Earthquake with magnitude of ML 1.0 on date 04-10-2021 and time 21:11:39 (Italy) in region Costa Siciliana nord orientale (Messina)

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

  • 04-10-2021 19:11:39 (UTC)
  • 04-10-2021 21:11:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.146, 15.106 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
Oliveri ME 5 2181 4989
Furnari ME 5 3784 8773
Terme Vigliatore ME 5 7395 16168
Mazzarrà Sant'Andrea ME 7 1531 17699
Rodì Milici ME 7 2056 19755
Barcellona Pozzo di Gotto ME 10 41583 61338
Basicò ME 10 612 61950
Castroreale ME 11 2504 64454
Tripi ME 11 873 65327
Patti ME 12 13431 78758
Merì ME 13 2338 81096
Montagnareale ME 14 1615 82711
Librizzi ME 14 1660 84371
Novara di Sicilia ME 15 1337 85708
Milazzo ME 15 31646 117354
San Filippo del Mela ME 15 7115 124469
Santa Lucia del Mela ME 16 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 19 1807 142367
Fondachelli-Fantina ME 19 1019 143386
Gioiosa Marea ME 19 7074 150460
Condrò ME 20 493 150953
Raccuja ME 20 1041 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)
60 Km N of Acireale (52622 inhabitants)
71 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 1.0 2021-10-04
19:11:39
38.1462 15.106 9 2021-10-04
19:48:14
Sala Sismica INGV-Roma 96215251
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-04 19:11:39 ± 0.08
Latitude 38.1462 ± 0.0045
Longitude 15.1060 ± 0.0080
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 96215251

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 562
Semi-minor axis of confidence ellipse (meter) 516
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 92
Circular confidence region, given by single value of horizontal uncertainty (meter) 560
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 70
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.70417
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 9
Type of magnitude ML
Reference to an origin 96215251
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-04 19:48:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.HAGA.HHZ. 2021-10-04T19:12:10.52 3.0 undecidable manual S 0.1 0
IV.EMNR.HHZ. 2021-10-04T19:12:01.08 3.0 undecidable manual S 0
IV.MSFR.HHZ. 2021-10-04T19:11:54.15 0.1 undecidable manual S 255 0.42 50 -0.41 89
IV.IACL.HHE. 2021-10-04T19:11:52.97 0.3 undecidable manual P 304 0.7042 50 0.05 67
IV.MTTG.HHE. 2021-10-04T19:11:49.14 0.1 undecidable manual P 107 0.4883 50 -0.09 94
IV.ECTS.HHE. 2021-10-04T19:11:49.84 0.1 undecidable manual S 177 0.2644 107 0.05 98
IV.EMSG.HHZ. 2021-10-04T19:11:47.20 0.1 undecidable manual P 201 0.3471 50 0.39 89
IV.EMNR.HHZ. 2021-10-04T19:11:47.76 3.0 undecidable manual P 0
IV.MPNC.HHZ. 2021-10-04T19:11:47.14 0.3 undecidable manual S 90 0.1943 112 -0.1 74
IV.MSFR.HHZ. 2021-10-04T19:11:47.89 0.1 undecidable manual P 255 0.42 50 -0.16 93
IV.ILOS.HHE. 2021-10-04T19:11:46.57 0.6 undecidable manual P 338 0.3238 50 0.16 47
IV.IVGP.HHE. 2021-10-04T19:11:46.29 0.1 undecidable manual P 336 0.2752 106 0.75 81
IV.ECTS.HHE. 2021-10-04T19:11:45.53 0.1 undecidable manual P 177 0.2644 107 0.23 94
IV.MILZ.HHZ. 2021-10-04T19:11:45.76 0.3 undecidable manual S 38 0.1592 117 -0.26 71
IV.MCPD.HHZ. 2021-10-04T19:11:45.49 0.1 positive manual P 265 0.2959 50 -0.44 90
IV.ECPN.HHZ. 2021-10-04T19:11:45.94 3.0 undecidable manual P 0
IV.IVUG.HHE. 2021-10-04T19:11:45.52 0.1 undecidable manual P 339 0.2671 107 0.16 96
IV.MUCR.HHZ. 2021-10-04T19:11:44.16 0.3 undecidable manual P 241 0.2095 111 0.01 75
IV.IVPL.HHZ. 2021-10-04T19:11:44.98 0.3 undecidable manual P 337 0.25 108 -0.03 74
IV.MILZ.HHZ. 2021-10-04T19:11:43.09 0.1 undecidable manual P 38 0.1592 117 -0.03 100
IV.MPNC.HHZ. 2021-10-04T19:11:43.66 0.1 undecidable manual P 90 0.1943 112 -0.17 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MPNC.HHN. ML:1.3 0.0001342511 0.256 AML other m 2021-10-04T19:11:47.40
IV.MUCR.HHN. ML:1.1 8.985E-5 1.64 AML other m 2021-10-04T19:11:47.92
IV.MUCR.HHE. ML:0.9 5.69E-5 0.14 AML other m 2021-10-04T19:11:48.04
IV.MPNC.HHE. ML:1.1 9.746534E-5 0.2432 AML other m 2021-10-04T19:11:47.46
IV.MCPD.HHE. ML:0.9 3.28E-5 0.34 AML other m 2021-10-04T19:11:51.05
IV.MCPD.HHN. ML:0.7 1.8632765E-5 0.32 AML other m 2021-10-04T19:11:52.58
IV.MILZ.HHE. ML:1.4 0.00021796641 0.2688 AML other m 2021-10-04T19:11:46.20
IV.MSFR.HHE. ML:0.7 1.65076165E-5 0.2816 AML other m 2021-10-04T19:11:55.03
IV.MSFR.HHN. ML:0.7 1.426195E-5 0.3456 AML other m 2021-10-04T19:11:55.06
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