Earthquake with magnitude of ML 1.8 on date 17-09-2021 and time 21:05:43 (Italy) in region 2 km NE Basicò (ME)

A magnitude ML 1.8 earthquake occured in region: 2 km NE Basicò (ME), on

  • 17-09-2021 19:05:43 (UTC)
  • 17-09-2021 21:05:43 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.072, 15.075 at 7 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
Basicò ME 2 612 612
Tripi ME 3 873 1485
Falcone ME 5 2808 4293
Mazzarrà Sant'Andrea ME 6 1531 5824
Furnari ME 6 3784 9608
Oliveri ME 6 2181 11789
Montalbano Elicona ME 7 2287 14076
Novara di Sicilia ME 8 1337 15413
Rodì Milici ME 9 2056 17469
San Piero Patti ME 10 2915 20384
Terme Vigliatore ME 11 7395 27779
Librizzi ME 11 1660 29439
Castroreale ME 12 2504 31943
Patti ME 12 13431 45374
Fondachelli-Fantina ME 13 1019 46393
Montagnareale ME 13 1615 48008
Raccuja ME 14 1041 49049
Barcellona Pozzo di Gotto ME 15 41583 90632
Roccella Valdemone ME 16 666 91298
Malvagna ME 17 733 92031
Floresta ME 17 485 92516
Ucria ME 17 1058 93574
Sant'Angelo di Brolo ME 18 3090 96664
Antillo ME 18 919 97583
Merì ME 19 2338 99921
Moio Alcantara ME 19 717 100638
Gioiosa Marea ME 20 7074 107712
Francavilla di Sicilia ME 20 3945 111657
Sinagra ME 20 2705 114362
Santa Lucia del Mela ME 20 4650 119012
Santa Domenica Vittoria ME 20 980 119992

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)
52 Km N of Acireale (52622 inhabitants)
63 Km N of Catania (314555 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 1.8 2021-09-17
19:05:43
38.072 15.0752 7 2021-09-17
19:10:38
Sala Sismica INGV-Roma 95553921
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-17 19:05:43 ± 0.07
Latitude 38.0720 ± 0.0036
Longitude 15.0752 ± 0.0046
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 95553921

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 381
Semi-minor axis of confidence ellipse (meter) 238
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 11
Circular confidence region, given by single value of horizontal uncertainty (meter) 380
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 27
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.39031
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 95553921
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-17 19:10:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PLAC.HHZ. 2021-09-17T19:06:21.47 3.0 undecidable manual S -0.86 0
IV.CSLB.HHZ. 2021-09-17T19:05:59.86 3.0 positive manual P 0.24 0
IV.MSRU.HHZ. 2021-09-17T19:05:58.10 0.6 undecidable manual S 60 0.3903 50 0.07 47
IV.MSFR.HHZ. 2021-09-17T19:05:57.84 0.6 undecidable manual S 264 0.3822 50 0.06 48
IV.GALF.HHZ. 2021-09-17T19:05:55.46 3.0 undecidable manual P 0.87 0
IV.IVPL.HHZ. 2021-09-17T19:05:55.55 0.6 undecidable manual S 346 0.313 102 0.1 48
IV.EMNR.HHZ. 2021-09-17T19:05:53.61 0.6 undecidable manual S 189 0.2581 104 0.23 47
IV.MILZ.HHZ. 2021-09-17T19:05:52.76 0.6 undecidable manual S 32 0.2338 105 0.28 47
IV.MPNC.HHZ. 2021-09-17T19:05:52.17 0.3 undecidable manual S 71 0.2311 106 -0.19 72
IV.MSFR.HHZ. 2021-09-17T19:05:51.26 0.1 negative manual P 264 0.3822 50 -0.34 90
IV.ECTS.HHZ. 2021-09-17T19:05:51.00 0.3 undecidable manual S 169 0.1934 108 0.02 75
IV.MSRU.HHZ. 2021-09-17T19:05:51.39 1.0 negative manual P 60 0.3903 50 -0.35 22
IV.IVPL.HHZ. 2021-09-17T19:05:50.72 0.3 positive manual P 346 0.313 102 0.48 66
IV.EMSG.HHZ. 2021-09-17T19:05:50.04 3.0 negative manual P 0.61 0
IV.EPZF.HHZ. 2021-09-17T19:05:49.94 3.0 negative manual P -0.17 0
IV.AIO.HHZ. 2021-09-17T19:05:49.73 0.3 undecidable manual S 129 0.1601 112 -0.05 75
IV.MUCR.HHZ. 2021-09-17T19:05:49.68 0.3 undecidable manual S 260 0.161 112 -0.13 73
IV.EPIT.HHZ. 2021-09-17T19:05:49.65 3.0 positive manual P 0.41 0
IV.EMNR.HHZ. 2021-09-17T19:05:49.80 0.1 undecidable manual P 189 0.2581 104 0.75 80
IV.MPNC.HHZ. 2021-09-17T19:05:48.38 0.1 negative manual P 71 0.2311 106 -0.08 98
IV.MILZ.HHZ. 2021-09-17T19:05:48.68 0.1 negative manual P 32 0.2338 105 0.15 96
IV.MCPD.HHZ. 2021-09-17T19:05:48.95 0.3 positive manual P 280 0.2752 103 -0.46 67
IV.ECTS.HHZ. 2021-09-17T19:05:47.79 0.1 negative manual P 169 0.1934 108 0.12 97
IV.AIO.HHZ. 2021-09-17T19:05:46.81 0.1 positive manual P 129 0.1601 112 -0.16 97
IV.MUCR.HHZ. 2021-09-17T19:05:46.96 0.1 positive manual P 260 0.161 112 -0.03 100
IV.NOV.HHZ. 2021-09-17T19:05:46.48 0.3 undecidable manual S 132 0.0657 135 -0.2 74
IV.NOV.HHZ. 2021-09-17T19:05:45.05 0.1 positive manual P 132 0.0657 135 -0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NOV.HHE. ML:2.8 0.0113 0.28 AML other m 2021-09-17T19:05:46.65
IV.NOV.HHN. ML:2.7 0.009475 0.28 AML other m 2021-09-17T19:05:46.70
IV.MUCR.HHE. ML:1.6 0.0003845 0.34 AML other m 2021-09-17T19:05:49.94
IV.MUCR.HHN. ML:1.9 0.000749 0.32 AML other m 2021-09-17T19:05:49.97
IV.AIO.HHE. ML:1.6 0.0003525 0.64 AML other m 2021-09-17T19:05:50.64
IV.ECTS.HHN. ML:1.8 0.0005045 0.28 AML other m 2021-09-17T19:05:51.64
IV.ECTS.HHE. ML:1.8 0.00052 0.84 AML other m 2021-09-17T19:05:51.35
IV.AIO.HHN. ML:1.7 0.000443 0.24 AML other m 2021-09-17T19:05:52.44
IV.MILZ.HHN. ML:1.6 0.000242 0.56 AML other m 2021-09-17T19:05:53.63
IV.MILZ.HHE. ML:2 0.000651 0.22 AML other m 2021-09-17T19:05:53.53
IV.EPIT.HHE. ML:2.1 0.000705 0.94 AML other m 2021-09-17T19:05:54.71
IV.MPNC.HHE. ML:1.5 0.0001825 1.4 AML other m 2021-09-17T19:05:54.79
IV.EMSG.HHE. ML:2 0.000526 1.64 AML other m 2021-09-17T19:05:55.07
IV.MPNC.HHN. ML:1.6 0.000223 0.64 AML other m 2021-09-17T19:05:56.01
IV.EMSG.HHN. ML:2 0.0004715 0.96 AML other m 2021-09-17T19:05:56.81
IV.EPZF.HHN. ML:1.8 0.0002925 0.46 AML other m 2021-09-17T19:05:57.48
IV.EPZF.HHE. ML:1.7 0.0002405 0.4 AML other m 2021-09-17T19:05:58.52
IV.EPIT.HHN. ML:2.1 0.000693 0.42 AML other m 2021-09-17T19:05:58.65
IV.IVPL.HHN. ML:2.1 0.0004895 1.6 AML other m 2021-09-17T19:05:58.06
IV.MSFR.HHN. ML:1.3 5.97E-5 1.12 AML other m 2021-09-17T19:05:59.97
IV.IVPL.HHE. ML:2 0.0003875 1.46 AML other m 2021-09-17T19:06:00.78
IV.MSFR.HHE. ML:1.3 6.33E-5 1.46 AML other m 2021-09-17T19:06:00.90
IV.MSRU.HHN. ML:1.4 7.27E-5 0.42 AML other m 2021-09-17T19:06:01.57
IV.MSRU.HHE. ML:1.5 0.000103 0.22 AML other m 2021-09-17T19:06:05.53
IV.GALF.HHN. ML:1.6 8.915E-5 1.04 AML other m 2021-09-17T19:06:11.09
IV.GALF.HHE. ML:1.9 0.000163 1.42 AML other m 2021-09-17T19:06:15.25
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