Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 30-07-2021 and time 02:51:46 (Italy) in region 2 km SW Mazzarrà Sant'Andrea (ME)

A magnitude ML 1.4 earthquake occured in region: 2 km SW Mazzarrà Sant'Andrea (ME), on

  • 30-07-2021 00:51:46 (UTC)
  • 30-07-2021 02:51:46 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.0780, 15.1210 at 37 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Mazzarrà Sant'Andrea ME 2 1531 1531
Furnari ME 3 3784 5315
Tripi ME 4 873 6188
Basicò ME 5 612 6800
Falcone ME 6 2808 9608
Rodì Milici ME 6 2056 11664
Novara di Sicilia ME 7 1337 13001
Oliveri ME 8 2181 15182
Terme Vigliatore ME 8 7395 22577
Castroreale ME 8 2504 25081
Montalbano Elicona ME 11 2287 27368
Fondachelli-Fantina ME 11 1019 28387
Barcellona Pozzo di Gotto ME 12 41583 69970
San Piero Patti ME 14 2915 72885
Librizzi ME 14 1660 74545
Merì ME 15 2338 76883
Patti ME 15 13431 90314
Antillo ME 16 919 91233
Santa Lucia del Mela ME 16 4650 95883
Montagnareale ME 16 1615 97498
San Filippo del Mela ME 17 7115 104613
Raccuja ME 19 1041 105654
Malvagna ME 19 733 106387
Roccella Valdemone ME 19 666 107053
Mandanici ME 19 601 107654
Milazzo ME 19 31646 139300
Francavilla di Sicilia ME 20 3945 143245
Gualtieri Sicaminò ME 20 1807 145052
Pace del Mela ME 20 6239 151291

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km W of Messina (238439 inhabitants)
46 Km W of Reggio di Calabria (183035 inhabitants)
52 Km N of Acireale (52622 inhabitants)
64 Km N of Catania (314555 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 2021-07-30
00:51:46		 38.0775 15.1207 37 2021-07-30
00:57:57		 Sala Sismica INGV-Roma 93380521
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-30 00:51:46 ± 0.11
Latitude 38.0775 ± 0.0072
Longitude 15.1207 ± 0.0091
Depth (km) 37 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 93380521

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 756
Semi-minor axis of confidence ellipse (meter) 754
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 107
Circular confidence region, given by single value of horizontal uncertainty (meter) 760.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 71
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 28
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) 0.79680
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 16
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 93380521
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-30 00:57:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CDRU.HHZ. 2021-07-30T00:52:32.98 3.0 undecidable manual Pg 7.33 0
IX.NSC3.EHZ.02 2021-07-30T00:52:26.96 3.0 undecidable manual Pn -3.53 0
IV.MTGR.HHZ. 2021-07-30T00:52:19.28 3.0 positive manual Pg 1.12 0
IV.HCRL.HHZ. 2021-07-30T00:52:13.40 0.6 undecidable manual S 185 88.4448 54 0.54 39
IV.MSFR.HHE. 2021-07-30T00:52:03.74 0.6 undecidable manual S 264 46.4202 125 0.17 47
IV.MSRU.HHZ. 2021-07-30T00:52:02.39 0.6 undecidable manual S 58 39.627 130 0.28 46
IV.IVUG.HHE. 2021-07-30T00:52:01.76 0.6 undecidable manual S 342 37.2294 132 0.14 48
IV.HCRL.HHZ. 2021-07-30T00:52:01.84 0.3 undecidable manual P 185 88.4448 54 0.15 64
IV.IVPL.HHZ. 2021-07-30T00:52:01.79 0.6 undecidable manual S 340 35.3424 133 0.54 44
IV.IVGP.HHE. 2021-07-30T00:52:01.69 0.6 undecidable manual S 339 38.0286 131 -0.1 47
IV.MCPD.HHZ. 2021-07-30T00:52:00.69 0.6 undecidable manual S 278 34.3434 134 -0.37 45
IV.HLNI.HHZ. 2021-07-30T00:52:00.61 0.3 undecidable manual P 195 83.7495 54 -0.5 61
IV.MILZ.HHZ. 2021-07-30T00:51:59.31 0.6 undecidable manual S 24 23.5542 145 0.12 49
IV.MUCR.HHZ. 2021-07-30T00:51:59.08 0.6 undecidable manual S 260 21.867 147 0.14 49
IV.IFIL.HHE. 2021-07-30T00:51:59.10 0.3 undecidable manual P 319 71.8725 54 -0.53 61
IV.MPNC.HHZ. 2021-07-30T00:51:59.20 0.6 undecidable manual S 69 21.6672 147 0.29 47
IV.AIO.HHZ. 2021-07-30T00:51:57.46 0.6 undecidable manual S 140 15.3735 156 -0.64 44
IV.NOV.HHE. 2021-07-30T00:51:56.90 0.6 undecidable manual S 166 5.6943 171 -0.46 47
IV.MSFR.HHE. 2021-07-30T00:51:56.55 0.3 undecidable manual P 264 46.4202 125 0.23 69
IV.EPIT.HHE. 2021-07-30T00:51:55.39 0.3 undecidable manual P 191 30.0477 138 0.97 54
IV.IVPL.HHZ. 2021-07-30T00:51:55.15 0.1 undecidable manual P 340 35.3424 133 0.16 95
IV.IVGP.HHE. 2021-07-30T00:51:55.16 0.3 undecidable manual P 339 38.0286 131 -0.14 71
IV.MSRU.HHZ. 2021-07-30T00:51:55.59 0.3 undecidable manual P 58 39.627 130 0.11 71
IV.IVUG.HHE. 2021-07-30T00:51:55.12 0.3 undecidable manual P 342 37.2294 132 -0.08 72
IV.MCPD.HHZ. 2021-07-30T00:51:54.78 0.3 undecidable manual P 278 34.3434 134 -0.1 72
IV.MPNC.HHZ. 2021-07-30T00:51:53.68 0.1 undecidable manual P 69 21.6672 147 0.05 99
IV.MILZ.HHZ. 2021-07-30T00:51:53.80 0.1 positive manual P 24 23.5542 145 0 100
IV.ECTS.HHE. 2021-07-30T00:51:53.44 0.3 undecidable manual P 180 21.6672 147 -0.19 73
IV.MUCR.HHZ. 2021-07-30T00:51:53.85 0.3 undecidable manual P 260 21.867 147 0.2 72
IV.NOV.HHE. 2021-07-30T00:51:52.56 0.1 undecidable manual P 166 5.6943 171 -0.18 100
IV.AIO.HHZ. 2021-07-30T00:51:52.87 0.1 undecidable manual P 140 15.3735 156 -0.3 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.AIO.HHN. ML:1.3 0.0000769 0.24 AML other m 2021-07-30T00:51:58.51
IV.AIO.HHE. ML:1.1 0.0000435 0.4 AML other m 2021-07-30T00:51:58.63
IV.MPNC.HHN. ML:1.6 0.00014649999999999998 1.04 AML other m 2021-07-30T00:51:59.61
IV.MILZ.HHE. ML:2.0 0.00028349999999999995 0.64 AML other m 2021-07-30T00:51:59.29
IV.MUCR.HHE. ML:1.2 0.000051200000000000004 0.28 AML other m 2021-07-30T00:51:59.90
IV.MUCR.HHN. ML:1.2 0.00004795 0.34 AML other m 2021-07-30T00:51:59.77
IV.MILZ.HHN. ML:1.5 0.00010700000000000001 1.06 AML other m 2021-07-30T00:52:00.72
IV.MPNC.HHE. ML:1.9 0.0002515 0.32 AML other m 2021-07-30T00:52:00.96
IV.MCPD.HHN. ML:1.1 0.00003465 1.82 AML other m 2021-07-30T00:52:01.01
IV.MCPD.HHE. ML:1.2 0.00004215 1.08 AML other m 2021-07-30T00:52:01.13
IV.IVPL.HHN. ML:1.7 0.000123 0.36 AML other m 2021-07-30T00:52:02.46
IV.MSRU.HHN. ML:1.3 0.00004725 0.18 AML other m 2021-07-30T00:52:02.72
IV.IVPL.HHE. ML:1.6 0.0001105 0.54 AML other m 2021-07-30T00:52:03.62
IV.MSRU.HHE. ML:1.2 0.000036200000000000006 0.94 AML other m 2021-07-30T00:52:03.43
IV.HCRL.HHE. ML:1.7 0.00005005 1.4 AML other m 2021-07-30T00:52:14.70
IV.HCRL.HHN. ML:1.5 0.0000352 0.64 AML other m 2021-07-30T00:52:14.33
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