Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 18-02-2021 and time 13:34:05 (Italy) in region 6 km NW Castelluccio Superiore (PZ)

A magnitude ML 1.7 earthquake occured in region: 6 km NW Castelluccio Superiore (PZ), on

  • 18-02-2021 12:34:05 (UTC)
  • 18-02-2021 13:34:05 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.0440, 15.9280 at 10 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
Castelluccio Superiore PZ 6 824 824
Castelluccio Inferiore PZ 6 2131 2955
Lauria PZ 8 12919 15874
Latronico PZ 9 4556 20430
Laino Borgo CS 11 1921 22351
Nemoli PZ 11 1495 23846
Trecchina PZ 13 2316 26162
Laino Castello CS 13 848 27010
Rotonda PZ 14 3494 30504
Castelsaraceno PZ 15 1384 31888
Rivello PZ 15 2767 34655
Episcopia PZ 15 1434 36089
Aieta CS 16 823 36912
Viggianello PZ 16 3025 39937
Lagonegro PZ 17 5584 45521
Carbone PZ 18 638 46159
Mormanno CS 18 3027 49186
Maratea PZ 18 5139 54325
San Severino Lucano PZ 19 1563 55888
Tortora CS 19 6187 62075
Papasidero CS 19 734 62809

Municipalities with at least 50000 inhabitants

An earthquake occurred to
67 Km S of Potenza (67122 inhabitants)
88 Km NW of Cosenza (67546 inhabitants)
90 Km SW of Matera (60436 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 2021-02-18
12:34:05		 40.0443 15.9277 10 2021-07-12
16:55:03		 Bollettino Sismico Italiano INGV 88375251
Reviewed
Rev100 		ML 1.7 2021-02-18
12:34:05		 40.0448 15.9273 10 2021-02-18
12:40:52		 Sala Sismica INGV-Roma 87275521
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-18 12:34:05 ± 0.08
Latitude 40.0443 ± 0.0036
Longitude 15.9277 ± 0.0082
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 88375251

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 654
Semi-minor axis of confidence ellipse (meter) 168
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 83
Circular confidence region, given by single value of horizontal uncertainty (meter) 650.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 109
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 18
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.78151
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 88375251
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-03-22 11:30:02

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 87275521
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-18 12:40:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
HL.VLS.HHZ. 2021-02-18T12:35:54.48 3.0 undecidable manual Sg 9.37 0
CR.STON.BHZ. 2021-02-18T12:35:30.12 3.0 undecidable manual Sn 1.15 0
IV.GIUL.HHZ. 2021-02-18T12:35:29.79 3.0 undecidable manual Sg 13.48 0
IT.RMVT.HGZ. 2021-02-18T12:35:03.39 3.0 undecidable manual Pg 10.01 0
IV.RMP.HHZ. 2021-02-18T12:35:00.87 3.0 negative manual Pg 10.48 0
OT.OT13.EHZ. 2021-02-18T12:34:57.23 3.0 undecidable manual Sn -1.69 0
IV.ACATE.EHZ. 2021-02-18T12:34:47.73 3.0 positive manual Pn -1.06 0
IV.CMPR.HHZ. 2021-02-18T12:34:25.60 0.6 undecidable manual S 300 60.9945 50 0.66 40
IV.CET2.HHZ. 2021-02-18T12:34:23.71 0.6 undecidable manual S 178 57.1983 50 -0.22 45
IV.CELI.HNZ. 2021-02-18T12:34:21.67 0.6 undecidable manual P 145 86.7465 50 0.83 35
IV.MCEL.HHZ. 2021-02-18T12:34:17.43 0.6 undecidable manual S 341 32.9448 50 0 49
IV.MGR.HHZ. 2021-02-18T12:34:17.34 0.6 undecidable manual S 288 33.4443 50 -0.22 47
IV.CET2.HHZ. 2021-02-18T12:34:16.48 0.1 undecidable manual P 178 57.1983 50 0.19 91
IV.CMPR.HHZ. 2021-02-18T12:34:16.68 0.3 undecidable manual P 300 60.9945 50 -0.2 67
IV.SCHR.EHZ. 2021-02-18T12:34:13.77 0.6 undecidable manual S 36 21.2676 114 -0.19 48
IV.MGR.HHZ. 2021-02-18T12:34:12.37 0.3 undecidable manual P 288 33.4443 50 -0.25 70
IV.MMN.HHZ. 2021-02-18T12:34:12.88 0.6 undecidable manual S 163 17.871 118 0 50
IV.MCEL.HHZ. 2021-02-18T12:34:12.29 0.3 undecidable manual P 341 32.9448 50 -0.25 70
IV.GRIS.HNE. 2021-02-18T12:34:12.62 0.3 undecidable manual P 191 34.3434 50 -0.14 72
IV.SIRI.HHZ. 2021-02-18T12:34:12.45 0.6 undecidable manual S 342 16.0728 121 0.09 50
MN.CUC.HHZ. 2021-02-18T12:34:10.68 0.6 undecidable manual S 240 11.0778 131 -0.25 49
IV.SCHR.EHZ. 2021-02-18T12:34:10.37 0.1 positive manual P 36 21.2676 114 -0.17 97
IV.MMN.HHZ. 2021-02-18T12:34:09.84 0.3 undecidable manual P 163 17.871 118 -0.08 75
IV.SIRI.HHZ. 2021-02-18T12:34:09.99 0.1 positive manual P 342 16.0728 121 0.37 94
MN.CUC.HHZ. 2021-02-18T12:34:08.90 0.1 positive manual P 240 11.0778 131 0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.CUC.HNN. ML:1.5 0.0004215 1.56 AML other m 2021-02-18T12:34:11.01
MN.CUC.HHN. ML:1.5 0.00041999999999999996 0.62 AML other m 2021-02-18T12:34:11.01
MN.CUC.HNE. ML:1.6 0.00046499999999999997 0.5 AML other m 2021-02-18T12:34:11.45
MN.CUC.HHE. ML:1.6 0.0004395 0.34 AML other m 2021-02-18T12:34:11.44
IV.MMN.HHE. ML:1.9 0.0006625 0.32 AML other m 2021-02-18T12:34:13.69
IV.SIRI.HNN. ML:1.8 0.000615 0.62 AML other m 2021-02-18T12:34:13.55
IV.SIRI.HHN. ML:1.8 0.0006274999999999999 0.64 AML other m 2021-02-18T12:34:13.54
IV.MMN.HHN. ML:2.0 0.000826 1.74 AML other m 2021-02-18T12:34:13.90
IV.SCHR.EHE. ML:1.5 0.0002 1.48 AML other m 2021-02-18T12:34:13.20
IV.SCHR.EHN. ML:1.7 0.0003325 1.84 AML other m 2021-02-18T12:34:13.03
IV.SIRI.HNE. ML:1.8 0.000619 1.52 AML other m 2021-02-18T12:34:14.17
IV.SIRI.HHE. ML:1.8 0.000632 1.52 AML other m 2021-02-18T12:34:14.17
IV.MGR.HHE. ML:1.6 0.000155 0.28 AML other m 2021-02-18T12:34:18.32
IV.MGR.HHN. ML:1.5 0.000152 0.24 AML other m 2021-02-18T12:34:18.46
IV.MCEL.HHE. ML:1.4 0.0001125 1.36 AML other m 2021-02-18T12:34:18.10
IV.MCEL.HHN. ML:1.4 0.0001109 0.14 AML other m 2021-02-18T12:34:18.73
IV.MCEL.HNE. ML:1.9 0.000359 1.08 AML other m 2021-02-18T12:34:19.74
IV.MCEL.HNN. ML:2.0 0.0004115 0.28 AML other m 2021-02-18T12:34:19.21
IV.CET2.HHN. ML:1.8 0.000143 0.32 AML other m 2021-02-18T12:34:25.09
IV.CET2.HHE. ML:1.5 0.00007055000000000001 0.66 AML other m 2021-02-18T12:34:26.56
IV.CMPR.HHE. ML:1.2 0.0000276 0.38 AML other m 2021-02-18T12:34:27.22
IV.CMPR.HHN. ML:1.1 0.000024149999999999997 0.28 AML other m 2021-02-18T12:34:27.03
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