Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 29-04-2020 and time 22:00:00 (UTC) in region 4 km SW Pietrapertosa (PZ)

A magnitude ML 1.7 earthquake occured in region: 4 km SW Pietrapertosa (PZ), on

  • 29-04-2020 22:00:00 (UTC)
  • 30-04-2020 00:00:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.4990, 16.0270 at 18 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
Pietrapertosa PZ 4 1032 1032
Castelmezzano PZ 4 800 1832
Laurenzana PZ 6 1797 3629
Campomaggiore PZ 9 811 4440
Anzi PZ 9 1696 6136
Albano di Lucania PZ 10 1435 7571
Trivigno PZ 10 678 8249
Accettura MT 11 1856 10105
Corleto Perticara PZ 13 2511 12616
Oliveto Lucano MT 14 450 13066
Brindisi Montagna PZ 14 908 13974
Gorgoglione MT 15 989 14963
Calvello PZ 15 1948 16911
Guardia Perticara PZ 16 552 17463
Tricarico MT 17 5388 22851
Cirigliano MT 17 375 23226
Calciano MT 17 777 24003
Garaguso MT 18 1073 25076
Abriola PZ 18 1531 26607
San Mauro Forte MT 19 1552 28159

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km SE of Potenza (67122 inhabitants)
52 Km W of Matera (60436 inhabitants)
58 Km SW of Altamura (70396 inhabitants)
84 Km S of Andria (100440 inhabitants)
86 Km S of Cerignola (58396 inhabitants)
88 Km SW of Bitonto (55540 inhabitants)
89 Km E of Battipaglia (50786 inhabitants)
92 Km SW of Bisceglie (55422 inhabitants)
92 Km SW of Molfetta (59874 inhabitants)
92 Km SW of Trani (56217 inhabitants)
94 Km S of Barletta (94814 inhabitants)
99 Km SW of Bari (326344 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 2020-04-29
22:00:00		 40.4988 16.0268 18 2020-07-18
21:08:35		 Bollettino Sismico Italiano INGV 78956821
Reviewed
Rev100 		ML 1.8 2020-04-29
21:59:59		 40.5058 16.0305 21 2020-04-29
22:10:43		 Sala Sismica INGV-Roma 78681951
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-29 22:00:00 ± 0.19
Latitude 40.4988 ± 0.0063
Longitude 16.0268 ± 0.0083
Depth (km) 18 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 78956821

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 673
Semi-minor axis of confidence ellipse (meter) 253
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 116
Circular confidence region, given by single value of horizontal uncertainty (meter) 670.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 98
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.66730
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 28
Type of magnitude ML
Reference to an origin 78681951
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-29 22:10:43

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 23
Type of magnitude ML
Reference to an origin 78956821
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-06-06 01:59:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MC2.EHZ. 2020-04-29T22:01:02.08 3.0 undecidable manual Pg 13.21 0
IV.CPGN.EHZ. 2020-04-29T22:01:02.85 3.0 undecidable manual Pn -0.92 0
IV.ROSPO.HHZ. 2020-04-29T22:00:55.99 3.0 undecidable manual Sn 0.37 0
IV.SPS2.HHZ. 2020-04-29T22:00:38.59 3.0 undecidable manual S -0.09 0
IV.PLAC.HHZ. 2020-04-29T22:00:37.75 3.0 undecidable manual P 0
IV.SALB.HHE. 2020-04-29T22:00:22.94 0.6 undecidable manual S 158 74.0703 96 0.43 44
IV.MGR.HHZ. 2020-04-29T22:00:18.10 0.6 undecidable manual S 225 56.5989 98 0.21 47
IV.CRAC.EHE. 2020-04-29T22:00:13.68 1.0 undecidable manual S 111 36.8298 105 0.97 19
IV.MIGL.HHZ. 2020-04-29T22:00:13.10 0.3 undecidable manual S 71 36.8298 105 0.4 70
IV.SIRI.HHZ. 2020-04-29T22:00:13.19 0.3 undecidable manual S 201 37.629 104 0.28 73
IV.SCHR.EHE. 2020-04-29T22:00:12.00 0.3 undecidable manual S 173 33.4443 107 0.15 75
IV.SLCN.HHZ. 2020-04-29T22:00:12.00 0.6 undecidable manual S 250 35.3424 106 -0.34 48
IV.SALB.HHE. 2020-04-29T22:00:12.56 0.6 undecidable manual P 158 74.0703 96 -0.51 43
IX.STN3.HNE.02 2020-04-29T22:00:11.53 0.6 undecidable manual S 276 31.8459 108 0.1 50
IV.PZUN.HHZ. 2020-04-29T22:00:10.60 0.3 undecidable manual S 311 24.6531 115 0.95 58
IV.MGR.HHZ. 2020-04-29T22:00:10.32 0.3 undecidable manual P 225 56.5989 98 -0.09 73
IV.MCEL.HHZ. 2020-04-29T22:00:09.90 0.6 undecidable manual S 225 27.0507 112 -0.34 48
IX.VGG3.HNE.01 2020-04-29T22:00:09.29 0.6 undecidable manual S 211 20.9679 120 0.52 47
IX.PGN3.HHE.02 2020-04-29T22:00:08.85 0.3 undecidable manual S 293 21.0678 120 0.06 78
IV.SIRI.HHZ. 2020-04-29T22:00:07.37 0.3 undecidable manual P 201 37.629 104 -0.17 74
IV.CRAC.EHE. 2020-04-29T22:00:07.56 0.3 undecidable manual P 111 36.8298 105 0.14 74
IV.MIGL.HHZ. 2020-04-29T22:00:07.01 0.1 negative manual P 71 36.8298 105 -0.41 95
IV.SLCN.HHZ. 2020-04-29T22:00:07.09 0.3 undecidable manual P 250 35.3424 106 -0.11 75
IX.STN3.HNE.02 2020-04-29T22:00:06.40 0.3 undecidable manual P 276 31.8459 108 -0.28 73
IV.SCHR.EHE. 2020-04-29T22:00:06.56 0.1 undecidable manual P 173 33.4443 107 -0.36 95
IX.VGG3.HNE.01 2020-04-29T22:00:06.00 0.1 undecidable manual P 211 20.9679 120 0.86 82
IV.PTRP.HHZ. 2020-04-29T22:00:05.44 0.6 undecidable manual S 49 3.8961 166 -0.46 49
IV.MCEL.HHZ. 2020-04-29T22:00:05.77 0.1 negative manual P 225 27.0507 112 -0.22 99
IV.PZUN.HHZ. 2020-04-29T22:00:05.89 0.1 undecidable manual P 311 24.6531 115 0.24 99
IX.PGN3.HHE.02 2020-04-29T22:00:04.90 0.1 undecidable manual P 293 21.0678 120 -0.25 100
IV.PTRP.HHZ. 2020-04-29T22:00:02.94 0.1 positive manual P 49 3.8961 166 -0.55 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PTRP.HHE. ML:1.5 0.00027304069999999997 0.2176 AML other m 2020-04-29T22:00:06.09
IV.PTRP.HHN. ML:1.6 0.00039379375 0.3584 AML other m 2020-04-29T22:00:06.89
IV.MCEL.HHN. ML:1.8 0.0003019437 0.3072 AML other m 2020-04-29T22:00:10.64
IV.MCEL.HNN. ML:1.8 0.00029712870000000004 0.32 AML other m 2020-04-29T22:00:10.64
IV.MCEL.HNE. ML:1.8 0.00027096434999999996 0.2688 AML other m 2020-04-29T22:00:10.87
IV.MCEL.HHE. ML:1.8 0.0002790298 0.2432 AML other m 2020-04-29T22:00:10.73
IV.PZUN.HNN. ML:1.4 0.000133622525 0.5376 AML other m 2020-04-29T22:00:11.22
IV.PZUN.HHE. ML:1.4 0.000134 0.9 AML other m 2020-04-29T22:00:12.76
IV.PZUN.HNE. ML:1.5 0.00016175785000000002 0.9728 AML other m 2020-04-29T22:00:13.22
IV.MIGL.HHE. ML:2.1 0.000485628715 0.1536 AML other m 2020-04-29T22:00:13.34
IV.SIRI.HHN. ML:1.6 0.00014820220000000002 0.1792 AML other m 2020-04-29T22:00:13.43
IV.SIRI.HNN. ML:1.6 0.000148 0.42 AML other m 2020-04-29T22:00:13.35
IV.MIGL.HHN. ML:2.0 0.000338086475 0.1792 AML other m 2020-04-29T22:00:13.68
IV.SLCN.HHN. ML:1.5 0.00011780105 0.2432 AML other m 2020-04-29T22:00:14.09
IV.SLCN.HNN. ML:2.0 0.00032739905000000004 0.9984 AML other m 2020-04-29T22:00:14.09
IV.SLCN.HHE. ML:1.8 0.00020420515 0.2688 AML other m 2020-04-29T22:00:14.39
IV.SLCN.HNE. ML:1.8 0.00024875375 0.6144 AML other m 2020-04-29T22:00:16.20
IV.SIRI.HHE. ML:1.5 0.00011080000000000001 1.58 AML other m 2020-04-29T22:00:17.00
IV.SIRI.HNE. ML:1.6 0.00012565 1.58 AML other m 2020-04-29T22:00:17.01
IV.MGR.HHE. ML:1.2 0.000030477175 0.256 AML other m 2020-04-29T22:00:19.65
IV.MGR.HHN. ML:1.2 0.000036805135 0.1792 AML other m 2020-04-29T22:00:19.93
IV.MGR.HNN. ML:2.4 0.0005398922499999999 1.9968 AML other m 2020-04-29T22:00:20.58
IV.MGR.HNE. ML:2.3 0.0004429602 0.64 AML other m 2020-04-29T22:00:20.58
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