Earthquake with magnitude of ML 1.6 on date 15-09-2021 and time 14:06:20 (Italy) in region 6 km W Castel di Lucio (ME)

A magnitude ML 1.6 earthquake occured in region: 6 km W Castel di Lucio (ME), on

  • 15-09-2021 12:06:20 (UTC)
  • 15-09-2021 14:06:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.8700, 14.2480 at 11 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
Castel di Lucio ME 6 1294 1294
San Mauro Castelverde PA 7 1701 2995
Geraci Siculo PA 8 1945 4940
Gangi PA 9 6811 11751
Pettineo ME 12 1350 13101
Mistretta ME 12 4791 17892
Tusa ME 13 2925 20817
Motta d'Affermo ME 13 739 21556
Reitano ME 14 806 22362
Petralia Soprana PA 15 3360 25722
Sperlinga EN 15 805 26527
Petralia Sottana PA 15 2821 29348
Castelbuono PA 16 8943 38291
Pollina PA 17 2974 41265
Santo Stefano di Camastra ME 19 4694 45959
Bompietro PA 19 1401 47360
Nicosia EN 19 13899 61259
Blufi PA 20 1029 62288

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km NE of Caltanissetta (63360 inhabitants)
69 Km E of Bagheria (55387 inhabitants)
82 Km E of Palermo (674435 inhabitants)
84 Km NW of Catania (314555 inhabitants)
85 Km NE of Agrigento (59770 inhabitants)
86 Km W of Acireale (52622 inhabitants)
89 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 1.6 2021-09-15
12:06:20
37.8695 14.2483 11 2022-03-30
13:04:40
Bollettino Sismico Italiano INGV 101754601
Reviewed
Rev100
ML 1.6 2021-09-15
12:06:21
37.8542 14.2477 7 2021-09-15
12:14:09
Sala Sismica INGV-Roma 95461721
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-15 12:06:20 ± 0.18
Latitude 37.8695 ± 0.0135
Longitude 14.2483 ± 0.0125
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 101754601

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1577
Semi-minor axis of confidence ellipse (meter) 850
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 209
Circular confidence region, given by single value of horizontal uncertainty (meter) 1580.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 93
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.11152
Epicentral distance of station farthest from the epicenter (degree) 0.31746
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:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 101754601
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-03-07 10:40:06

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 95461721
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-15 12:14:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GIB.HHZ. 2021-09-15T12:06:29.74 0.6 undecidable manual S 305 23.6541 50 0.09 49
IV.PLLN.EHZ. 2021-09-15T12:06:28.22 0.3 undecidable manual S 326 16.4724 123 0.58 68
IV.CAGR.HHE. 2021-09-15T12:06:28.00 0.6 undecidable manual P 141 35.2425 50 0.3 47
IV.MSFR.HHZ. 2021-09-15T12:06:27.66 0.1 undecidable manual P 59 35.1426 50 -0.03 98
IV.GALF.HHZ. 2021-09-15T12:06:27.27 0.1 undecidable manual P 122 32.9448 50 -0.09 98
IV.CSLB.HHZ. 2021-09-15T12:06:27.94 0.6 undecidable manual S 294 18.2706 120 -0.24 50
IV.RESU.HHZ. 2021-09-15T12:06:27.16 0.3 undecidable manual P 214 29.8479 50 0.28 70
IV.PETRA.HHZ. 2021-09-15T12:06:26.97 0.3 undecidable manual S 251 12.3765 131 0.47 70
IV.PLLN.EHZ. 2021-09-15T12:06:25.02 0.1 undecidable manual P 326 16.4724 123 0.26 98
IV.GIB.HHZ. 2021-09-15T12:06:25.78 0.1 undecidable manual P 305 23.6541 50 -0.13 100
IV.CSLB.HHZ. 2021-09-15T12:06:24.56 0.1 undecidable manual P 294 18.2706 120 -0.51 93
IV.PETRA.HHZ. 2021-09-15T12:06:23.70 0.1 undecidable manual P 251 12.3765 131 -0.4 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PETRA.HHE. ML:1.7 0.0005335 0.26 AML other m 2021-09-15T12:06:27.26
IV.PETRA.HHN. ML:1.5 0.0003445 0.94 AML other m 2021-09-15T12:06:28.59
IV.CSLB.HHE. ML:1.2 0.000125 0.26 AML other m 2021-09-15T12:06:30.00
IV.PLLN.EHN. ML:1.8 0.0006414999999999999 1 AML other m 2021-09-15T12:06:30.00
IV.PLLN.EHE. ML:1.8 0.0006360000000000001 1.36 AML other m 2021-09-15T12:06:31.24
IV.CSLB.HHN. ML:1.2 0.00011649999999999999 0.38 AML other m 2021-09-15T12:06:31.59
IV.GIB.HHE. ML:1.5 0.00019 1.28 AML other m 2021-09-15T12:06:31.29
IV.GIB.HHN. ML:1.6 0.000255 0.7 AML other m 2021-09-15T12:06:32.37
IV.RESU.HHE. ML:1.4 0.0001205 0.48 AML other m 2021-09-15T12:06:35.55
IV.GALF.HHE. ML:1.9 0.0003235 1.64 AML other m 2021-09-15T12:06:36.13
IV.GALF.HHN. ML:1.9 0.000331 0.42 AML other m 2021-09-15T12:06:36.13
IV.RESU.HHN. ML:1.4 0.0001315 0.48 AML other m 2021-09-15T12:06:39.88
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