Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 27-04-2021 and time 18:50:44 (Italy) in region 8 km NE Lauria (PZ)

A magnitude ML 1.5 earthquake occured in region: 8 km NE Lauria (PZ), on

  • 27-04-2021 16:50:44 (UTC)
  • 27-04-2021 18:50:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.1160, 15.8800 at 13 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 8 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
Castelluccio Superiore PZ 14 824 35907
Castelluccio Inferiore PZ 15 2131 38038
Sarconi PZ 15 1404 39442
Carbone PZ 18 638 40080
Spinoso PZ 18 1462 41542
Grumento Nova PZ 19 1700 43242
Maratea PZ 19 5139 48381
San Chirico Raparo PZ 19 1084 49465
Episcopia PZ 19 1434 50899
Laino Borgo CS 20 1921 52820
San Martino d'Agri PZ 20 801 53621

Municipalities with at least 50000 inhabitants

An earthquake occurred to
59 Km S of Potenza (67122 inhabitants)
87 Km SW of Matera (60436 inhabitants)
94 Km SE of Battipaglia (50786 inhabitants)
97 Km NW of Cosenza (67546 inhabitants)
98 Km SW of Altamura (70396 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 1.5 2021-04-27
16:50:44		 40.1162 15.8798 13 2021-07-12
16:55:10		 Bollettino Sismico Italiano INGV 89840261
Reviewed
Rev100 		ML 1.6 2021-04-27
16:50:44		 40.1152 15.8877 14 2021-04-27
17:00:57		 Sala Sismica INGV-Roma 89532341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-27 16:50:44 ± 0.07
Latitude 40.1162 ± 0.0036
Longitude 15.8798 ± 0.0047
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 89840261

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 422
Semi-minor axis of confidence ellipse (meter) 232
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 250
Circular confidence region, given by single value of horizontal uncertainty (meter) 420.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 73
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.06655
Epicentral distance of station farthest from the epicenter (degree) 0.58996
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 89532341
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-27 17:00:57

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 89840261
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-05-12 00:21:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GRIS.HNE. 2021-04-27T16:50:58.56 0.3 undecidable manual S 183 41.7249 94 0.19 71
IV.SLCN.HHZ. 2021-04-27T16:50:57.20 0.3 undecidable manual S 326 36.8298 95 0.12 72
IV.CET2.HHZ. 2021-04-27T16:50:56.53 0.6 undecidable manual P 174 65.49 92 0.26 45
IV.CRAC.EHN. 2021-04-27T16:50:55.06 0.3 undecidable manual P 58 55.4001 93 0.34 67
IX.SRN3.HNE.02 2021-04-27T16:50:54.21 0.6 undecidable manual P 319 54.4011 93 -0.35 44
IV.MGR.HHZ. 2021-04-27T16:50:54.40 0.3 undecidable manual S 275 27.75 97 -0.26 71
IV.PTRP.HHZ. 2021-04-27T16:50:54.02 1.0 undecidable manual P 19 47.5191 93 0.52 22
IV.MCEL.HHZ. 2021-04-27T16:50:53.70 0.3 undecidable manual S 344 24.0537 99 0.02 75
IV.SALB.HHZ. 2021-04-27T16:50:53.25 0.3 undecidable manual P 124 47.619 93 -0.28 68
IV.GRIS.HNE. 2021-04-27T16:50:52.75 0.1 undecidable manual P 183 41.7249 94 0.14 96
IV.SCHR.EHZ. 2021-04-27T16:50:52.00 0.3 undecidable manual S 61 18.9699 105 -0.35 71
MN.CUC.HHZ. 2021-04-27T16:50:51.12 0.3 undecidable manual S 202 14.6742 115 -0.14 75
IV.SLCN.HHZ. 2021-04-27T16:50:51.80 0.1 undecidable manual P 326 36.8298 95 -0.07 97
IV.MGR.HHZ. 2021-04-27T16:50:50.33 0.1 undecidable manual P 275 27.75 97 -0.14 97
IV.SIRI.HHZ. 2021-04-27T16:50:50.00 0.3 undecidable manual S 352 7.3815 142 0.25 73
IV.MCEL.HHZ. 2021-04-27T16:50:49.76 0.1 undecidable manual P 344 24.0537 99 -0.14 98
MN.CUC.HHZ. 2021-04-27T16:50:48.70 0.1 undecidable manual P 202 14.6742 115 0.19 99
IV.SCHR.EHZ. 2021-04-27T16:50:48.95 0.1 positive manual P 61 18.9699 105 -0.19 98
IV.SIRI.HHZ. 2021-04-27T16:50:47.80 0.1 negative manual P 352 7.3815 142 0.16 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SIRI.HHE. ML:1.8 0.0007945 0.22 AML other m 2021-04-27T16:50:50.11
IV.SIRI.HNE. ML:1.8 0.0007735 0.24 AML other m 2021-04-27T16:50:50.11
IV.SIRI.HHN. ML:1.8 0.0007235000000000001 0.2 AML other m 2021-04-27T16:50:50.34
IV.SIRI.HNN. ML:1.7 0.0006879999999999999 0.2 AML other m 2021-04-27T16:50:50.34
MN.CUC.HHN. ML:1.6 0.000316 0.28 AML other m 2021-04-27T16:50:51.42
MN.CUC.HNN. ML:1.6 0.000332 0.28 AML other m 2021-04-27T16:50:51.43
MN.CUC.HHE. ML:1.4 0.00021087044999999998 0.32 AML other m 2021-04-27T16:50:51.71
MN.CUC.HNE. ML:1.5 0.0002475 1.2 AML other m 2021-04-27T16:50:51.13
IV.SCHR.EHN. ML:1.4 0.00016249999999999997 0.7 AML other m 2021-04-27T16:50:52.44
IV.SCHR.EHE. ML:1.4 0.000192 0.7 AML other m 2021-04-27T16:50:52.45
IV.MCEL.HHN. ML:1.0 0.000057695535000000006 1.28 AML other m 2021-04-27T16:50:54.28
IV.MGR.HHE. ML:1.6 0.00022499999999999997 0.28 AML other m 2021-04-27T16:50:54.74
IV.MCEL.HHE. ML:1.3 0.0001064 1 AML other m 2021-04-27T16:50:54.49
IV.MCEL.HNN. ML:1.4 0.00013202829999999998 0.4608 AML other m 2021-04-27T16:50:55.37
IV.MCEL.HNE. ML:1.4 0.0001351956 0.2432 AML other m 2021-04-27T16:50:55.16
IV.MGR.HHN. ML:1.6 0.00021100000000000003 0.98 AML other m 2021-04-27T16:50:55.46
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