Earthquake with magnitude of ML 1.9 on date 01-07-2021 and time 19:02:06 (Italy) in region Costa Catanese (Catania)

A magnitude ML 1.9 earthquake occured in region: Costa Catanese (Catania), on

  • 01-07-2021 17:02:06 (UTC)
  • 01-07-2021 19:02:06 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.486, 15.329 at 10 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
Aci Castello CT 18 18723 18723

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km SE of Acireale (52622 inhabitants)
21 Km E of Catania (314555 inhabitants)
47 Km N of Siracusa (122291 inhabitants)
75 Km SW of Reggio di Calabria (183035 inhabitants)
81 Km S of Messina (238439 inhabitants)
82 Km NE of Ragusa (73313 inhabitants)
86 Km NE of Modica (54633 inhabitants)
92 Km NE of Vittoria (63339 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.9 2021-07-01
17:02:06
37.486 15.3293 10 2021-07-01
17:08:53
Sala Sismica INGV-Roma 92110521
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-01 17:02:06 ± 0.19
Latitude 37.4860 ± 0.0045
Longitude 15.3293 ± 0.0170
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 92110521

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1512
Semi-minor axis of confidence ellipse (meter) 133
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 92
Circular confidence region, given by single value of horizontal uncertainty (meter) 1510
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 222
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.68259
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 19
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 92110521
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-01 17:08:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.GALF.HHZ. 2021-07-01T17:02:29.63 0.6 undecidable manual S 291 0.6448 50 1.28 28
IV.HVZN.HHZ. 2021-07-01T17:02:26.14 0.6 undecidable manual S 238 0.5765 50 -0.2 46
IV.HAVL.HHZ. 2021-07-01T17:02:25.96 0.3 undecidable manual S 197 0.5513 50 0.37 65
IV.HSRS.HHE. 2021-07-01T17:02:21.47 0.6 undecidable manual S 192 0.402 50 0.3 46
IV.SSY.HHZ. 2021-07-01T17:02:21.16 0.6 undecidable manual S 212 0.3858 50 0.47 44
IV.RAFF.HHZ. 2021-07-01T17:02:21.55 3.0 positive manual P 0.38 0
IV.HLNI.HHZ. 2021-07-01T17:02:20.00 0.6 undecidable manual S 249 0.3885 50 -0.75 41
IV.GALF.HHZ. 2021-07-01T17:02:19.33 0.6 positive manual P 291 0.6448 50 0.2 44
IV.HMDC.HHZ. 2021-07-01T17:02:19.18 0.6 undecidable manual P 220 0.6826 50 -0.6 40
IV.HCRL.HHZ. 2021-07-01T17:02:18.56 0.6 undecidable manual S 229 0.3112 50 0.09 48
IV.HAVL.HHZ. 2021-07-01T17:02:17.40 0.1 positive manual P 197 0.5513 50 -0.13 92
IV.HVZN.HHZ. 2021-07-01T17:02:17.61 0.3 negative manual P 238 0.5765 50 -0.35 66
IV.HAGA.HHZ. 2021-07-01T17:02:16.95 0.6 undecidable manual S 215 0.2437 50 0.47 45
IV.ESCV.HHZ. 2021-07-01T17:02:16.22 0.6 positive manual P 303 0.4838 50 -0.15 47
IV.EMNR.HHE. 2021-07-01T17:02:15.01 0.1 undecidable manual P 324 0.4083 50 -0.08 96
IV.EPIT.HHZ. 2021-07-01T17:02:14.84 0.3 positive manual P 327 0.3903 50 0.06 71
IV.HSRS.HHE. 2021-07-01T17:02:14.86 0.6 undecidable manual P 192 0.402 50 -0.12 48
IV.HLNI.HHZ. 2021-07-01T17:02:14.08 0.1 positive manual P 249 0.3885 50 -0.66 84
IV.ECBD.HHE. 2021-07-01T17:02:14.11 0.1 undecidable manual P 327 0.3516 50 0 97
IV.SSY.HHZ. 2021-07-01T17:02:14.66 0.1 positive manual P 212 0.3858 50 -0.04 97
IV.EMPL.HHZ. 2021-07-01T17:02:13.53 0.6 positive manual P 304 0.3435 50 -0.45 45
IV.EMFO.HHE. 2021-07-01T17:02:13.28 0.1 undecidable manual P 323 0.313 50 -0.18 96
IV.ENIC.HHE. 2021-07-01T17:02:13.47 0.1 undecidable manual P 301 0.2842 50 0.51 87
IV.HCRL.HHZ. 2021-07-01T17:02:13.39 0.6 undecidable manual P 229 0.3112 50 -0.03 49
IV.ESAL.HHE. 2021-07-01T17:02:13.61 0.1 undecidable manual P 330 0.3103 50 0.2 94
IV.EVRN.HHE. 2021-07-01T17:02:12.64 0.1 undecidable manual P 323 0.2545 50 0.19 95
IV.HAGA.HHZ. 2021-07-01T17:02:12.40 0.1 positive manual P 215 0.2437 50 0.12 97
IV.EPOZ.HHE. 2021-07-01T17:02:11.69 0.1 undecidable manual P 329 0.2167 112 -0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HAGA.HHE. ML:1.9 0.000423 0.22 AML other m 2021-07-01T17:02:17.21
IV.HAGA.HHN. ML:1.6 0.000215 0.06 AML other m 2021-07-01T17:02:17.95
IV.HCRL.HHN. ML:1.7 0.0002085 1.04 AML other m 2021-07-01T17:02:18.42
IV.HCRL.HHE. ML:1.7 0.0002245 1.88 AML other m 2021-07-01T17:02:18.02
IV.HVZN.HHE. ML:1.8 0.00011431455 0.2816 AML other m 2021-07-01T17:02:28.57
IV.HLNI.HHN. ML:1.7 0.0001695 0.74 AML other m 2021-07-01T17:02:20.85
IV.HLNI.HHE. ML:1.6 0.000123 1.16 AML other m 2021-07-01T17:02:21.03
IV.SSY.HHE. ML:2.3 0.0006965 0.54 AML other m 2021-07-01T17:02:21.28
IV.SSY.HHN. ML:2.6 0.00122 0.1 AML other m 2021-07-01T17:02:21.86
IV.HAVL.HHE. ML:2.2 0.0003075 0.1 AML other m 2021-07-01T17:02:26.43
IV.HAVL.HHN. ML:2.2 0.000325 0.24 AML other m 2021-07-01T17:02:26.70
IV.HVZN.HHN. ML:2.1 0.00022 1.44 AML other m 2021-07-01T17:02:27.92
IV.GALF.HHN. ML:1.8 0.0001005 1.02 AML other m 2021-07-01T17:02:30.37
IV.GALF.HHE. ML:1.7 8.175E-5 1.26 AML other m 2021-07-01T17:02:34.83
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