Earthquake with magnitude of ML 0.9 on date 21-06-2021 and time 08:53:18 (UTC) in region 5 km NE Isnello (PA)

A magnitude ML 0.9 earthquake occured in region: 5 km NE Isnello (PA), on

  • 21-06-2021 08:53:18 (UTC)
  • 21-06-2021 10:53:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.9790, 14.0450 at 4 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Isnello PA 5 1589 1589
Gratteri PA 6 963 2552
Castelbuono PA 6 8943 11495
Cefalù PA 7 14393 25888
Pollina PA 9 2974 28862
Lascari PA 9 3588 32450
Collesano PA 11 4054 36504
Campofelice di Roccella PA 14 7537 44041
San Mauro Castelverde PA 15 1701 45742
Geraci Siculo PA 16 1945 47687
Tusa ME 17 2925 50612
Scillato PA 18 613 51225
Polizzi Generosa PA 19 3407 54632
Petralia Sottana PA 20 2821 57453

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km E of Bagheria (55387 inhabitants)
54 Km N of Caltanissetta (63360 inhabitants)
62 Km E of Palermo (674435 inhabitants)
85 Km NE of Agrigento (59770 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
Reviewed
Rev100
ML 0.9 2021-06-21
08:53:18
37.9792 14.0447 4 2021-06-21
09:00:49
Sala Sismica INGV-Roma 91646821
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-06-21 08:53:18 ± 0.2
Latitude 37.9792 ± 0.0063
Longitude 14.0447 ± 0.0080
Depth (km) 4 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 91646821

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 723
Semi-minor axis of confidence ellipse (meter) 286
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 216
Circular confidence region, given by single value of horizontal uncertainty (meter) 720.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 133
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.23562
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 91646821
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-06-21 09:00:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MCPD.HHZ. 2021-06-21T08:53:28.15 3.0 negative manual P -0.01 0
IV.PETRA.HHZ. 2021-06-21T08:53:24.87 0.3 undecidable manual S 159 17.2716 102 0.53 65
IV.SCIAR.HNZ. 2021-06-21T08:53:23.54 0.1 undecidable manual P 261 26.1516 98 0.04 95
IV.PETRA.HHZ. 2021-06-21T08:53:21.60 0.3 undecidable manual P 159 17.2716 102 -0.15 71
IV.PLLN.EHZ. 2021-06-21T08:53:21.64 0.3 undecidable manual S 80 8.7801 113 0.15 72
IV.CSLB.HHZ. 2021-06-21T08:53:20.01 0.3 undecidable manual S 166 4.7952 127 -0.28 71
IV.CSLB.HHZ. 2021-06-21T08:53:19.24 0.1 undecidable manual P 166 4.7952 127 -0.17 96
IV.PLLN.EHZ. 2021-06-21T08:53:19.96 0.1 undecidable manual P 80 8.7801 113 -0.14 96
IV.GIB.HHZ. 2021-06-21T08:53:19.83 0.3 undecidable manual S 307 1.998 151 0.17 73
IV.GIB.HHZ. 2021-06-21T08:53:19.03 0.1 undecidable manual P 307 1.998 151 -0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GIB.HHE. ML:0.0 0.0006728337 0.224 AML other m 2021-06-21T08:53:20.09
IV.PLLN.EHE. ML:0.0 0.00020469245 0.4032 AML other m 2021-06-21T08:53:21.96
IV.PETRA.HHN. ML:0.8 0.000066638775 0.416 AML other m 2021-06-21T08:53:27.24
IV.PETRA.HHE. ML:1.0 0.00009315052 0.4608 AML other m 2021-06-21T08:53:28.08
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