Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 07-08-2021 and time 22:15:26 (Italy) in region 4 km SE Pettineo (ME)

A magnitude ML 1.2 earthquake occured in region: 4 km SE Pettineo (ME), on

  • 07-08-2021 20:15:26 (UTC)
  • 07-08-2021 22:15:26 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.9460, 14.3230 at 9 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.

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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
Pettineo ME 4 1350 1350
Reitano ME 4 806 2156
Mistretta ME 4 4791 6947
Motta d'Affermo ME 4 739 7686
Castel di Lucio ME 7 1294 8980
Santo Stefano di Camastra ME 8 4694 13674
Tusa ME 9 2925 16599
San Mauro Castelverde PA 12 1701 18300
Caronia ME 14 3364 21664
Pollina PA 16 2974 24638
Capizzi ME 17 3176 27814
Geraci Siculo PA 18 1945 29759
Gangi PA 19 6811 36570

Municipalities with at least 50000 inhabitants

An earthquake occurred to
55 Km NE of Caltanissetta (63360 inhabitants)
73 Km E of Bagheria (55387 inhabitants)
83 Km W of Acireale (52622 inhabitants)
83 Km NW of Catania (314555 inhabitants)
86 Km E of Palermo (674435 inhabitants)
96 Km NE of Agrigento (59770 inhabitants)
98 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
Reviewed
Rev100 		ML 1.2 2021-08-07
20:15:26		 37.9462 14.3228 9 2021-08-07
20:22:22		 Sala Sismica INGV-Roma 93813331
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-07 20:15:26 ± 0.17
Latitude 37.9462 ± 0.0135
Longitude 14.3228 ± 0.0137
Depth (km) 9 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 93813331

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1377
Semi-minor axis of confidence ellipse (meter) 1207
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 316
Circular confidence region, given by single value of horizontal uncertainty (meter) 1380.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 146
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) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.30397
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:1.2

Field Value
Value 1.2
Uncertainty 0.4
Num. used stations 12
Type of magnitude ML
Reference to an origin 93813331
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-07 20:22:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CRJA.HHZ. 2021-08-07T20:15:38.36 3.0 negative manual Pg 0.32 0
IV.GALF.HHZ. 2021-08-07T20:15:38.82 0.3 undecidable manual S 141 33.744 50 0.38 74
IV.GIB.HHZ. 2021-08-07T20:15:36.39 0.6 undecidable manual S 281 26.4513 110 0.06 54
IV.PETRA.HHZ. 2021-08-07T20:15:35.02 0.3 undecidable manual S 236 22.0668 113 0.09 81
IV.CSLB.HHZ. 2021-08-07T20:15:35.59 0.3 undecidable manual S 268 23.2545 112 0.3 77
IV.GALF.HHZ. 2021-08-07T20:15:33.10 0.1 negative manual P 141 33.744 50 -0.33 100
IV.GIB.HHZ. 2021-08-07T20:15:32.23 0.3 undecidable manual P 281 26.4513 110 0.01 81
IV.MSFR.HHZ. 2021-08-07T20:15:32.26 0.6 undecidable manual P 67 25.4523 110 0.23 52
IV.CSLB.HHZ. 2021-08-07T20:15:31.36 0.3 undecidable manual P 268 23.2545 112 -0.26 78
IV.PETRA.HHZ. 2021-08-07T20:15:31.12 0.3 undecidable manual P 236 22.0668 113 -0.29 77
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PETRA.HHE. ML:1.0 0.000060444465000000005 0.4608 AML other m 2021-08-07T20:15:37.14
IV.PETRA.HHN. ML:1.0 0.00006173464 0.256 AML other m 2021-08-07T20:15:36.04
IV.CSLB.HHE. ML:0.4 0.000017176495 0.3584 AML other m 2021-08-07T20:15:37.73
IV.CSLB.HHN. ML:0.6 0.00002277005 0.4736 AML other m 2021-08-07T20:15:37.81
IV.GIB.HHE. ML:1.5 0.00017868424999999998 1.0624 AML other m 2021-08-07T20:15:49.86
IV.GIB.HHN. ML:1.4 0.0001493818 0.9216 AML other m 2021-08-07T20:15:49.82
IV.MSFR.HHE. ML:0.8 0.000040683869999999996 1.5616 AML other m 2021-08-07T20:15:45.94
IV.MSFR.HHN. ML:0.7 0.000032423355 1.344 AML other m 2021-08-07T20:15:49.65
IV.GALF.HNE. ML:1.4 0.00011572425 0.5632 AML other m 2021-08-07T20:15:57.87
IV.GALF.HNN. ML:1.4 0.00010698221500000001 0.7424 AML other m 2021-08-07T20:15:38.33
IV.GALF.HHE. ML:1.4 0.00010570185 0.4608 AML other m 2021-08-07T20:15:43.64
IV.GALF.HHN. ML:1.5 0.00014414109999999998 0.7936 AML other m 2021-08-07T20:15:40.92
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