Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 30-08-2022 and time 01:04:54 (Italy) in region 10 km SW Bronte (CT)

A magnitude ML 1.6 earthquake occured in region: 10 km SW Bronte (CT), on

  • 29-08-2022 23:04:54 (UTC)
  • 30-08-2022 01:04:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7290, 14.7490 at 18 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.

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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
Bronte CT 10 19172 19172
Adrano CT 11 36122 55294
Centuripe EN 12 5470 60764
Regalbuto EN 13 7277 68041
Cesarò ME 13 2439 70480
San Teodoro ME 14 1403 71883
Biancavilla CT 14 24007 95890
Troina EN 15 9373 105263
Maletto CT 15 3920 109183
Maniace CT 16 3765 112948
Santa Maria di Licodia CT 18 7641 120589
Catenanuova EN 19 4866 125455
Gagliano Castelferrato EN 19 3593 129048
Ragalna CT 20 3924 132972

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km NW of Catania (314555 inhabitants)
39 Km W of Acireale (52622 inhabitants)
66 Km E of Caltanissetta (63360 inhabitants)
86 Km NE of Gela (75827 inhabitants)
88 Km SW of Messina (238439 inhabitants)
89 Km NW of Siracusa (122291 inhabitants)
89 Km N of Vittoria (63339 inhabitants)
89 Km SW of Reggio di Calabria (183035 inhabitants)
89 Km N of Ragusa (73313 inhabitants)
97 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
Bulletin
Rev1000 		ML 1.6 2022-08-29
23:04:54		 37.7293 14.7492 18 2023-01-31
19:04:00		 Bollettino Sismico Italiano INGV 113891621
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-08-29 23:04:54 ± 0.2
Latitude 37.7293 ± 0.0063
Longitude 14.7492 ± 0.0114
Depth (km) 18 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 113891621

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 929
Semi-minor axis of confidence ellipse (meter) 425
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 100
Circular confidence region, given by single value of horizontal uncertainty (meter) 930.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 80
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.05486
Epicentral distance of station farthest from the epicenter (degree) 0.95598
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 19
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 113891621
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-01-29 20:51:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ISPIC.EHZ. 2022-08-29T23:05:25.84 0.6 undecidable manual S 173 106.116 94 0.67 37
IV.HVZN.HNZ. 2022-08-29T23:05:14.24 0.6 undecidable manual S 183 61.1943 98 1 34
IV.ISPIC.EHZ. 2022-08-29T23:05:11.55 0.3 undecidable manual P 173 106.116 94 -0.59 56
IV.HLNI.HHZ. 2022-08-29T23:05:08.55 0.6 undecidable manual S 166 43.623 103 -0.08 48
IV.HMDC.HHZ. 2022-08-29T23:05:08.60 0.3 undecidable manual P 178 85.5477 95 -0.37 62
IV.IVPL.HHZ. 2022-08-29T23:05:07.52 0.3 undecidable manual P 16 74.5698 96 0.24 66
IV.MUCR.HHZ. 2022-08-29T23:05:06.72 0.6 undecidable manual S 17 36.4413 106 -0.05 49
IV.HVZN.HNZ. 2022-08-29T23:05:05.72 0.3 undecidable manual P 183 61.1943 98 0.47 64
IV.AIO.HHZ. 2022-08-29T23:05:04.08 0.3 undecidable manual P 58 50.1165 100 0.51 65
IV.EPZF.HHZ. 2022-08-29T23:05:02.47 0.6 undecidable manual S 42 14.1747 135 0.95 38
IV.GALF.HHZ. 2022-08-29T23:05:02.71 0.6 undecidable manual S 263 16.1727 130 0.79 41
IV.EPOZ.HHZ. 2022-08-29T23:05:02.11 0.3 undecidable manual P 99 39.1275 105 0.21 71
IV.MUCR.HHZ. 2022-08-29T23:05:01.58 0.3 undecidable manual P 17 36.4413 106 0.07 73
IV.HLNI.HHZ. 2022-08-29T23:05:01.90 0.3 undecidable manual P 166 43.623 103 -0.68 61
IV.MSFR.HHZ. 2022-08-29T23:05:01.43 0.3 undecidable manual P 338 36.5412 106 -0.09 73
IV.ESCV.HHN. 2022-08-29T23:05:00.15 0.6 undecidable manual S 71 6.0939 158 -0.18 50
IV.EMSA.HHZ. 2022-08-29T23:05:00.87 0.3 undecidable manual P 146 30.9468 110 0.17 72
IV.ESVO.HHE. 2022-08-29T23:04:59.05 0.3 undecidable manual P 74 17.9709 127 0.12 75
IV.ESLN.HHZ. 2022-08-29T23:04:59.52 0.3 undecidable manual P 101 20.1687 123 0.32 71
IV.EMSG.HHZ. 2022-08-29T23:04:59.18 0.3 undecidable manual P 60 20.2686 122 -0.04 75
IV.EPZF.HHZ. 2022-08-29T23:04:58.35 0.1 undecidable manual P 42 14.1747 135 -0.12 100
IV.GALF.HHZ. 2022-08-29T23:04:58.43 0.1 undecidable manual P 263 16.1727 130 -0.28 97
IV.ECHR.HHE. 2022-08-29T23:04:58.47 0.3 undecidable manual P 108 15.1737 133 -0.12 75
IV.ESML.HNE. 2022-08-29T23:04:58.67 0.3 undecidable manual P 137 16.872 129 -0.11 75
IV.ECZM.HHN. 2022-08-29T23:04:57.80 0.3 undecidable manual P 89 13.5753 136 -0.62 66
IV.ESCV.HHN. 2022-08-29T23:04:56.88 0.3 undecidable manual P 71 6.0939 158 -0.9 60
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EPZF.HHE. ML:1.8 0.000502 0.42 AML other m 2022-08-29T23:05:03.25
IV.EPZF.HHN. ML:1.8 0.0004515 0.98 AML other m 2022-08-29T23:05:03.48
IV.GALF.HHN. ML:2.2 0.001065 1.24 AML other m 2022-08-29T23:05:04.80
IV.GALF.HHE. ML:2.2 0.0009525 1.6 AML other m 2022-08-29T23:05:04.07
IV.HLNI.HHE. ML:1.7 0.00013645 0.58 AML other m 2022-08-29T23:05:09.04
IV.MUCR.HHN. ML:1.4 0.00008274999999999999 1.18 AML other m 2022-08-29T23:05:09.08
IV.HLNI.HHN. ML:1.5 0.0000988 0.62 AML other m 2022-08-29T23:05:09.69
IV.MUCR.HHE. ML:1.4 0.00009395000000000001 0.3 AML other m 2022-08-29T23:05:09.79
IV.AIO.HHN. ML:1.3 0.000049000000000000005 0.46 AML other m 2022-08-29T23:05:13.22
IV.AIO.HHE. ML:1.4 0.00005285 1 AML other m 2022-08-29T23:05:14.35
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