Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 21-02-2021 and time 05:00:43 (Italy) in region 4 km SW Castelsaraceno (PZ)

A magnitude ML 1.4 earthquake occured in region: 4 km SW Castelsaraceno (PZ), on

  • 21-02-2021 04:00:43 (UTC)
  • 21-02-2021 05:00:43 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.1320, 15.9650 at 7 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
Castelsaraceno PZ 5 1384 1384
Latronico PZ 6 4556 5940
Carbone PZ 11 638 6578
San Chirico Raparo PZ 12 1084 7662
Episcopia PZ 13 1434 9096
Castelluccio Superiore PZ 14 824 9920
San Martino d'Agri PZ 14 801 10721
Castelluccio Inferiore PZ 14 2131 12852
Lauria PZ 14 12919 25771
Sarconi PZ 15 1404 27175
Moliterno PZ 15 4062 31237
Spinoso PZ 15 1462 32699
Calvera PZ 15 387 33086
Teana PZ 16 613 33699
Nemoli PZ 16 1495 35194
Lagonegro PZ 17 5584 40778
Fardella PZ 17 627 41405
Grumento Nova PZ 18 1700 43105
Rivello PZ 19 2767 45872
Montemurro PZ 19 1235 47107
Trecchina PZ 20 2316 49423
Laino Borgo CS 20 1921 51344
San Severino Lucano PZ 20 1563 52907
Castronuovo di Sant'Andrea PZ 20 1067 53974

Municipalities with at least 50000 inhabitants

An earthquake occurred to
58 Km S of Potenza (67122 inhabitants)
80 Km SW of Matera (60436 inhabitants)
92 Km SW of Altamura (70396 inhabitants)
97 Km N of Cosenza (67546 inhabitants)
99 Km SE of Battipaglia (50786 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 1.4 2021-02-21
04:00:43		 40.1323 15.9648 7 2021-07-12
16:55:00		 Bollettino Sismico Italiano INGV 87624081
Reviewed
Rev100 		ML 1.5 2021-02-21
04:00:43		 40.1117 16.0437 11 2021-02-21
04:12:02		 Sala Sismica INGV-Roma 87350111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-21 04:00:43 ± 0.09
Latitude 40.1323 ± 0.0054
Longitude 15.9648 ± 0.0082
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 87624081

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 667
Semi-minor axis of confidence ellipse (meter) 137
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 287
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) 73
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.08903
Epicentral distance of station farthest from the epicenter (degree) 0.65381
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 87624081
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-03-22 17:17:51

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 87350111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-21 04:12:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CMPR.HHZ. 2021-02-21T04:01:03.60 0.6 undecidable manual S 290 59.6958 50 0.28 44
IV.ACER.HHZ. 2021-02-21T04:00:57.09 0.3 undecidable manual P 359 72.5718 50 -0.04 67
IV.CET2.HHZ. 2021-02-21T04:00:56.86 0.3 undecidable manual P 181 66.9774 50 0.6 59
IV.CMPR.HHZ. 2021-02-21T04:00:54.75 0.3 undecidable manual P 290 59.6958 50 -0.39 64
IV.CRAC.EHN. 2021-02-21T04:00:53.62 0.3 undecidable manual P 55 48.4182 50 0.22 68
IV.BULG.HHN. 2021-02-21T04:00:53.63 0.1 undecidable manual P 263 50.2164 50 -0.04 93
IX.PGN3.HHN.02 2021-02-21T04:00:53.52 0.3 undecidable manual P 344 50.8158 50 -0.25 67
IV.GRIS.HNE. 2021-02-21T04:00:52.47 0.6 undecidable manual P 192 44.5221 50 -0.32 45
IV.ORI.HHN. 2021-02-21T04:00:52.67 0.3 undecidable manual P 102 42.2244 50 0.23 68
IV.PTRP.HHZ. 2021-02-21T04:00:52.74 0.3 undecidable manual P 11 43.9227 50 0.03 71
IV.MMN.HHE. 2021-02-21T04:00:52.96 0.6 undecidable manual S 175 26.8509 104 -0.63 42
IV.SLCN.HNZ. 2021-02-21T04:00:51.69 0.3 undecidable manual P 316 40.1265 50 -0.43 66
IV.MMN.HHE. 2021-02-21T04:00:50.08 0.3 undecidable manual P 175 26.8509 104 0.55 65
MN.CUC.HHZ. 2021-02-21T04:00:50.49 0.6 undecidable manual S 220 19.9689 109 -0.79 40
IV.MGR.HHZ. 2021-02-21T04:00:50.95 0.3 undecidable manual P 271 34.9428 101 -0.15 70
IV.MCEL.HHZ. 2021-02-21T04:00:49.26 0.1 positive manual P 327 25.4523 105 0.01 98
MN.CUC.HHZ. 2021-02-21T04:00:48.46 0.3 undecidable manual P 220 19.9689 109 0.26 71
IV.SCHR.EHZ. 2021-02-21T04:00:48.19 0.6 undecidable manual S 52 11.9769 120 -0.57 44
IV.SIRI.HHZ. 2021-02-21T04:00:48.57 0.6 undecidable manual S 304 9.879 125 0.41 46
IV.SCHR.EHZ. 2021-02-21T04:00:46.70 0.1 undecidable manual P 52 11.9769 120 -0.04 100
IV.SIRI.HHZ. 2021-02-21T04:00:46.76 0.1 undecidable manual P 304 9.879 125 0.37 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SCHR.EHN. ML:1.4 0.0003594035 0.2592 AML other m 2021-02-21T04:00:48.60
MN.CUC.HNE. ML:1.3 0.000147030625 0.5824 AML other m 2021-02-21T04:00:49.70
IV.SCHR.EHE. ML:1.6 0.00046 0.26 AML other m 2021-02-21T04:00:49.70
IV.MGR.HNE. ML:1.6 0.0001535459 0.6496 AML other m 2021-02-21T04:00:51.10
IV.MGR.HNN. ML:1.7 0.00021040694999999998 0.8288 AML other m 2021-02-21T04:00:51.24
MN.CUC.HHE. ML:1.2 0.000132 0.62 AML other m 2021-02-21T04:00:51.39
IV.SIRI.HHN. ML:1.6 0.0006525 0.28 AML other m 2021-02-21T04:00:51.83
IV.SIRI.HNN. ML:1.6 0.0006435 0.3 AML other m 2021-02-21T04:00:51.84
IV.SIRI.HHE. ML:1.6 0.000687 1.74 AML other m 2021-02-21T04:00:53.10
IV.SIRI.HNE. ML:1.6 0.0006739999999999999 1.76 AML other m 2021-02-21T04:00:53.10
MN.CUC.HHN. ML:1.2 0.0001233 0.62 AML other m 2021-02-21T04:00:53.90
IV.MCEL.HHE. ML:1.0 0.00006677819999999999 0.2208 AML other m 2021-02-21T04:00:54.59
IV.MCEL.HHN. ML:1.0 0.00006214999999999999 0.42 AML other m 2021-02-21T04:00:55.33
IV.MCEL.HNN. ML:1.4 0.00015309529999999998 0.4192 AML other m 2021-02-21T04:00:55.84
MN.CUC.HNN. ML:1.2 0.0001349059 0.56 AML other m 2021-02-21T04:00:55.68
IV.MCEL.HNE. ML:1.4 0.00015121550000000002 0.4992 AML other m 2021-02-21T04:00:56.58
IV.MGR.HHN. ML:1.3 0.00008060000000000001 0.32 AML other m 2021-02-21T04:00:59.81
IV.MGR.HHE. ML:1.2 0.00007199999999999999 0.28 AML other m 2021-02-21T04:01:00.79
IV.ACER.HNE. ML:1.9 0.0001302077 0.88 AML other m 2021-02-21T04:01:01.42
IV.ACER.HHN. ML:1.3 0.00003227281 0.4768 AML other m 2021-02-21T04:01:11.18
IV.ACER.HHE. ML:1.3 0.000036010045 0.7392 AML other m 2021-02-21T04:01:13.77
IV.ACER.HNN. ML:2.0 0.00017203394999999998 0.9984 AML other m 2021-02-21T04:01:20.17
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