INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.3 on date 18-08-2018 and time 13:34:47 (Italy) in region 3 km NW Montalbano Elicona (ME)

A magnitude ML 1.3 earthquake occured in region: 3 km NW Montalbano Elicona (ME), on

  • 18-08-2018 11:34:47 (UTC)
  • 18-08-2018 13:34:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.04, 15 at 39 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 3 2287 2287
San Piero Patti ME 3 2915 5202
Basicò ME 6 612 5814
Librizzi ME 7 1660 7474
Raccuja ME 8 1041 8515
Tripi ME 9 873 9388
Floresta ME 10 485 9873
Ucria ME 10 1058 10931
Oliveri ME 10 2181 13112
Montagnareale ME 11 1615 14727
Falcone ME 11 2808 17535
Patti ME 11 13431 30966
Novara di Sicilia ME 12 1337 32303
Roccella Valdemone ME 12 666 32969
Furnari ME 13 3784 36753
Sant'Angelo di Brolo ME 13 3090 39843
Mazzarrà Sant'Andrea ME 13 1531 41374
Sinagra ME 14 2705 44079
Santa Domenica Vittoria ME 15 980 45059
Malvagna ME 15 733 45792
Tortorici ME 15 6435 52227
Fondachelli-Fantina ME 17 1019 53246
Rodì Milici ME 17 2056 55302
Moio Alcantara ME 17 717 56019
Ficarra ME 17 1469 57488
Gioiosa Marea ME 17 7074 64562
Castell'Umberto ME 18 3128 67690
Terme Vigliatore ME 18 7395 75085
Piraino ME 18 3962 79047
Randazzo CT 19 10900 89947
Castroreale ME 20 2504 92451
Brolo ME 20 5783 98234
San Salvatore di Fitalia ME 20 1319 99553
Francavilla di Sicilia ME 20 3945 103498

Municipalities with at least 50000 inhabitants

An earthquake occurred to
50 Km N of Acireale (52622 inhabitants)
51 Km W of Messina (238439 inhabitants)
57 Km W of Reggio di Calabria (183035 inhabitants)
61 Km N of Catania (314555 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled 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
Rev 100 ML 1.3 2018-08-18
11:34:47
38.04 15 39 2018-08-18
11:48:13
Sala Sismica INGV-Roma 59900201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-08-18 11:34:47 ± 0.3
Latitude 38.04 ± 0.01
Longitude 15.00 ± 0.01
Depth (km) 39 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 59900201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1286
Semi-minor axis of confidence ellipse (meter) 531
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 2
Circular confidence region, given by single value of horizontal uncertainty (meter) 1290
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 157
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.45506
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 59900201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-08-18 11:48:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.GMB.BHZ. 2018-08-18T11:35:12.02 3.0 undecidable manual S 0.76 0
IV.MSRU.HHZ. 2018-08-18T11:35:06.38 0.3 undecidable manual S 61 0.4551 98 0.37 90
IV.IVPL.HHZ. 2018-08-18T11:35:02.77 0.3 undecidable manual S 357 0.3318 117 -0.43 91
IV.MILZ.HHZ. 2018-08-18T11:35:02.25 0.3 undecidable manual S 39 0.2905 124 -0.09 98
IV.MPNC.HHZ. 2018-08-18T11:35:02.79 0.3 undecidable manual S 70 0.295 123 0.35 93
IV.AIO.HHZ. 2018-08-18T11:35:00.25 0.3 undecidable manual S 112 0.197 140 -0.44 94
IV.MUCR.HHZ. 2018-08-18T11:34:59.76 0.3 undecidable manual S 269 0.0998 159 0.26 99
IV.MSRU.HHZ. 2018-08-18T11:34:58.30 0.3 undecidable manual P 61 0.4551 98 -0.04 97
IV.MPNC.HHZ. 2018-08-18T11:34:56.27 0.3 undecidable manual P 70 0.295 123 -0.01 100
IV.IVPL.HHZ. 2018-08-18T11:34:56.65 0.3 undecidable manual P 357 0.3318 117 -0.07 98
IV.MILZ.HHZ. 2018-08-18T11:34:56.24 0.6 undecidable manual P 39 0.2905 124 0.02 66
IV.AIO.HHZ. 2018-08-18T11:34:55.07 0.3 undecidable manual P 112 0.197 140 -0.2 99
IV.MUCR.HHZ. 2018-08-18T11:34:54.81 0.3 undecidable manual P 269 0.0998 159 0.23 99
IV.NOV.HHZ. 2018-08-18T11:34:54.61 0.6 undecidable manual P 99 0.1088 157 -0.02 69
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MSRU.HHE. ML:1.4 4.294073E-5 0.9792 AML other m 2018-08-18T11:35:04.29
IV.MUCR.HHE. ML:0.8 2.159782E-5 0.2944 AML other m 2018-08-18T11:35:00.55
IV.MPNC.HHN. ML:1.4 6.446907E-5 0.384 AML other m 2018-08-18T11:35:03.75
IV.MPNC.HHE. ML:1.4 5.4271515E-5 0.48 AML other m 2018-08-18T11:35:06.51
IV.IVPL.HHN. ML:1.4 0.0001271126 1.0176 AML other m 2018-08-18T11:35:08.05
IV.IVPL.HHE. ML:1.4 8.4648565E-5 0.7808 AML other m 2018-08-18T11:35:09.47
IV.MSRU.HHN. ML:1.5 5.8515185E-5 0.1984 AML other m 2018-08-18T11:35:06.69
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download