Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 06-04-2021 and time 16:46:01 (Italy) in region 5 km W Canicattini Bagni (SR)

A magnitude ML 2.0 earthquake occured in region: 5 km W Canicattini Bagni (SR), on

  • 06-04-2021 14:46:01 (UTC)
  • 06-04-2021 16:46:01 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.0180, 15.0150 at 25 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
Canicattini Bagni SR 5 7109 7109
Palazzolo Acreide SR 11 8808 15917
Cassaro SR 12 821 16738
Ferla SR 13 2523 19261
Solarino SR 13 8091 27352
Buscemi SR 14 1051 28403
Floridia SR 14 22762 51165
Noto SR 15 23913 75078
Avola SR 16 31708 106786
Sortino SR 16 8690 115476
Buccheri SR 19 1999 117475

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km W of Siracusa (122291 inhabitants)
27 Km E of Ragusa (73313 inhabitants)
29 Km NE of Modica (54633 inhabitants)
43 Km E of Vittoria (63339 inhabitants)
54 Km S of Catania (314555 inhabitants)
68 Km S of Acireale (52622 inhabitants)
68 Km E of Gela (75827 inhabitants)
100 Km SE of Caltanissetta (63360 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 2.0 2021-04-06
14:46:01		 37.0182 15.0153 25 2021-07-12
16:55:08		 Bollettino Sismico Italiano INGV 89399371
Reviewed
Rev100 		ML 2.2 2021-04-06
14:46:01		 37.0098 15.0083 25 2021-04-06
14:50:40		 Sala Sismica INGV-Roma 88837941
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-06 14:46:01 ± 0.2
Latitude 37.0182 ± 0.0045
Longitude 15.0153 ± 0.0079
Depth (km) 25 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 89399371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 721
Semi-minor axis of confidence ellipse (meter) 214
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 259
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) 58
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.34894
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 89399371
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-04-23 13:52:39

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 88837941
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-06 14:50:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MUCR.HHZ. 2021-04-06T14:46:37.67 3.0 undecidable manual S 0.16 0
IV.HLNI.HHZ. 2021-04-06T14:46:15.02 0.3 undecidable manual S 341 38.7279 116 -0.47 66
IV.HVZN.HHZ. 2021-04-06T14:46:14.47 0.1 undecidable manual S 304 31.9458 121 0.59 83
IV.HPAC.HHE. 2021-04-06T14:46:14.78 0.3 undecidable manual S 177 34.4433 119 0.34 68
IV.HCRL.HHZ. 2021-04-06T14:46:13.40 0.1 undecidable manual S 3 29.4483 124 0.09 97
IV.ISPIC.EHZ. 2021-04-06T14:46:12.65 0.1 undecidable manual S 201 28.1496 125 -0.39 92
IV.HSRS.HNN. 2021-04-06T14:46:11.24 0.3 undecidable manual S 66 20.0688 136 -0.15 72
IV.HMDC.HHZ. 2021-04-06T14:46:11.13 0.3 undecidable manual S 252 21.5673 134 -0.55 67
IV.SSY.HHZ. 2021-04-06T14:46:10.93 0.1 undecidable manual S 18 16.3725 142 0.2 97
IV.HPAC.HHE. 2021-04-06T14:46:09.40 0.1 undecidable manual P 177 34.4433 119 0.29 91
IV.HLNI.HHZ. 2021-04-06T14:46:09.49 0.1 undecidable manual P 341 38.7279 116 -0.22 93
IV.HAVL.HHZ. 2021-04-06T14:46:09.97 0.1 undecidable manual S 124 11.4774 152 -0.06 100
IV.HVZN.HHZ. 2021-04-06T14:46:08.88 0.1 undecidable manual P 304 31.9458 121 0.1 95
IV.HAGA.HHZ. 2021-04-06T14:46:08.72 0.1 undecidable manual P 23 32.0457 121 -0.08 97
IV.ISPIC.EHZ. 2021-04-06T14:46:08.14 0.1 undecidable manual P 201 28.1496 125 -0.16 97
IV.HCRL.HHZ. 2021-04-06T14:46:08.56 0.1 negative manual P 3 29.4483 124 0.1 96
IV.SSY.HHZ. 2021-04-06T14:46:07.13 0.1 negative manual P 18 16.3725 142 0.16 97
IV.HSRS.HNN. 2021-04-06T14:46:07.40 0.1 undecidable manual P 66 20.0688 136 0.05 99
IV.HMDC.HHZ. 2021-04-06T14:46:07.39 0.1 undecidable manual P 252 21.5673 134 -0.12 98
IV.HAVL.HHZ. 2021-04-06T14:46:06.63 0.1 undecidable manual P 124 11.4774 152 0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HAVL.HHN. ML:2.3 0.001128598 0.0832 AML other m 2021-04-06T14:46:11.08
IV.SSY.HHE. ML:2.5 0.0016148675 0.1024 AML other m 2021-04-06T14:46:11.19
IV.HMDC.HNE. ML:1.9 0.00033843915 0.16 AML other m 2021-04-06T14:46:11.54
IV.HMDC.HHE. ML:2.0 0.00042468635 0.1408 AML other m 2021-04-06T14:46:11.54
IV.HMDC.HHN. ML:2.2 0.0007270000000000001 0.08 AML other m 2021-04-06T14:46:11.54
IV.HMDC.HNN. ML:2.0 0.00047050000000000005 0.06 AML other m 2021-04-06T14:46:11.54
IV.HAVL.HHE. ML:2.0 0.00068251425 0.0576 AML other m 2021-04-06T14:46:10.65
IV.HCRL.HHN. ML:2.2 0.0006635 0.1 AML other m 2021-04-06T14:46:13.57
IV.HCRL.HHE. ML:2.2 0.0005815547 0.1152 AML other m 2021-04-06T14:46:13.64
IV.SSY.HHN. ML:2.8 0.003125 0.32 AML other m 2021-04-06T14:46:14.03
IV.HVZN.HHE. ML:2.2 0.0006332759 0.2176 AML other m 2021-04-06T14:46:14.60
IV.HLNI.HHN. ML:1.8 0.0001968942 0.256 AML other m 2021-04-06T14:46:15.39
IV.HLNI.HHE. ML:1.7 0.00015625025 0.16 AML other m 2021-04-06T14:46:15.42
IV.HVZN.HHN. ML:2.1 0.0004089576 0.16 AML other m 2021-04-06T14:46:16.79
IV.ISPIC.EHE. ML:1.6 0.00017597037 0.1408 AML other m 2021-04-06T14:46:12.86
IV.ISPIC.HNE. ML:1.7 0.00018211650000000002 0.1408 AML other m 2021-04-06T14:46:12.86
IV.ISPIC.EHN. ML:1.6 0.000169656765 0.2624 AML other m 2021-04-06T14:46:12.83
IV.ISPIC.HNN. ML:1.7 0.0002135247 0.256 AML other m 2021-04-06T14:46:12.83
IV.HVZN.HNN. ML:2.0 0.00038057985 0.1664 AML other m 2021-04-06T14:46:16.88
IV.HVZN.HNE. ML:2.2 0.0005843893500000001 0.2304 AML other m 2021-04-06T14:46:14.60
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
Waveforms Seismic signals in miniseed + resp format Download