Earthquake with magnitude of ML 1.4 on date 15-08-2021 and time 00:32:33 (UTC) in region 5 km SE Troina (EN)

A magnitude ML 1.4 earthquake occured in region: 5 km SE Troina (EN), on

  • 15-08-2021 00:32:33 (UTC)
  • 15-08-2021 02:32:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.756, 14.645 at 33 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
Troina EN 5 9373 9373
Gagliano Castelferrato EN 11 3593 12966
San Teodoro ME 11 1403 14369
Regalbuto EN 11 7277 21646
CesarĂ² ME 12 2439 24085
Cerami EN 14 2006 26091
Agira EN 15 8345 34436
Bronte CT 17 19172 53608
Centuripe EN 17 5470 59078
Capizzi ME 18 3176 62254
Maniace CT 19 3765 66019
Adrano CT 20 36122 102141

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km NW of Catania (314555 inhabitants)
49 Km W of Acireale (52622 inhabitants)
59 Km NE of Caltanissetta (63360 inhabitants)
84 Km NE of Gela (75827 inhabitants)
90 Km N of Vittoria (63339 inhabitants)
93 Km N of Ragusa (73313 inhabitants)
94 Km SW of Messina (238439 inhabitants)
96 Km W of Reggio di Calabria (183035 inhabitants)
96 Km NW of Siracusa (122291 inhabitants)
100 Km N of Modica (54633 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 1.4 2021-08-15
00:32:33
37.7558 14.6447 33 2021-08-15
06:34:54
Sala Sismica INGV-Roma 94180611
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-15 00:32:33 ± 0.13
Latitude 37.7558 ± 0.0063
Longitude 14.6447 ± 0.0136
Depth (km) 33 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 94180611

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1198
Semi-minor axis of confidence ellipse (meter) 553
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 269
Circular confidence region, given by single value of horizontal uncertainty (meter) 1200
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 117
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.88134
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 94180611
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-15 06:34:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.HAVL.HHZ. 2021-08-15T00:33:03.06 0.6 undecidable manual S 154 0.8813 54 0.26 40
IV.SSY.HHZ. 2021-08-15T00:32:57.71 0.6 undecidable manual S 150 0.688 109 0.18 43
IV.HCRL.HHZ. 2021-08-15T00:32:53.79 0.6 undecidable manual S 147 0.5639 113 -0.3 43
IV.HAVL.HHZ. 2021-08-15T00:32:50.40 0.6 positive manual P 154 0.8813 54 -0.1 42
IV.HLNI.HHZ. 2021-08-15T00:32:50.94 0.6 undecidable manual S 156 0.4452 119 0.01 47
IV.MUCR.HHZ. 2021-08-15T00:32:47.92 0.6 undecidable manual S 32 0.339 127 -0.37 45
IV.SSY.HHZ. 2021-08-15T00:32:47.40 0.3 positive manual P 150 0.688 109 -0.06 66
IV.HCRL.HHZ. 2021-08-15T00:32:45.43 0.6 positive manual P 147 0.5639 113 -0.04 46
IV.EPZF.HHZ. 2021-08-15T00:32:45.28 0.3 undecidable manual S 68 0.1808 146 0.24 70
IV.EFIU.HHZ. 2021-08-15T00:32:44.03 0.1 undecidable manual P 86 0.4479 119 0.34 87
IV.AIO.HHE. 2021-08-15T00:32:44.70 0.1 undecidable manual P 65 0.5117 116 0.04 91
IV.HLNI.HHZ. 2021-08-15T00:32:43.42 0.3 positive manual P 156 0.4452 119 -0.23 67
IV.ESCV.HHZ. 2021-08-15T00:32:43.20 3.0 undecidable manual S 0
IV.GALF.HHZ. 2021-08-15T00:32:43.99 0.3 undecidable manual S 234 0.0764 164 0.26 73
IV.MUCR.HHZ. 2021-08-15T00:32:42.05 0.6 positive manual P 32 0.339 127 -0.08 47
IV.MCPD.HHZ. 2021-08-15T00:32:42.91 0.6 positive manual P 11 0.3696 125 0.35 44
IV.MSFR.HHE. 2021-08-15T00:32:41.26 0.1 undecidable manual P 351 0.2806 133 -0.1 94
IV.ESML.HHE. 2021-08-15T00:32:40.42 0.1 undecidable manual P 127 0.2311 139 -0.35 91
IV.EPZF.HHZ. 2021-08-15T00:32:39.97 0.6 negative manual P 68 0.1808 146 -0.28 47
IV.ACATE.EHZ. 2021-08-15T00:32:39.94 3.0 undecidable manual P 0
IV.GALF.HHZ. 2021-08-15T00:32:39.50 0.1 positive manual P 234 0.0764 164 0.01 100
IV.ESCV.HHZ. 2021-08-15T00:32:38.67 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ESCV.HHN. ML:1.9 0.000314 0.32 AML other m 2021-08-15T00:32:43.01
IV.GALF.HHE. ML:1.6 0.00018 0.38 AML other m 2021-08-15T00:32:44.64
IV.GALF.HHN. ML:1.6 0.000192 0.26 AML other m 2021-08-15T00:32:45.02
IV.EPZF.HHE. ML:1.4 0.0001065 0.68 AML other m 2021-08-15T00:32:45.39
IV.ESCV.HHE. ML:1.8 0.0002715 0.24 AML other m 2021-08-15T00:32:46.45
IV.EPZF.HHN. ML:1.5 0.0001195 0.84 AML other m 2021-08-15T00:32:47.20
IV.MUCR.HHN. ML:1.2 4.475E-5 0.82 AML other m 2021-08-15T00:32:49.46
IV.MUCR.HHE. ML:1.2 4.235E-5 1.68 AML other m 2021-08-15T00:32:49.08
IV.MCPD.HHE. ML:0.8 1.64E-5 0.42 AML other m 2021-08-15T00:32:49.31
IV.MCPD.HHN. ML:0.8 1.705E-5 0.78 AML other m 2021-08-15T00:32:49.34
IV.HLNI.HHE. ML:1.3 4.13E-5 0.68 AML other m 2021-08-15T00:32:51.95
IV.HLNI.HHN. ML:1.4 5.04E-5 0.24 AML other m 2021-08-15T00:32:52.67
IV.HCRL.HHN. ML:1.3 2.865E-5 0.7 AML other m 2021-08-15T00:32:54.42
IV.HCRL.HHE. ML:1.2 2.485E-5 1.58 AML other m 2021-08-15T00:32:56.92
IV.HAVL.HHN. ML:1.6 4.24E-5 0.74 AML other m 2021-08-15T00:33:03.91
IV.HAVL.HHE. ML:1.7 4.61E-5 0.9 AML other m 2021-08-15T00:33:04.18
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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