Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 25-07-2020 and time 22:50:06 (Italy) in region 6 km E Castelluccio Superiore (PZ)

A magnitude ML 1.4 earthquake occured in region: 6 km E Castelluccio Superiore (PZ), on

  • 25-07-2020 20:50:06 (UTC)
  • 25-07-2020 22:50:06 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.0150, 16.0460 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
Castelluccio Superiore PZ 6 824 824
Viggianello PZ 6 3025 3849
Castelluccio Inferiore PZ 6 2131 5980
Rotonda PZ 7 3494 9474
Episcopia PZ 8 1434 10908
San Severino Lucano PZ 8 1563 12471
Latronico PZ 9 4556 17027
Laino Borgo CS 9 1921 18948
Laino Castello CS 11 848 19796
Mormanno CS 15 3027 22823
Carbone PZ 15 638 23461
Fardella PZ 15 627 24088
Teana PZ 15 613 24701
Francavilla in Sinni PZ 15 4215 28916
Calvera PZ 17 387 29303
Castelsaraceno PZ 17 1384 30687
Lauria PZ 18 12919 43606
Chiaromonte PZ 19 1965 45571
Papasidero CS 20 734 46305
San Chirico Raparo PZ 20 1084 47389

Municipalities with at least 50000 inhabitants

An earthquake occurred to
73 Km S of Potenza (67122 inhabitants)
82 Km N of Cosenza (67546 inhabitants)
87 Km SW of Matera (60436 inhabitants)
100 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 1.4 2020-07-25
20:50:06		 40.0148 16.0458 7 2020-11-19
12:37:06		 Bollettino Sismico Italiano INGV 84191621
Reviewed
Rev100 		ML 1.4 2020-07-25
20:50:06		 39.9952 16.0405 8 2020-07-25
20:55:53		 Sala Sismica INGV-Roma 81344501
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-25 20:50:06 ± 0.17
Latitude 40.0148 ± 0.0081
Longitude 16.0458 ± 0.0129
Depth (km) 7 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 84191621

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1125
Semi-minor axis of confidence ellipse (meter) 492
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 71
Circular confidence region, given by single value of horizontal uncertainty (meter) 1120.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 120
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.42
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.70777
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 84191621
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-10-28 00:07:16

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 81344501
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-25 20:55:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MOMA.HHZ. 2020-07-25T20:51:53.45 3.0 undecidable manual Sn 6.02 0
GU.POPM.HHZ. 2020-07-25T20:51:47.08 3.0 undecidable manual Pg 19.450001 0
IV.GIUL.HHZ. 2020-07-25T20:51:27.79 3.0 undecidable manual Sg 9.44 0
IV.NARO.HHZ. 2020-07-25T20:51:27.23 3.0 undecidable manual Pg 16.24 0
IV.APEC.HHZ. 2020-07-25T20:51:19.77 3.0 negative manual Pn 8.34 0
AC.VLO.HHZ. 2020-07-25T20:51:16.94 3.0 undecidable manual Sn -0.96 0
AC.VLO.HHZ. 2020-07-25T20:50:44.95 3.0 undecidable manual Pn -1.19 0
IV.CAFE.HHZ. 2020-07-25T20:50:30.69 3.0 negative manual P 4.26 0
XK.ALB1.HHZ. 2020-07-25T20:50:25.22 3.0 undecidable manual P 0.34 0
IV.MGR.HHZ. 2020-07-25T20:50:21.40 0.6 undecidable manual S 288 43.9227 50 -0.48 44
IV.CELI.HHE. 2020-07-25T20:50:21.80 0.3 undecidable manual P 150 78.5658 50 0.98 51
IV.GRIS.HNZ. 2020-07-25T20:50:19.46 0.3 undecidable manual S 208 34.5432 101 0.5 68
IV.PTRP.HHZ. 2020-07-25T20:50:18.14 0.3 undecidable manual P 1 56.1993 50 0.76 59
IV.SALB.HHZ. 2020-07-25T20:50:16.87 0.6 undecidable manual S 121 29.748 103 -0.46 46
IV.CET2.HHZ. 2020-07-25T20:50:16.92 0.3 undecidable manual P 188 54.501 50 -0.18 70
IV.SIRI.HHZ. 2020-07-25T20:50:15.46 0.6 undecidable manual S 321 23.9538 106 0.08 50
IV.MGR.HHZ. 2020-07-25T20:50:14.73 0.3 undecidable manual P 288 43.9227 50 -0.76 60
IV.GRIS.HNZ. 2020-07-25T20:50:13.61 0.1 undecidable manual P 208 34.5432 101 -0.19 96
IV.MMN.HHZ. 2020-07-25T20:50:12.26 0.3 undecidable manual S 199 14.4744 115 -0.05 77
IV.SALB.HHZ. 2020-07-25T20:50:12.58 0.1 undecidable manual P 121 29.748 103 -0.28 95
IV.SIRI.HHZ. 2020-07-25T20:50:11.83 0.1 undecidable manual P 321 23.9538 106 0.1 100
IV.MMN.HHZ. 2020-07-25T20:50:10.06 0.3 undecidable manual P 199 14.4744 115 0.11 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MMN.HHN. ML:1.7 0.0005480000000000001 0.18 AML other m 2020-07-25T20:50:14.31
IV.MMN.HHE. ML:1.5 0.00033699999999999995 0.14 AML other m 2020-07-25T20:50:14.54
IV.SALB.HHN. ML:1.1 0.00006795 0.24 AML other m 2020-07-25T20:50:19.51
IV.SIRI.HHN. ML:1.6 0.00023150000000000002 1.56 AML other m 2020-07-25T20:50:19.80
IV.SIRI.HNN. ML:1.6 0.00022849999999999997 1.58 AML other m 2020-07-25T20:50:19.02
IV.SALB.HHE. ML:1.2 0.0000786 1.24 AML other m 2020-07-25T20:50:20.00
IV.SIRI.HHE. ML:1.5 0.000195 0.26 AML other m 2020-07-25T20:50:20.18
IV.SIRI.HNE. ML:1.5 0.0001895 0.26 AML other m 2020-07-25T20:50:20.18
IV.MGR.HHN. ML:1.2 0.0000431 0.26 AML other m 2020-07-25T20:50:21.81
IV.MGR.HHE. ML:1.3 0.0000618 1.5 AML other m 2020-07-25T20:50:22.88
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