Earthquake with magnitude of ML 1.2 on date 23-07-2021 and time 07:22:16 (Italy) in region 2 km NE Montalbano Elicona (ME)

A magnitude ML 1.2 earthquake occured in region: 2 km NE Montalbano Elicona (ME), on

  • 23-07-2021 05:22:16 (UTC)
  • 23-07-2021 07:22:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.037, 15.028 at 14 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
Montalbano Elicona ME 2 2287 2287
Basicò ME 4 612 2899
San Piero Patti ME 6 2915 5814
Tripi ME 7 873 6687
Librizzi ME 9 1660 8347
Novara di Sicilia ME 9 1337 9684
Falcone ME 10 2808 12492
Oliveri ME 10 2181 14673
Raccuja ME 10 1041 15714
Mazzarrà Sant'Andrea ME 11 1531 17245
Roccella Valdemone ME 12 666 17911
Furnari ME 12 3784 21695
Floresta ME 12 485 22180
Ucria ME 13 1058 23238
Patti ME 13 13431 36669
Montagnareale ME 13 1615 38284
Malvagna ME 13 733 39017
Fondachelli-Fantina ME 14 1019 40036
Santa Domenica Vittoria ME 15 980 41016
Rodì Milici ME 15 2056 43072
Sant'Angelo di Brolo ME 15 3090 46162
Moio Alcantara ME 15 717 46879
Terme Vigliatore ME 16 7395 54274
Sinagra ME 16 2705 56979
Castroreale ME 18 2504 59483
Francavilla di Sicilia ME 18 3945 63428
Tortorici ME 18 6435 69863
Randazzo CT 19 10900 80763
Castiglione di Sicilia CT 19 3215 83978
Gioiosa Marea ME 19 7074 91052
Ficarra ME 19 1469 92521

Municipalities with at least 50000 inhabitants

An earthquake occurred to
49 Km N of Acireale (52622 inhabitants)
50 Km W of Messina (238439 inhabitants)
55 Km W of Reggio di Calabria (183035 inhabitants)
60 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 1.2 2021-07-23
05:22:16
38.0368 15.0277 14 2021-07-23
05:33:38
Sala Sismica INGV-Roma 93093611
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-23 05:22:16 ± 0.1
Latitude 38.0368 ± 0.0072
Longitude 15.0277 ± 0.0034
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 93093611

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 680
Semi-minor axis of confidence ellipse (meter) 410
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 16
Circular confidence region, given by single value of horizontal uncertainty (meter) 680
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 158
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.08633
Epicentral distance of station farthest from the epicenter (degree) 0.34354
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 93093611
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-23 05:33:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MSFR.HHE. 2021-07-23T05:22:29.42 0.6 undecidable manual S 270 0.3435 97 0.07 47
IV.AIO.HHZ. 2021-07-23T05:22:24.35 0.6 undecidable manual S 112 0.1745 112 -0.13 48
IV.MSFR.HHE. 2021-07-23T05:22:23.97 0.1 undecidable manual P 270 0.3435 97 -0.02 95
IV.IVPL.HHZ. 2021-07-23T05:22:23.95 0.6 undecidable manual P 354 0.3408 97 -0.01 47
IV.MUCR.HHZ. 2021-07-23T05:22:23.01 0.6 undecidable manual S 273 0.1214 125 -0.08 49
IV.NOV.HHZ. 2021-07-23T05:22:22.32 0.6 undecidable manual S 96 0.0863 138 0 50
IV.MCPD.HHZ. 2021-07-23T05:22:22.13 0.6 positive manual P 290 0.2473 102 -0.25 47
IV.AIO.HHZ. 2021-07-23T05:22:21.27 0.3 positive manual P 112 0.1745 112 0.09 72
IV.MUCR.HHZ. 2021-07-23T05:22:20.47 0.1 positive manual P 273 0.1214 125 0.1 97
IV.NOV.HHZ. 2021-07-23T05:22:19.94 0.1 negative manual P 96 0.0863 138 0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NOV.HHE. ML:1.4 0.0002245 0.7 AML other m 2021-07-23T05:22:22.77
IV.NOV.HHN. ML:1.3 0.000187 1.3 AML other m 2021-07-23T05:22:22.87
IV.MUCR.HHN. ML:1.3 0.000168 0.24 AML other m 2021-07-23T05:22:23.64
IV.MUCR.HHE. ML:1.1 0.00011 0.6 AML other m 2021-07-23T05:22:23.54
IV.AIO.HHE. ML:1.2 0.00010015 0.28 AML other m 2021-07-23T05:22:25.16
IV.AIO.HHN. ML:1.2 0.0001002 0.9 AML other m 2021-07-23T05:22:25.89
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