Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 28-04-2021 and time 17:01:51 (Italy) in region 9 km NE Lauria (PZ)

A magnitude ML 1.7 earthquake occured in region: 9 km NE Lauria (PZ), on

  • 28-04-2021 15:01:51 (UTC)
  • 28-04-2021 17:01:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.1210, 15.8770 at 15 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
Lauria PZ 9 12919 12919
Nemoli PZ 9 1495 14414
Lagonegro PZ 10 5584 19998
Castelsaraceno PZ 11 1384 21382
Rivello PZ 11 2767 24149
Latronico PZ 12 4556 28705
Trecchina PZ 13 2316 31021
Moliterno PZ 14 4062 35083
Sarconi PZ 14 1404 36487
Castelluccio Superiore PZ 15 824 37311
Castelluccio Inferiore PZ 15 2131 39442
Spinoso PZ 18 1462 40904
Grumento Nova PZ 18 1700 42604
Carbone PZ 18 638 43242
San Chirico Raparo PZ 19 1084 44326
Maratea PZ 19 5139 49465
Casalbuono SA 20 1194 50659
Episcopia PZ 20 1434 52093
San Martino d'Agri PZ 20 801 52894

Municipalities with at least 50000 inhabitants

An earthquake occurred to
58 Km S of Potenza (67122 inhabitants)
86 Km SW of Matera (60436 inhabitants)
93 Km SE of Battipaglia (50786 inhabitants)
97 Km SW of Altamura (70396 inhabitants)
98 Km NW of Cosenza (67546 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 2021-04-28
15:01:51		 40.1212 15.8768 15 2021-07-12
16:55:14		 Bollettino Sismico Italiano INGV 91084371
Reviewed
Rev100 		ML 1.7 2021-04-28
15:01:51		 40.1198 15.8822 14 2021-04-28
15:12:12		 Sala Sismica INGV-Roma 89558521
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-28 15:01:51 ± 0.1
Latitude 40.1212 ± 0.0045
Longitude 15.8768 ± 0.0059
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 91084371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 527
Semi-minor axis of confidence ellipse (meter) 110
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 273
Circular confidence region, given by single value of horizontal uncertainty (meter) 530.0
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 23
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.64661
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 24
Type of magnitude ML
Reference to an origin 89558521
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-28 15:12:12

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 28
Type of magnitude ML
Reference to an origin 91084371
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-06-14 16:33:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PAOL.HHZ. 2021-04-28T15:02:16.86 3.0 positive manual P 0.64 0
IV.MIGL.HHZ. 2021-04-28T15:02:04.21 0.6 undecidable manual P 41 71.7726 94 0.07 45
IV.CET2.HHZ. 2021-04-28T15:02:03.57 0.6 undecidable manual P 174 66.0894 95 0.31 43
IV.CRAC.EHN. 2021-04-28T15:02:02.07 0.6 undecidable manual P 58 55.4001 96 0.45 43
IV.CDRU.HHZ. 2021-04-28T15:02:02.96 0.3 undecidable manual P 310 63.3921 95 0.11 67
IV.MGR.HHZ. 2021-04-28T15:02:01.60 0.3 undecidable manual S 274 27.4503 106 0.01 73
IV.MMN.HHE. 2021-04-28T15:02:01.74 0.6 undecidable manual S 159 27.3504 106 0.19 47
IX.PGN3.HHN.02 2021-04-28T15:02:01.03 0.6 undecidable manual P 352 50.5161 97 0.16 46
IV.SALB.HHZ. 2021-04-28T15:02:00.14 0.6 undecidable manual P 124 48.2184 97 -0.38 44
IV.CMPR.HHZ. 2021-04-28T15:02:00.85 0.6 undecidable manual P 294 53.3022 96 -0.45 43
IX.SRN3.HNE.02 2021-04-28T15:02:00.97 1.0 undecidable manual P 319 53.8017 96 -0.41 22
IV.MCEL.HHZ. 2021-04-28T15:02:00.81 0.3 undecidable manual S 344 23.4543 110 0.23 71
IV.SCHR.EHZ. 2021-04-28T15:01:59.10 0.3 undecidable manual S 63 18.9699 117 -0.37 68
IV.GRIS.HNE. 2021-04-28T15:01:59.63 0.6 undecidable manual P 183 42.3243 98 0.01 48
IV.SLCN.HHZ. 2021-04-28T15:01:58.34 0.6 undecidable manual P 325 36.2415 100 -0.37 45
MN.CUC.HHZ. 2021-04-28T15:01:58.30 0.3 undecidable manual S 200 15.0738 125 -0.27 72
IV.SIRI.HHZ. 2021-04-28T15:01:57.08 0.3 undecidable manual S 353 6.7932 151 -0.01 76
IV.MGR.HHZ. 2021-04-28T15:01:57.41 0.3 positive manual P 274 27.4503 106 0.03 73
IV.MMN.HHE. 2021-04-28T15:01:57.72 0.3 undecidable manual P 159 27.3504 106 0.36 69
IV.SCHR.EHZ. 2021-04-28T15:01:56.00 0.1 undecidable manual P 63 18.9699 117 -0.16 96
IV.MCEL.HHZ. 2021-04-28T15:01:56.88 0.3 undecidable manual P 344 23.4543 110 0.08 73
MN.CUC.HHZ. 2021-04-28T15:01:55.61 0.3 undecidable manual P 200 15.0738 125 -0.03 76
IV.SIRI.HHZ. 2021-04-28T15:01:54.89 0.1 negative manual P 353 6.7932 151 0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SIRI.HNN. ML:1.9 0.0008782324 0.1664 AML other m 2021-04-28T15:01:57.20
IV.SIRI.HHN. ML:1.9 0.0009160209999999999 0.1792 AML other m 2021-04-28T15:01:57.20
IV.SIRI.HHE. ML:2.0 0.0011327885 0.3072 AML other m 2021-04-28T15:01:57.22
IV.SIRI.HNE. ML:2.0 0.0010915 0.3 AML other m 2021-04-28T15:01:57.23
MN.CUC.HNN. ML:1.7 0.000384 0.3 AML other m 2021-04-28T15:01:58.50
MN.CUC.HHN. ML:1.7 0.0003715576 0.256 AML other m 2021-04-28T15:01:58.50
MN.CUC.HHE. ML:1.6 0.0002858778 0.32 AML other m 2021-04-28T15:01:58.63
MN.CUC.HNE. ML:1.6 0.00028649999999999997 0.38 AML other m 2021-04-28T15:01:58.63
IV.SCHR.EHE. ML:1.9 0.000481 0.28 AML other m 2021-04-28T15:01:59.42
IV.SCHR.EHN. ML:1.8 0.00038179565 0.1408 AML other m 2021-04-28T15:01:59.54
IV.MCEL.HHE. ML:1.5 0.00016558245 0.2176 AML other m 2021-04-28T15:02:01.18
IV.MCEL.HHN. ML:1.3 0.0001151096 0.2432 AML other m 2021-04-28T15:02:01.40
IV.MGR.HNN. ML:1.8 0.00028802280000000003 0.2304 AML other m 2021-04-28T15:02:01.90
IV.MGR.HHN. ML:1.8 0.00032450000000000003 0.3 AML other m 2021-04-28T15:02:02.56
IV.MCEL.HNE. ML:1.8 0.00034020685 0.256 AML other m 2021-04-28T15:02:02.48
IV.MGR.HHE. ML:1.8 0.000311 0.28 AML other m 2021-04-28T15:02:02.68
IV.MGR.HNE. ML:1.9 0.00038917659999999996 0.3072 AML other m 2021-04-28T15:02:02.54
IV.MCEL.HNN. ML:1.7 0.00028396065000000004 1.68 AML other m 2021-04-28T15:02:03.12
IV.SLCN.HNE. ML:1.7 0.00018577505 0.3584 AML other m 2021-04-28T15:02:07.97
IV.SLCN.HHE. ML:1.7 0.00017890025 0.2432 AML other m 2021-04-28T15:02:08.74
IV.SALB.HHN. ML:1.2 0.00004426669 0.2688 AML other m 2021-04-28T15:02:09.15
IV.SLCN.HHN. ML:1.6 0.0001349 0.32 AML other m 2021-04-28T15:02:10.54
IV.SALB.HHE. ML:1.3 0.000052956000000000006 0.256 AML other m 2021-04-28T15:02:11.37
IV.CDRU.HHE. ML:1.4 0.000050917215 0.3712 AML other m 2021-04-28T15:02:13.54
IV.CDRU.HHN. ML:1.0 0.000018655755 1.5008 AML other m 2021-04-28T15:02:16.98
IV.PAOL.HNE. ML:2.4 0.000134279 0.5888 AML other m 2021-04-28T15:02:37.41
IV.PAOL.HHE. ML:1.9 0.00004009381500000001 1.7952 AML other m 2021-04-28T15:02:52.02
IV.PAOL.HNN. ML:2.7 0.00023316894999999999 0.8192 AML other m 2021-04-28T15:02:59.58
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