 862 18694
Chiaromonte PZ 14 1965 20659
Colobraro MT 14 1266 21925
Calvera PZ 15 387 22312
Teana PZ 16 613 22925
Fardella PZ 16 627 23552
Valsinni MT 17 1544 25096
San Chirico Raparo PZ 17 1084 26180
San Giorgio Lucano MT 17 1217 27397
Noepoli PZ 18 878 28275
Tursi MT 18 5037 33312
Francavilla in Sinni PZ 18 4215 37527
San Martino d'Agri PZ 18 801 38328
Stigliano MT 19 4361 42689
Carbone PZ 19 638 43327
Armento PZ 19 631 43958
Cirigliano MT 19 375 44333
Guardia Perticara PZ 20 552 44885

Municipalities with at least 50000 inhabitants

An earthquake occurred to
55 Km SW of Matera (60436 inhabitants)
59 Km SE of Potenza (67122 inhabitants)
70 Km SW of Altamura (70396 inhabitants)
86 Km W of Taranto (201100 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 1.7 2021-01-29
18:16:29
40.2397 16.2688 24 2021-07-12
16:54:59
Bollettino Sismico Italiano INGV 87183821
Reviewed
Rev100
ML 1.9 2021-01-29
18:16:29
40.2512 16.2742 25 2021-01-29
18:23:31
Sala Sismica INGV-Roma 86694711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-29 18:16:29 ± 0.11
Latitude 40.2397 ± 0.0054
Longitude 16.2688 ± 0.0047
Depth (km) 24 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 87183821

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 627
Semi-minor axis of confidence ellipse (meter) 100
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 332
Circular confidence region, given by single value of horizontal uncertainty (meter) 630
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 85
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 27
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) 0.15288
Epicentral distance of station farthest from the epicenter (degree) 0.81658
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 87183821
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-03-09 11:42:19

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 19
Type of magnitude ML
Reference to an origin 86694711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-29 18:23:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MGR.HNZ. 2021-01-29T18:16:49.29 0.6 undecidable manual S 260 0.5558 105 0.1 47
GE.MATE.HHZ. 2021-01-29T18:16:48.71 0.3 undecidable manual S 39 0.5261 106 0.35 67
MN.CUC.HNZ. 2021-01-29T18:16:46.23 0.6 undecidable manual S 235 0.4245 110 0.74 41
IV.NOCI.HHZ. 2021-01-29T18:16:45.16 0.6 undecidable manual P 48 0.8166 100 -0.2 44
IV.MCEL.HHZ. 2021-01-29T18:16:44.01 0.3 undecidable manual S 284 0.366 114 0.13 72
OT.MASS.HHE. 2021-01-29T18:16:44.58 0.3 undecidable manual P 59 0.7734 100 -0.05 68
IV.MIGL.HHZ. 2021-01-29T18:16:44.19 0.3 undecidable manual S 20 0.3876 113 -0.27 71
IV.AMUR.HHZ. 2021-01-29T18:16:44.14 0.3 undecidable manual P 21 0.7141 101 0.5 62
IX.VGG3.HNN.01 2021-01-29T18:16:42.16 0.3 undecidable manual S 289 0.2968 120 0.12 73
IV.SIRI.HHZ. 2021-01-29T18:16:42.42 0.3 undecidable manual S 259 0.3121 118 -0.01 75
IV.ACER.HNZ. 2021-01-29T18:16:41.90 0.3 undecidable manual P 336 0.5998 104 0.16 69
IV.ORI.HHZ. 2021-01-29T18:16:40.60 0.6 undecidable manual S 144 0.2338 127 0.11 51
IV.SLCN.HHZ. 2021-01-29T18:16:40.33 0.3 undecidable manual P 287 0.5072 107 0.12 71
IV.MGR.HNZ. 2021-01-29T18:16:40.67 0.3 undecidable manual P 260 0.5558 105 -0.32 67
GE.MATE.HHZ. 2021-01-29T18:16:40.44 0.3 undecidable manual P 39 0.5261 106 -0.08 71
IV.MMN.HHN. 2021-01-29T18:16:39.03 0.3 undecidable manual P 212 0.4083 111 0.43 68
IV.CRAC.EHZ. 2021-01-29T18:16:39.50 0.3 undecidable manual S 42 0.1898 134 0 77
IV.SCHR.EHZ. 2021-01-29T18:16:38.68 0.3 undecidable manual S 255 0.1529 141 -0.07 77
MN.CUC.HNZ. 2021-01-29T18:16:38.79 0.3 undecidable manual P 235 0.4245 110 -0.07 72
IV.MIGL.HHZ. 2021-01-29T18:16:37.74 0.1 undecidable manual P 20 0.3876 113 -0.52 89
IV.PTRP.HHZ. 2021-01-29T18:16:37.63 0.3 undecidable manual P 331 0.3229 117 0.37 69
IV.MCEL.HHZ. 2021-01-29T18:16:37.67 0.3 undecidable manual P 284 0.366 114 -0.26 71
IV.SIRI.HHZ. 2021-01-29T18:16:36.72 0.3 undecidable manual P 259 0.3121 118 -0.38 70
IX.VGG3.HNN.01 2021-01-29T18:16:36.84 0.3 undecidable manual P 289 0.2968 120 -0.03 76
IV.ORI.HHZ. 2021-01-29T18:16:36.08 0.3 undecidable manual P 144 0.2338 127 0.1 76
IV.CRAC.EHZ. 2021-01-29T18:16:35.21 0.1 positive manual P 42 0.1898 134 -0.19 99
IV.SCHR.EHZ. 2021-01-29T18:16:34.80 0.1 undecidable manual P 255 0.1529 141 -0.17 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SCHR.EHE. ML:1.4 0.0001445478 0.4992 AML other m 2021-01-29T18:16:38.72
IV.CRAC.EHE. ML:1.9 0.00035557245 1.4336 AML other m 2021-01-29T18:16:39.56
IV.SCHR.EHN. ML:1.3 0.000100781925 0.1408 AML other m 2021-01-29T18:16:38.88
IV.CRAC.EHN. ML:2.1 0.000581644 0.4864 AML other m 2021-01-29T18:16:39.86
IV.ORI.HHN. ML:1.6 0.0001544423 2.5088 AML other m 2021-01-29T18:16:39.96
IV.ORI.HHE. ML:1.7 0.00019062765 1.024 AML other m 2021-01-29T18:16:40.52
IV.SIRI.HHN. ML:1.6 0.00013442835 0.5632 AML other m 2021-01-29T18:16:42.82
IV.SIRI.HNN. ML:1.6 0.0001363485 0.5632 AML other m 2021-01-29T18:16:42.55
IV.SIRI.HNE. ML:1.5 0.000102714665 0.2176 AML other m 2021-01-29T18:16:43.01
IV.SIRI.HHE. ML:1.5 0.000107410325 0.2176 AML other m 2021-01-29T18:16:43.01
IV.MCEL.HHN. ML:1.6 0.000106092955 2.4064 AML other m 2021-01-29T18:16:43.14
IV.MIGL.HHN. ML:1.8 0.00016311015 1.984 AML other m 2021-01-29T18:16:44.54
IV.MCEL.HHE. ML:1.6 0.0001241441 0.256 AML other m 2021-01-29T18:16:44.26
IV.MIGL.HHE. ML:2 0.00025006495 0.32 AML other m 2021-01-29T18:16:44.43
IV.NOCI.HHN. ML:2.1 0.000129 0.2 AML other m 2021-01-29T18:16:59.87
IV.NOCI.HHE. ML:1.9 9.147603E-5 0.32 AML other m 2021-01-29T18:16:59.67
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