Earthquake with magnitude of ML 1.8 on date 31-01-2021 and time 13:41:03 (Italy) in region 3 km SE Episcopia (PZ)

A magnitude ML 1.8 earthquake occured in region: 3 km SE Episcopia (PZ), on

  • 31-01-2021 12:41:03 (UTC)
  • 31-01-2021 13:41:03 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.0600, 16.1290 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Episcopia PZ 3 1434 1434
San Severino Lucano PZ 5 1563 2997
Francavilla in Sinni PZ 7 4215 7212
Fardella PZ 7 627 7839
Teana PZ 8 613 8452
Carbone PZ 10 638 9090
Calvera PZ 10 387 9477
Viggianello PZ 10 3025 12502
Chiaromonte PZ 10 1965 14467
Latronico PZ 11 4556 19023
Castelluccio Superiore PZ 14 824 19847
Rotonda PZ 14 3494 23341
Castelluccio Inferiore PZ 15 2131 25472
San Costantino Albanese PZ 15 729 26201
San Chirico Raparo PZ 15 1084 27285
Castronuovo di Sant'Andrea PZ 15 1067 28352
Castelsaraceno PZ 17 1384 29736
Senise PZ 17 7115 36851
Terranova di Pollino PZ 17 1208 38059
Noepoli PZ 17 878 38937
Laino Borgo CS 18 1921 40858
San Paolo Albanese PZ 18 294 41152
Roccanova PZ 19 1543 42695
Cersosimo PZ 19 656 43351
Laino Castello CS 19 848 44199

Municipalities with at least 50000 inhabitants

An earthquake occurred to
70 Km SE of Potenza (67122 inhabitants)
79 Km SW of Matera (60436 inhabitants)
86 Km N of Cosenza (67546 inhabitants)
93 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 1.8 2021-01-31
12:41:03
40.0595 16.1288 10 2021-07-12
16:54:59
Bollettino Sismico Italiano INGV 87233451
Reviewed
Rev100
ML 2.0 2021-01-31
12:41:02
40.0487 16.1122 10 2021-01-31
13:18:53
Sala Sismica INGV-Roma 86736771
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-31 12:41:03 ± 0.12
Latitude 40.0595 ± 0.0054
Longitude 16.1288 ± 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 87233451

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 559
Semi-minor axis of confidence ellipse (meter) 472
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 80
Circular confidence region, given by single value of horizontal uncertainty (meter) 610.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 66
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) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.14569
Epicentral distance of station farthest from the epicenter (degree) 0.59445
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 87233451
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-03-29 14:22:20

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 86736771
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-31 13:18:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MCEL.HHZ. 2021-01-31T12:41:16.83 0.6 undecidable manual S 317 40.4262 50 0.33 46
IV.CET2.HHZ. 2021-01-31T12:41:14.73 0.3 undecidable manual P 194 60.6948 50 0.81 56
IV.MIGL.HHZ. 2021-01-31T12:41:14.59 0.3 undecidable manual P 23 65.9895 50 -0.14 68
IV.PTRP.HHZ. 2021-01-31T12:41:13.17 0.1 undecidable manual P 354 51.6039 50 0.66 81
MN.CUC.HNZ. 2021-01-31T12:41:13.45 0.6 undecidable manual S 255 27.5502 50 0.37 46
IV.SIRI.HHZ. 2021-01-31T12:41:12.66 0.3 undecidable manual S 302 26.0517 50 0.01 75
IV.ORI.HHZ. 2021-01-31T12:41:12.79 0.6 undecidable manual S 92 27.3504 50 -0.22 48
IV.TDS.HHZ. 2021-01-31T12:41:12.12 0.3 undecidable manual P 158 47.7189 50 0.2 70
IV.MGR.HNZ. 2021-01-31T12:41:11.79 0.3 undecidable manual P 280 49.617 50 -0.42 66
IV.MMN.HHZ. 2021-01-31T12:41:11.73 0.6 undecidable manual S 212 22.0668 114 0.32 47
IV.CRAC.EHZ. 2021-01-31T12:41:11.46 0.3 undecidable manual P 36 44.1225 50 0.09 72
IV.GRIS.EHZ. 2021-01-31T12:41:10.80 0.3 undecidable manual P 214 42.4242 50 -0.31 69
IV.MCEL.HHZ. 2021-01-31T12:41:10.40 0.1 undecidable manual P 317 40.4262 50 -0.4 90
IV.SCHR.EHZ. 2021-01-31T12:41:09.62 0.3 undecidable manual S 344 16.1727 122 0.04 76
IV.ORI.HHZ. 2021-01-31T12:41:08.59 0.3 undecidable manual P 92 27.3504 50 -0.19 72
MN.CUC.HNZ. 2021-01-31T12:41:08.63 0.3 undecidable manual P 255 27.5502 50 -0.19 72
IV.SIRI.HHZ. 2021-01-31T12:41:08.34 0.1 undecidable manual P 302 26.0517 50 -0.23 96
IV.MMN.HHZ. 2021-01-31T12:41:07.49 0.3 undecidable manual P 212 22.0668 114 -0.37 70
IV.SCHR.EHZ. 2021-01-31T12:41:06.91 0.1 undecidable manual P 344 16.1727 122 0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SCHR.EHN. ML:1.9 0.000704 1.82 AML other m 2021-01-31T12:41:10.03
IV.SCHR.EHE. ML:2.1 0.001242467 0.096 AML other m 2021-01-31T12:41:10.18
IV.SIRI.HHE. ML:1.7 0.0003050372 0.5184 AML other m 2021-01-31T12:41:13.16
IV.SIRI.HNE. ML:1.7 0.0002624709 0.48 AML other m 2021-01-31T12:41:13.14
IV.SIRI.HNN. ML:1.7 0.0002824624 0.1792 AML other m 2021-01-31T12:41:12.93
IV.SIRI.HHN. ML:1.7 0.00028471409999999996 0.1792 AML other m 2021-01-31T12:41:13.02
IV.ORI.HHN. ML:1.6 0.00019294735 0.3008 AML other m 2021-01-31T12:41:13.13
IV.ORI.HHE. ML:1.4 0.0001200071 0.256 AML other m 2021-01-31T12:41:13.31
IV.MCEL.HHE. ML:1.9 0.000248 0.92 AML other m 2021-01-31T12:41:19.08
IV.MCEL.HHN. ML:1.8 0.00023999999999999998 0.78 AML other m 2021-01-31T12:41:19.61
IV.MCEL.HNN. ML:2.3 0.0007175 0.9 AML other m 2021-01-31T12:41:20.07
IV.MCEL.HNE. ML:2.2 0.0006005 0.62 AML other m 2021-01-31T12:41:22.48
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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