Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 25-10-2020 and time 20:56:41 (UTC) in region 4 km NW Castelluccio Superiore (PZ)

A magnitude ML 1.2 earthquake occured in region: 4 km NW Castelluccio Superiore (PZ), on

  • 25-10-2020 20:56:41 (UTC)
  • 25-10-2020 21:56:41 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.0440, 15.9560 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 4 824 824
Castelluccio Inferiore PZ 4 2131 2955
Latronico PZ 7 4556 7511
Laino Borgo CS 10 1921 9432
Lauria PZ 10 12919 22351
Rotonda PZ 12 3494 25845
Laino Castello CS 12 848 26693
Episcopia PZ 13 1434 28127
Nemoli PZ 14 1495 29622
Viggianello PZ 14 3025 32647
Castelsaraceno PZ 14 1384 34031
Trecchina PZ 15 2316 36347
Carbone PZ 16 638 36985
San Severino Lucano PZ 16 1563 38548
Aieta CS 17 823 39371
Mormanno CS 17 3027 42398
Rivello PZ 17 2767 45165
Lagonegro PZ 19 5584 50749
Teana PZ 19 613 51362
San Chirico Raparo PZ 19 1084 52446
Papasidero CS 20 734 53180
Fardella PZ 20 627 53807
Calvera PZ 20 387 54194

Municipalities with at least 50000 inhabitants

An earthquake occurred to
68 Km S of Potenza (67122 inhabitants)
87 Km N of Cosenza (67546 inhabitants)
88 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 1.2 2020-10-25
20:56:41		 40.0438 15.9562 10 2021-02-26
14:56:20		 Bollettino Sismico Italiano INGV 87454581
Reviewed
Rev100 		ML 1.2 2020-10-25
20:56:41		 40.043 15.9573 10 2020-10-25
21:07:08		 Sala Sismica INGV-Roma 84129581
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-25 20:56:41 ± 0.07
Latitude 40.0438 ± 0.0027
Longitude 15.9562 ± 0.0070
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 87454581

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 560
Semi-minor axis of confidence ellipse (meter) 135
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 92
Circular confidence region, given by single value of horizontal uncertainty (meter) 560.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 140
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.11871
Epicentral distance of station farthest from the epicenter (degree) 0.42538
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 84129581
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-25 21:07:08

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 15
Type of magnitude ML
Reference to an origin 87454581
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-24 15:25:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GRIS.EHE. 2020-10-25T20:56:53.33 0.3 undecidable manual S 195 34.743 50 0.22 69
IV.MGR.HHZ. 2020-10-25T20:56:53.35 0.3 undecidable manual S 287 35.742 50 -0.01 72
IV.MCEL.HHZ. 2020-10-25T20:56:52.55 0.6 undecidable manual S 337 33.8439 50 -0.3 45
IV.SLCN.HNN. 2020-10-25T20:56:50.07 0.3 undecidable manual P 325 47.2194 50 0.09 69
IV.MMN.HHZ. 2020-10-25T20:56:48.31 0.6 undecidable manual S 170 17.1717 121 0.17 48
IV.SIRI.HHZ. 2020-10-25T20:56:48.51 0.6 undecidable manual S 334 17.0718 121 0.4 46
IV.GRIS.EHE. 2020-10-25T20:56:48.13 0.3 undecidable manual P 195 34.743 50 0.06 71
IV.SCHR.EHZ. 2020-10-25T20:56:48.89 0.6 undecidable manual S 30 20.0688 117 -0.1 48
IV.MGR.HHZ. 2020-10-25T20:56:48.13 0.1 undecidable manual P 287 35.742 50 -0.08 95
IV.MCEL.HHZ. 2020-10-25T20:56:47.84 0.3 undecidable manual P 337 33.8439 50 -0.08 71
MN.CUC.HHZ. 2020-10-25T20:56:46.58 0.6 undecidable manual S 245 13.1757 128 -0.4 46
IV.SIRI.HHZ. 2020-10-25T20:56:45.44 0.1 undecidable manual P 334 17.0718 121 0.26 94
IV.SCHR.EHZ. 2020-10-25T20:56:45.60 0.1 undecidable manual P 30 20.0688 117 -0.09 97
MN.CUC.HHZ. 2020-10-25T20:56:44.53 0.1 undecidable manual P 245 13.1757 128 0 100
IV.MMN.HHZ. 2020-10-25T20:56:44.97 0.3 undecidable manual P 170 17.1717 121 -0.23 71
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.CUC.HNN. ML:0.9 0.000082255862 0.1408 AML other m 2020-10-25T20:56:46.84
MN.CUC.HHN. ML:1.0 0.0000956 0.44 AML other m 2020-10-25T20:56:47.03
MN.CUC.HNE. ML:1.0 0.00011664850000000002 0.9728 AML other m 2020-10-25T20:56:47.55
IV.SCHR.EHE. ML:1.1 0.0000995 1.9 AML other m 2020-10-25T20:56:48.01
IV.SCHR.EHN. ML:1.1 0.00009805 1.82 AML other m 2020-10-25T20:56:48.98
IV.SIRI.HHN. ML:1.5 0.0002575 1.44 AML other m 2020-10-25T20:56:49.85
IV.SIRI.HNN. ML:1.4 0.000235 0.22 AML other m 2020-10-25T20:56:49.24
IV.SIRI.HHE. ML:1.4 0.00023799999999999998 0.9 AML other m 2020-10-25T20:56:49.71
IV.SIRI.HNE. ML:1.5 0.000258 0.9 AML other m 2020-10-25T20:56:49.26
IV.MCEL.HHN. ML:0.8 0.00002902426 0.1536 AML other m 2020-10-25T20:56:53.27
IV.MCEL.HHE. ML:1.0 0.00004574823999999999 0.2304 AML other m 2020-10-25T20:56:53.39
IV.MCEL.HNE. ML:1.6 0.00017230000000000001 1.6 AML other m 2020-10-25T20:56:53.83
IV.MGR.HHN. ML:0.8 0.00002725969 0.1408 AML other m 2020-10-25T20:56:54.39
IV.MCEL.HNN. ML:1.4 0.00011424999999999999 0.84 AML other m 2020-10-25T20:56:54.50
IV.MGR.HHE. ML:0.7 0.000019205562 0.1792 AML other m 2020-10-25T20:56:55.44
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