Earthquake with magnitude of ML 1.2 on date 15-01-2021 and time 08:32:48 (Italy) in region 5 km SE Collesano (PA)

A magnitude ML 1.2 earthquake occured in region: 5 km SE Collesano (PA), on

  • 15-01-2021 07:32:48 (UTC)
  • 15-01-2021 08:32:48 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.8880, 13.9690 at 8 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
Collesano PA 5 4054 4054
Scillato PA 6 613 4667
Isnello PA 7 1589 6256
Polizzi Generosa PA 9 3407 9663
Gratteri PA 9 963 10626
Caltavuturo PA 10 4017 14643
Castelbuono PA 12 8943 23586
Sclafani Bagni PA 12 426 24012
Lascari PA 13 3588 27600
Castellana Sicula PA 13 3411 31011
Cerda PA 14 5330 36341
Campofelice di Roccella PA 14 7537 43878
Petralia Sottana PA 14 2821 46699
Petralia Soprana PA 16 3360 50059
Aliminusa PA 17 1236 51295
Geraci Siculo PA 17 1945 53240
Blufi PA 18 1029 54269
Cefalù PA 18 14393 68662
Sciara PA 18 2822 71484
Montemaggiore Belsito PA 19 3365 74849
Bompietro PA 19 1401 76250
San Mauro Castelverde PA 20 1701 77951
Pollina PA 20 2974 80925
Valledolmo PA 20 3594 84519

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km N of Caltanissetta (63360 inhabitants)
45 Km SE of Bagheria (55387 inhabitants)
59 Km E of Palermo (674435 inhabitants)
73 Km NE of Agrigento (59770 inhabitants)
95 Km N of Gela (75827 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 2021-01-15
07:32:48
37.8878 13.9688 8 2021-07-12
16:55:01
Bollettino Sismico Italiano INGV 87903271
Reviewed
Rev100
ML 1.2 2021-01-15
07:32:48
37.9087 13.9813 9 2021-01-15
07:41:04
Sala Sismica INGV-Roma 86260591
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-15 07:32:48 ± 0.27
Latitude 37.8878 ± 0.0135
Longitude 13.9688 ± 0.0308
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 87903271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2803
Semi-minor axis of confidence ellipse (meter) 1233
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 68
Circular confidence region, given by single value of horizontal uncertainty (meter) 2800.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 220
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.08633
Epicentral distance of station farthest from the epicenter (degree) 0.25091
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 86260591
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-15 07:41:04

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 87903271
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-03-08 11:39:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RESU.HHZ. 2021-01-15T07:32:58.45 0.6 undecidable manual S 164 27.8499 106 0.26 49
IV.PLLN.EHZ. 2021-01-15T07:32:55.51 0.6 undecidable manual S 53 19.1697 113 0.16 47
IV.RESU.HHZ. 2021-01-15T07:32:54.64 0.3 undecidable manual P 164 27.8499 106 0.7 67
IV.GIB.HHZ. 2021-01-15T07:32:53.71 0.6 undecidable manual S 24 12.3765 123 0.45 47
IV.PETRA.HHZ. 2021-01-15T07:32:53.98 0.6 undecidable manual S 115 14.1747 120 0.2 50
IV.CSLB.HHZ. 2021-01-15T07:32:52.21 0.6 undecidable manual S 55 9.5793 130 -0.25 48
IV.PETRA.HHZ. 2021-01-15T07:32:51.24 0.3 undecidable manual P 115 14.1747 120 -0.15 73
IV.PLLN.EHZ. 2021-01-15T07:32:51.99 0.3 undecidable manual P 53 19.1697 113 -0.31 73
IV.CSLB.HHZ. 2021-01-15T07:32:50.42 0.1 positive manual P 55 9.5793 130 -0.22 98
IV.GIB.HHZ. 2021-01-15T07:32:50.99 0.1 positive manual P 24 12.3765 123 -0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSLB.HHE. ML:0.9 0.00012357665 0.384 AML other m 2021-01-15T07:32:52.43
IV.CSLB.HHN. ML:1.2 0.000237357 0.3968 AML other m 2021-01-15T07:32:52.45
IV.PETRA.HHE. ML:1.2 0.000188 0.54 AML other m 2021-01-15T07:32:54.68
IV.PETRA.HHN. ML:1.2 0.000182 0.32 AML other m 2021-01-15T07:32:56.28
IV.GIB.HHN. ML:1.3 0.00026252105000000006 0.5184 AML other m 2021-01-15T07:32:56.32
IV.GIB.HHE. ML:1.3 0.0002468187 1.2384 AML other m 2021-01-15T07:32:57.92
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