Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 21-09-2020 and time 03:01:27 (UTC) in region 2 km E Basicò (ME)

A magnitude ML 1.5 earthquake occured in region: 2 km E Basicò (ME), on

  • 21-09-2020 03:01:27 (UTC)
  • 21-09-2020 05:01:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.0610, 15.0800 at 8 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
Basicò ME 2 612 612
Tripi ME 2 873 1485
Mazzarrà Sant'Andrea ME 6 1531 3016
Falcone ME 6 2808 5824
Furnari ME 6 3784 9608
Novara di Sicilia ME 7 1337 10945
Montalbano Elicona ME 7 2287 13232
Oliveri ME 7 2181 15413
Rodì Milici ME 10 2056 17469
San Piero Patti ME 10 2915 20384
Terme Vigliatore ME 11 7395 27779
Librizzi ME 11 1660 29439
Fondachelli-Fantina ME 12 1019 30458
Castroreale ME 12 2504 32962
Patti ME 13 13431 46393
Montagnareale ME 14 1615 48008
Raccuja ME 15 1041 49049
Roccella Valdemone ME 15 666 49715
Barcellona Pozzo di Gotto ME 16 41583 91298
Malvagna ME 16 733 92031
Floresta ME 17 485 92516
Antillo ME 17 919 93435
Ucria ME 17 1058 94493
Moio Alcantara ME 18 717 95210
Sant'Angelo di Brolo ME 18 3090 98300
Francavilla di Sicilia ME 18 3945 102245
Merì ME 19 2338 104583
Santa Domenica Vittoria ME 19 980 105563
Santa Lucia del Mela ME 20 4650 110213
Motta Camastra ME 20 845 111058
Castiglione di Sicilia CT 20 3215 114273

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km W of Messina (238439 inhabitants)
50 Km W of Reggio di Calabria (183035 inhabitants)
50 Km N of Acireale (52622 inhabitants)
62 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
Bulletin
Rev1000 		ML 1.5 2020-09-21
03:01:27		 38.0613 15.08 8 2021-02-26
14:55:55		 Bollettino Sismico Italiano INGV 83129131
Reviewed
Rev100 		ML 1.4 2020-09-21
03:01:27		 38.0608 15.079 7 2020-09-21
03:06:09		 Sala Sismica INGV-Roma 83086171
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-21 03:01:27 ± 0.06
Latitude 38.0613 ± 0.0036
Longitude 15.0800 ± 0.0046
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 83129131

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 370
Semi-minor axis of confidence ellipse (meter) 340
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 44
Circular confidence region, given by single value of horizontal uncertainty (meter) 370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 94
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.05576
Epicentral distance of station farthest from the epicenter (degree) 0.38491
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.1
Num. used stations 10
Type of magnitude ML
Reference to an origin 83129131
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-09-22 11:37:49

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 83086171
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-21 03:06:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MPNC.HHE. 2020-09-21T03:01:36.96 0.6 undecidable manual S 68 25.6521 107 0.03 49
IV.IVUG.HHZ. 2020-09-21T03:01:35.42 0.3 undecidable manual P 348 38.0286 50 0.07 72
IV.IVPL.HHZ. 2020-09-21T03:01:35.12 0.1 undecidable manual P 346 36.0417 102 0.1 95
IV.IVGP.HHN. 2020-09-21T03:01:35.39 0.1 undecidable manual P 344 38.628 50 -0.06 96
IV.ECTS.HHZ. 2020-09-21T03:01:35.42 0.3 undecidable manual S 170 20.2686 111 0.27 71
IV.MSFR.HHZ. 2020-09-21T03:01:35.84 0.1 undecidable manual P 266 42.7239 50 -0.25 91
IV.AIO.HHZ. 2020-09-21T03:01:34.37 0.3 undecidable manual S 127 16.6722 115 0.34 70
IV.MUCR.HHZ. 2020-09-21T03:01:34.58 0.1 undecidable manual S 264 18.0708 113 0.1 98
IV.MILZ.HHZ. 2020-09-21T03:01:33.44 0.1 undecidable manual P 30 26.751 106 0.22 95
IV.ECTS.HHZ. 2020-09-21T03:01:32.01 0.1 undecidable manual P 170 20.2686 111 0.03 99
IV.MPNC.HHE. 2020-09-21T03:01:32.90 0.3 undecidable manual P 68 25.6521 107 -0.1 73
IV.AIO.HHZ. 2020-09-21T03:01:31.21 0.1 positive manual P 127 16.6722 115 -0.12 98
IV.MUCR.HHZ. 2020-09-21T03:01:31.57 0.1 undecidable manual P 264 18.0708 113 -0.02 100
IV.NOV.HHZ. 2020-09-21T03:01:30.74 0.1 undecidable manual S 127 6.1938 141 -0.34 95
IV.NOV.HHZ. 2020-09-21T03:01:29.51 0.1 positive manual P 127 6.1938 141 -0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MUCR.HHN. ML:1.4 0.00022950000000000002 0.18 AML other m 2020-09-21T03:01:34.91
IV.AIO.HHN. ML:1.5 0.0002985 1.04 AML other m 2020-09-21T03:01:35.52
IV.AIO.HHE. ML:1.4 0.00026000000000000003 1.54 AML other m 2020-09-21T03:01:35.84
IV.ECTS.HHN. ML:1.5 0.0002485 0.76 AML other m 2020-09-21T03:01:35.59
IV.MUCR.HHE. ML:1.2 0.000125 1.02 AML other m 2020-09-21T03:01:35.96
IV.ECTS.HHE. ML:1.4 0.0001905 0.46 AML other m 2020-09-21T03:01:36.53
IV.MILZ.HHN. ML:1.4 0.00013000000000000002 1.14 AML other m 2020-09-21T03:01:38.67
IV.MILZ.HHE. ML:1.7 0.0003015 0.88 AML other m 2020-09-21T03:01:38.72
IV.IVPL.HHN. ML:1.6 0.00013800000000000002 0.4 AML other m 2020-09-21T03:01:43.63
IV.IVPL.HHE. ML:1.4 0.000105 1.12 AML other m 2020-09-21T03:01:44.70
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