Earthquake with magnitude of ML 0.9 on date 23-08-2020 and time 05:10:31 (Italy) in region Costa Siciliana nord orientale (Messina)

A magnitude ML 0.9 earthquake occured in region: Costa Siciliana nord orientale (Messina), on

  • 23-08-2020 03:10:31 (UTC)
  • 23-08-2020 05:10:31 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.14, 15.11 at 9 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
Falcone ME 4 2808 2808
Furnari ME 5 3784 6592
Terme Vigliatore ME 5 7395 13987
Oliveri ME 5 2181 16168
Rodì Milici ME 6 2056 18224
Mazzarrà Sant'Andrea ME 6 1531 19755
Barcellona Pozzo di Gotto ME 10 41583 61338
Basicò ME 10 612 61950
Castroreale ME 10 2504 64454
Tripi ME 11 873 65327
Merì ME 12 2338 67665
Patti ME 13 13431 81096
Librizzi ME 14 1660 82756
Novara di Sicilia ME 14 1337 84093
Montagnareale ME 14 1615 85708
San Filippo del Mela ME 14 7115 92823
Milazzo ME 15 31646 124469
Santa Lucia del Mela ME 15 4650 129119
Montalbano Elicona ME 16 2287 131406
San Piero Patti ME 16 2915 134321
Pace del Mela ME 18 6239 140560
Gualtieri Sicaminò ME 18 1807 142367
Fondachelli-Fantina ME 18 1019 143386
Gioiosa Marea ME 19 7074 150460
Condrò ME 19 493 150953
Raccuja ME 20 1041 151994

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km W of Messina (238439 inhabitants)
47 Km W of Reggio di Calabria (183035 inhabitants)
59 Km N of Acireale (52622 inhabitants)
71 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
Reviewed
Rev100
ML 0.9 2020-08-23
03:10:31
38.14 15.11 9 2020-08-23
05:02:28
Sala Sismica INGV-Roma 82249121
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-23 03:10:31 ± 0.05
Latitude 38.14 ± 0.00
Longitude 15.11 ± 0.00
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 82249121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 395
Semi-minor axis of confidence ellipse (meter) 314
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 121
Circular confidence region, given by single value of horizontal uncertainty (meter) 390
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 93
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.11781
Epicentral distance of station farthest from the epicenter (degree) 0.27879
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 82249121
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-23 05:02:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.IVUG.HHE. 2020-08-23T03:10:42.01 0.6 undecidable manual S 339 0.2698 50 -0.04 50
IV.IVGP.HHE. 2020-08-23T03:10:42.06 0.6 undecidable manual S 335 0.2788 50 -0.24 47
IV.AIO.HHZ. 2020-08-23T03:10:39.23 0.6 undecidable manual S 151 0.1979 113 -0.29 48
IV.MUCR.HHZ. 2020-08-23T03:10:39.89 0.6 undecidable manual S 242 0.2122 112 -0.13 48
IV.MPNC.HHZ. 2020-08-23T03:10:39.04 0.6 undecidable manual S 89 0.1907 114 -0.22 48
IV.MILZ.HHZ. 2020-08-23T03:10:38.13 0.6 undecidable manual S 37 0.1583 118 -0.03 50
IV.IVPL.HHZ. 2020-08-23T03:10:37.50 0.3 undecidable manual P 336 0.2536 109 0.33 70
IV.IVGP.HHE. 2020-08-23T03:10:37.48 0.1 undecidable manual P 335 0.2788 50 -0.14 97
IV.IVUG.HHE. 2020-08-23T03:10:37.40 0.1 undecidable manual P 339 0.2698 50 -0.07 98
IV.ECTS.HHE. 2020-08-23T03:10:37.46 0.1 undecidable manual P 178 0.2617 50 0.12 95
IV.NOV.HHZ. 2020-08-23T03:10:36.75 0.6 undecidable manual S 170 0.1178 126 -0.08 50
IV.AIO.HHZ. 2020-08-23T03:10:36.00 0.6 positive manual P 151 0.1979 113 -0.02 50
IV.MUCR.HHZ. 2020-08-23T03:10:36.32 1.0 undecidable manual P 242 0.2122 112 0.02 25
IV.MILZ.HHZ. 2020-08-23T03:10:35.38 0.1 undecidable manual P 37 0.1583 118 0.15 99
IV.MPNC.HHZ. 2020-08-23T03:10:35.90 0.1 positive manual P 89 0.1907 114 0.04 100
IV.NOV.HHZ. 2020-08-23T03:10:34.64 0.1 positive manual P 170 0.1178 126 0.18 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NOV.HHE. ML:1 0.000113379735 0.2016 AML other m 2020-08-23T03:10:37.07
IV.NOV.HHN. ML:1 0.00011541117 0.1792 AML other m 2020-08-23T03:10:38.33
IV.MILZ.HHE. ML:1 8.522008E-5 0.1808 AML other m 2020-08-23T03:10:38.94
IV.MILZ.HHN. ML:0.7 3.879559E-5 0.1984 AML other m 2020-08-23T03:10:38.25
IV.MPNC.HHE. ML:0.9 5.632841E-5 0.36 AML other m 2020-08-23T03:10:42.63
IV.MPNC.HHN. ML:1.1 8.3792515E-5 0.1392 AML other m 2020-08-23T03:10:39.88
IV.AIO.HHE. ML:0.8 3.89685E-5 0.1792 AML other m 2020-08-23T03:10:40.85
IV.AIO.HHN. ML:0.8 4.562561E-5 0.1808 AML other m 2020-08-23T03:10:40.35
IV.MUCR.HHE. ML:0.6 2.554464E-5 0.16 AML other m 2020-08-23T03:10:40.24
IV.MUCR.HHN. ML:0.7 3.179319E-5 0.2 AML other m 2020-08-23T03:10:40.13
IV.IVPL.HHE. ML:0.9 4.2677435E-5 0.3984 AML other m 2020-08-23T03:10:46.42
IV.IVPL.HHN. ML:0.8 3.6821345E-5 0.6608 AML other m 2020-08-23T03:10:52.92
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