Earthquake with magnitude of ML 1.0 on date 21-08-2020 and time 23:52:14 (UTC) in region Costa Siciliana nord orientale (Messina)

A magnitude ML 1.0 earthquake occured in region: Costa Siciliana nord orientale (Messina), on

  • 21-08-2020 23:52:14 (UTC)
  • 22-08-2020 01:52:14 (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 3 2808 2808
Furnari ME 4 3784 6592
Oliveri ME 4 2181 8773
Terme Vigliatore ME 5 7395 16168
Mazzarrà Sant'Andrea ME 6 1531 17699
Rodì Milici ME 6 2056 19755
Basicò ME 9 612 20367
Tripi ME 10 873 21240
Barcellona Pozzo di Gotto ME 10 41583 62823
Castroreale ME 10 2504 65327
Merì ME 13 2338 67665
Patti ME 13 13431 81096
Novara di Sicilia ME 13 1337 82433
Librizzi ME 14 1660 84093
Montagnareale ME 14 1615 85708
San Filippo del Mela ME 15 7115 92823
Montalbano Elicona ME 15 2287 95110
Milazzo ME 15 31646 126756
Santa Lucia del Mela ME 15 4650 131406
San Piero Patti ME 16 2915 134321
Fondachelli-Fantina ME 18 1019 135340
Pace del Mela ME 18 6239 141579
Gualtieri Sicaminò ME 19 1807 143386
Gioiosa Marea ME 19 7074 150460
Raccuja ME 19 1041 151501
Condrò ME 20 493 151994
Sant'Angelo di Brolo ME 20 3090 155084

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km W of Messina (238439 inhabitants)
47 Km W of Reggio di Calabria (183035 inhabitants)
58 Km N of Acireale (52622 inhabitants)
70 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 1.0 2020-08-21
23:52:14
38.14 15.11 9 2020-08-21
23:58:14
Sala Sismica INGV-Roma 82216531
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-21 23:52:14 ± 0.21
Latitude 38.14 ± 0.01
Longitude 15.11 ± 0.00
Depth (km) 9 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 82216531

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 647
Semi-minor axis of confidence ellipse (meter) 549
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 340
Circular confidence region, given by single value of horizontal uncertainty (meter) 650
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 204
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.20684
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 4
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 82216531
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-21 23:58:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MUCR.HHZ. 2020-08-21T23:52:23.37 0.6 undecidable manual S 243 0.2068 112 -0.16 49
IV.MPNC.HHZ. 2020-08-21T23:52:23.04 0.6 undecidable manual S 87 0.1925 113 0.04 51
IV.AIO.HHZ. 2020-08-21T23:52:22.76 0.6 undecidable manual S 149 0.1916 113 -0.23 49
IV.IVPL.HHZ. 2020-08-21T23:52:21.15 3.0 negative manual P 0.06 0
IV.NOV.HHZ. 2020-08-21T23:52:20.29 0.6 undecidable manual S 168 0.1106 127 0.03 51
IV.MUCR.HHZ. 2020-08-21T23:52:20.00 1.0 undecidable manual P 243 0.2068 112 0.1 25
IV.MPNC.HHZ. 2020-08-21T23:52:19.51 0.1 positive manual P 87 0.1925 113 -0.09 100
IV.AIO.HHZ. 2020-08-21T23:52:19.65 0.3 negative manual P 149 0.1916 113 0.06 76
IV.NOV.HHZ. 2020-08-21T23:52:18.19 0.1 negative manual P 168 0.1106 127 0.17 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NOV.HHE. ML:1.1 0.0001395 1.06 AML other m 2020-08-21T23:52:22.66
IV.NOV.HHN. ML:1.1 0.0001595 1.26 AML other m 2020-08-21T23:52:22.25
IV.AIO.HHN. ML:1 6.4E-5 0.26 AML other m 2020-08-21T23:52:23.33
IV.MPNC.HHN. ML:1.1 9.705E-5 0.34 AML other m 2020-08-21T23:52:23.24
IV.MPNC.HHE. ML:0.9 5.895E-5 0.42 AML other m 2020-08-21T23:52:23.23
IV.AIO.HHE. ML:0.7 3.3E-5 0.64 AML other m 2020-08-21T23:52:23.25
IV.MUCR.HHN. ML:1 5.76E-5 0.34 AML other m 2020-08-21T23:52:23.68
IV.MUCR.HHE. ML:0.8 3.935E-5 0.38 AML other m 2020-08-21T23:52:23.88
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