Earthquake with magnitude of ML 0.5 on date 21-09-2020 and time 21:06:37 (Italy) in region 2 km NW Tripi (ME)

A magnitude ML 0.5 earthquake occured in region: 2 km NW Tripi (ME), on

  • 21-09-2020 19:06:37 (UTC)
  • 21-09-2020 21:06:37 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.06, 15.09 at 6 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
Tripi ME 2 873 873
Basicò ME 2 612 1485
Mazzarrà Sant'Andrea ME 5 1531 3016
Furnari ME 6 3784 6800
Falcone ME 6 2808 9608
Novara di Sicilia ME 7 1337 10945
Oliveri ME 7 2181 13126
Montalbano Elicona ME 8 2287 15413
Rodì Milici ME 9 2056 17469
Terme Vigliatore ME 11 7395 24864
San Piero Patti ME 11 2915 27779
Castroreale ME 12 2504 30283
Fondachelli-Fantina ME 12 1019 31302
Librizzi ME 12 1660 32962
Patti ME 14 13431 46393
Montagnareale ME 14 1615 48008
Barcellona Pozzo di Gotto ME 15 41583 89591
Raccuja ME 15 1041 90632
Roccella Valdemone ME 16 666 91298
Malvagna ME 16 733 92031
Antillo ME 17 919 92950
Floresta ME 18 485 93435
Ucria ME 18 1058 94493
Merì ME 18 2338 96831
Sant'Angelo di Brolo ME 19 3090 99921
Francavilla di Sicilia ME 19 3945 103866
Moio Alcantara ME 19 717 104583
Santa Lucia del Mela ME 19 4650 109233
Santa Domenica Vittoria ME 20 980 110213

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km W of Messina (238439 inhabitants)
49 Km W of Reggio di Calabria (183035 inhabitants)
51 Km N of Acireale (52622 inhabitants)
62 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 0.5 2020-09-21
19:06:37
38.07 15.09 6 2020-09-21
19:12:23
Sala Sismica INGV-Roma 83114781
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-21 19:06:37 ± 0.08
Latitude 38.07 ± 0.01
Longitude 15.09 ± 0.00
Depth (km) 6 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 83114781

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 795
Semi-minor axis of confidence ellipse (meter) 82
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 195
Circular confidence region, given by single value of horizontal uncertainty (meter) 800
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 226
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.05
Epicentral distance of station closest to the epicenter (degree) 0.05486
Epicentral distance of station farthest from the epicenter (degree) 0.16907
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 83114781
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-21 19:12:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MUCR.HHZ. 2020-09-21T19:06:44.65 0.3 undecidable manual S 263 0.1691 109 0.03 73
IV.AIO.HHZ. 2020-09-21T19:06:43.91 0.1 undecidable manual S 129 0.1484 111 0 99
IV.MUCR.HHZ. 2020-09-21T19:06:41.68 0.1 undecidable manual P 263 0.1691 109 -0.04 98
IV.AIO.HHZ. 2020-09-21T19:06:41.30 0.1 positive manual P 129 0.1484 111 0 99
IV.NOV.HHZ. 2020-09-21T19:06:40.79 0.1 undecidable manual S 133 0.0549 137 -0.02 100
IV.NOV.HHZ. 2020-09-21T19:06:39.56 0.1 positive manual P 133 0.0549 137 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NOV.HHE. ML:0 0.0002496721 0.1024 AML other m 2020-09-21T19:06:41.08
IV.NOV.HHN. ML:0 0.00042691995 0.192 AML other m 2020-09-21T19:06:41.13
IV.AIO.HHE. ML:0.6 3.703662E-5 0.4352 AML other m 2020-09-21T19:06:45.08
IV.AIO.HHN. ML:0.6 3.7880575E-5 0.2688 AML other m 2020-09-21T19:06:44.76
IV.MUCR.HHE. ML:0.2 1.35631315E-5 0.3456 AML other m 2020-09-21T19:06:44.68
IV.MUCR.HHN. ML:0.4 2.2316335E-5 0.4608 AML other m 2020-09-21T19:06:46.88
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