Earthquake with magnitude of ML 1.7 on date 25-06-2021 and time 02:40:44 (Italy) in region 2 km S Ramacca (CT)

A magnitude ML 1.7 earthquake occured in region: 2 km S Ramacca (CT), on

  • 25-06-2021 00:40:44 (UTC)
  • 25-06-2021 02:40:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.3650, 14.6870 at 11 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Ramacca CT 2 10894 10894
Palagonia CT 7 16608 27502
Mineo CT 11 5159 32661
Militello in Val di Catania CT 14 7443 40104
Castel di Iudica CT 15 4625 44729
Scordia CT 16 17095 61824
Grammichele CT 17 13418 75242
Raddusa CT 18 3178 78420

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km W of Catania (314555 inhabitants)
48 Km N of Vittoria (63339 inhabitants)
49 Km N of Ragusa (73313 inhabitants)
51 Km SW of Acireale (52622 inhabitants)
51 Km NE of Gela (75827 inhabitants)
57 Km N of Modica (54633 inhabitants)
57 Km E of Caltanissetta (63360 inhabitants)
64 Km NW of Siracusa (122291 inhabitants)
98 Km E of Agrigento (59770 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 1.7 2021-06-25
00:40:44
37.365 14.6868 11 2021-12-29
11:12:26
Bollettino Sismico Italiano INGV 95108361
Reviewed
Rev100
ML 1.8 2021-06-25
00:40:44
37.3575 14.703 21 2021-06-25
00:51:24
Sala Sismica INGV-Roma 91846541
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-06-25 00:40:44 ± 0.16
Latitude 37.3650 ± 0.0081
Longitude 14.6868 ± 0.0079
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 95108361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 910
Semi-minor axis of confidence ellipse (meter) 296
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 171
Circular confidence region, given by single value of horizontal uncertainty (meter) 910.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 111
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.38
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.71316
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 26
Type of magnitude ML
Reference to an origin 91846541
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-06-25 00:51:24

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 24
Type of magnitude ML
Reference to an origin 95108361
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-09-06 11:34:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MFNL.HHZ. 2021-06-25T00:41:09.56 3.0 undecidable manual P -0.29 0
IV.PETRA.HHZ. 2021-06-25T00:41:08.57 3.0 undecidable manual S 0.24 0
IV.HAVL.HHZ. 2021-06-25T00:41:03.36 0.3 undecidable manual S 139 59.1963 50 0.51 63
IV.HMDC.HHZ. 2021-06-25T00:40:59.87 0.6 undecidable manual S 169 45.8208 50 0.59 42
IV.HAGA.HHZ. 2021-06-25T00:40:58.45 0.3 undecidable manual S 102 42.2244 50 0.13 71
IV.HVIT.HHZ. 2021-06-25T00:40:58.92 0.3 undecidable manual S 200 43.8228 50 0.18 70
IV.ACATE.EHZ. 2021-06-25T00:40:58.05 0.6 undecidable manual S 204 41.2254 50 -0.01 49
IV.SSY.HHZ. 2021-06-25T00:40:58.53 0.6 undecidable manual S 124 41.2254 50 0.49 44
IV.HPAC.HHZ. 2021-06-25T00:40:57.95 0.3 undecidable manual P 157 79.1652 50 -0.22 65
IV.RAFF.HHZ. 2021-06-25T00:40:56.62 0.6 undecidable manual S 241 32.745 50 0.84 39
IV.HCRL.HHZ. 2021-06-25T00:40:55.77 0.3 undecidable manual S 106 31.8459 50 0.23 71
IT.LNT.HGZ. 2021-06-25T00:40:54.92 0.3 undecidable manual S 107 29.0487 50 0.11 73
IV.HAVL.HHZ. 2021-06-25T00:40:54.77 0.1 undecidable manual P 139 59.1963 50 -0.32 88
IV.CPTP.HHZ. 2021-06-25T00:40:54.02 0.3 undecidable manual P 276 46.4202 50 0.89 56
IV.HVZN.HHZ. 2021-06-25T00:40:53.19 0.3 undecidable manual S 173 20.868 50 0.57 66
IV.HVIT.HHZ. 2021-06-25T00:40:52.11 0.1 undecidable manual P 200 43.8228 50 -0.61 84
IV.SSY.HHZ. 2021-06-25T00:40:52.18 0.3 undecidable manual P 124 41.2254 50 -0.14 71
IV.HMDC.HHZ. 2021-06-25T00:40:52.63 0.3 undecidable manual P 169 45.8208 50 -0.4 67
IV.HAGA.HHZ. 2021-06-25T00:40:52.00 0.3 undecidable manual P 102 42.2244 50 -0.48 66
IV.GALF.HHE. 2021-06-25T00:40:51.98 0.3 undecidable manual P 345 39.7269 50 -0.12 71
IV.ACATE.EHZ. 2021-06-25T00:40:51.74 0.3 undecidable manual P 204 41.2254 50 -0.59 64
IV.CAGR.HHE. 2021-06-25T00:40:51.94 0.3 undecidable manual P 330 32.9448 50 0.9 57
IV.HLNI.HHZ. 2021-06-25T00:40:51.72 0.3 undecidable manual S 96 16.4724 123 0.43 70
IV.RAFF.HHZ. 2021-06-25T00:40:50.58 0.1 undecidable manual P 241 32.745 50 -0.43 91
IT.LNT.HGZ. 2021-06-25T00:40:50.05 0.6 undecidable manual P 107 29.0487 50 -0.4 46
IV.HCRL.HHZ. 2021-06-25T00:40:50.48 0.1 undecidable manual P 106 31.8459 50 -0.39 91
IV.HVZN.HHZ. 2021-06-25T00:40:49.06 0.1 undecidable manual P 173 20.868 50 -0.12 99
IV.HLNI.HHZ. 2021-06-25T00:40:48.31 0.1 undecidable manual P 96 16.4724 123 -0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HLNI.HHE. ML:1.9 0.000675 0.24 AML other m 2021-06-25T00:40:51.97
IV.HLNI.HHN. ML:2.1 0.001049 0.16 AML other m 2021-06-25T00:40:52.05
IV.HVZN.HHN. ML:1.5 0.00023299999999999997 0.26 AML other m 2021-06-25T00:40:54.28
IV.HVZN.HHE. ML:1.4 0.0001905 0.34 AML other m 2021-06-25T00:40:54.55
IV.HVZN.HNE. ML:1.4 0.0001785 0.34 AML other m 2021-06-25T00:40:54.55
IV.HCRL.HHN. ML:1.7 0.00023349999999999998 0.14 AML other m 2021-06-25T00:40:56.29
IV.HCRL.HHE. ML:1.7 0.0002155 0.36 AML other m 2021-06-25T00:40:56.31
IV.HVZN.HNN. ML:1.9 0.000524 0.6 AML other m 2021-06-25T00:40:57.33
IV.RAFF.HHN. ML:1.6 0.000191 1.02 AML other m 2021-06-25T00:40:57.04
IV.RAFF.HHE. ML:1.7 0.000222 0.3 AML other m 2021-06-25T00:40:57.57
IV.HAGA.HHN. ML:1.5 0.0000942 0.72 AML other m 2021-06-25T00:40:58.62
IV.HAGA.HHE. ML:1.8 0.000179 1.16 AML other m 2021-06-25T00:40:59.66
IV.HVIT.HHN. ML:1.9 0.0002475 0.18 AML other m 2021-06-25T00:40:59.17
IV.HVIT.HHE. ML:1.7 0.0001385 1.44 AML other m 2021-06-25T00:40:59.02
IV.ACATE.EHN. ML:1.6 0.000127 0.7 AML other m 2021-06-25T00:40:59.39
IV.HMDC.HHN. ML:1.6 0.00013000000000000002 1.08 AML other m 2021-06-25T00:41:00.91
IV.HMDC.HHE. ML:1.6 0.00011399999999999999 0.62 AML other m 2021-06-25T00:41:00.30
IV.ACATE.EHE. ML:1.7 0.0001665 0.4 AML other m 2021-06-25T00:41:01.31
IV.HAVL.HHN. ML:1.9 0.0001545 1.3 AML other m 2021-06-25T00:41:05.91
IV.CPTP.HHN. ML:1.5 0.0000857 1.1 AML other m 2021-06-25T00:41:05.64
IV.HAVL.HHE. ML:1.7 0.00010705 0.3 AML other m 2021-06-25T00:41:05.92
IV.CPTP.HHE. ML:1.4 0.0000665 1.28 AML other m 2021-06-25T00:41:06.74
IV.HPAC.HHE. ML:1.9 0.00011784999999999999 1.1 AML other m 2021-06-25T00:41:09.97
IV.HPAC.HHN. ML:1.9 0.00010625000000000001 1.3 AML other m 2021-06-25T00:41:10.22
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