Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 18-01-2021 and time 15:54:13 (Italy) in region 4 km SW Francavilla in Sinni (PZ)

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

  • 18-01-2021 14:54:13 (UTC)
  • 18-01-2021 15:54:13 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.0580, 16.1710 at 24 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
Francavilla in Sinni PZ 4 4215 4215
San Severino Lucano PZ 5 1563 5778
Fardella PZ 6 627 6405
Episcopia PZ 6 1434 7839
Teana PZ 8 613 8452
Chiaromonte PZ 8 1965 10417
Calvera PZ 10 387 10804
Carbone PZ 12 638 11442
Viggianello PZ 12 3025 14467
San Costantino Albanese PZ 12 729 15196
Noepoli PZ 14 878 16074
Senise PZ 14 7115 23189
Latronico PZ 14 4556 27745
Terranova di Pollino PZ 14 1208 28953
San Paolo Albanese PZ 14 294 29247
Castronuovo di Sant'Andrea PZ 15 1067 30314
Cersosimo PZ 15 656 30970
Rotonda PZ 16 3494 34464
San Chirico Raparo PZ 17 1084 35548
Castelluccio Superiore PZ 17 824 36372
Roccanova PZ 18 1543 37915
Castelluccio Inferiore PZ 18 2131 40046
Castelsaraceno PZ 19 1384 41430
San Giorgio Lucano MT 20 1217 42647

Municipalities with at least 50000 inhabitants

An earthquake occurred to
72 Km SE of Potenza (67122 inhabitants)
77 Km SW of Matera (60436 inhabitants)
85 Km N of Cosenza (67546 inhabitants)
92 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 2021-01-18
14:54:13		 40.0582 16.1708 24 2021-07-12
16:55:00		 Bollettino Sismico Italiano INGV 87627401
Reviewed
Rev100 		ML 1.5 2021-01-18
14:54:13		 40.0548 16.1872 25 2021-01-18
15:22:33		 Sala Sismica INGV-Roma 86353971
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-18 14:54:13 ± 0.19
Latitude 40.0582 ± 0.0063
Longitude 16.1708 ± 0.0082
Depth (km) 24 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 87627401

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 739
Semi-minor axis of confidence ellipse (meter) 247
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 61
Circular confidence region, given by single value of horizontal uncertainty (meter) 740.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 60
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) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.15828
Epicentral distance of station farthest from the epicenter (degree) 0.41818
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 11
Type of magnitude ML
Reference to an origin 87627401
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-03-02 12:11:48

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 11
Type of magnitude ML
Reference to an origin 86353971
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-18 15:22:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GRIS.EHE. 2021-01-18T14:54:29.50 0.6 undecidable manual S 218 44.4222 111 0.76 40
IV.CRAC.EHE. 2021-01-18T14:54:28.57 0.3 undecidable manual S 32 42.2244 112 0.36 69
IV.MCEL.HHZ. 2021-01-18T14:54:28.49 0.3 undecidable manual S 314 43.0236 112 0.09 73
MN.CUC.HHE. 2021-01-18T14:54:25.45 0.3 undecidable manual S 257 31.0467 121 -0.07 74
IV.ORI.HHN. 2021-01-18T14:54:24.91 1.0 undecidable manual S 92 23.754 129 0.98 19
IV.SIRI.HHZ. 2021-01-18T14:54:24.98 0.6 undecidable manual S 298 29.1486 123 -0.12 49
IV.MMN.HHE. 2021-01-18T14:54:24.36 0.3 undecidable manual S 220 24.0537 129 0.36 71
IV.SALB.HHZ. 2021-01-18T14:54:23.86 0.3 undecidable manual S 143 24.9528 128 -0.33 71
IV.GRIS.EHE. 2021-01-18T14:54:22.00 0.6 undecidable manual P 218 44.4222 111 -0.42 45
IV.CRAC.EHE. 2021-01-18T14:54:22.07 0.3 undecidable manual P 32 42.2244 112 -0.04 74
IV.SCHR.EHZ. 2021-01-18T14:54:22.46 0.3 undecidable manual S 333 17.5713 139 -0.29 73
IV.MCEL.HHZ. 2021-01-18T14:54:22.14 0.1 undecidable manual P 314 43.0236 112 -0.08 97
IV.TDS.HHZ. 2021-01-18T14:54:21.84 0.6 undecidable manual P 162 46.4202 110 -0.86 38
IV.SIRI.HHZ. 2021-01-18T14:54:20.23 0.1 undecidable manual P 298 29.1486 123 -0.08 99
MN.CUC.HHE. 2021-01-18T14:54:20.94 0.1 undecidable manual P 257 31.0467 121 0.38 93
IV.MMN.HHE. 2021-01-18T14:54:19.44 0.6 undecidable manual P 220 24.0537 129 -0.24 48
IV.SALB.HHZ. 2021-01-18T14:54:19.69 0.1 undecidable manual P 143 24.9528 128 -0.1 100
IV.ORI.HHN. 2021-01-18T14:54:19.93 0.1 undecidable manual P 92 23.754 129 0.29 96
IV.SCHR.EHZ. 2021-01-18T14:54:18.73 0.1 undecidable manual P 333 17.5713 139 -0.23 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OT.TAR1.HHN. ML:2.1 0.0001102274 0.0992 AML other m 2021-01-18T14:54:20.90
IV.SCHR.EHN. ML:1.3 0.00011069606 0.2432 AML other m 2021-01-18T14:54:23.13
IV.SCHR.EHE. ML:1.5 0.0001668472 0.3968 AML other m 2021-01-18T14:54:23.27
IV.SALB.HHN. ML:1.4 0.000097906115 0.096 AML other m 2021-01-18T14:54:24.59
IV.SALB.HHE. ML:1.5 0.0001245 0.1 AML other m 2021-01-18T14:54:24.97
IV.SIRI.HHE. ML:1.3 0.00007635669 0.1792 AML other m 2021-01-18T14:54:27.60
IV.SIRI.HNE. ML:1.3 0.00006955992 0.1792 AML other m 2021-01-18T14:54:27.60
IV.SIRI.HHN. ML:1.3 0.000068600755 0.1984 AML other m 2021-01-18T14:54:27.61
IV.MCEL.HHN. ML:1.5 0.0000964 1.68 AML other m 2021-01-18T14:54:28.98
IV.MCEL.HHE. ML:1.4 0.0000741198 0.16 AML other m 2021-01-18T14:54:29.83
IV.SIRI.HNN. ML:1.3 0.000075576365 0.2976 AML other m 2021-01-18T14:54:43.73
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