Earthquake with magnitude of ML 1.0 on date 30-08-2021 and time 11:53:17 (Italy) in region 9 km NW San Teodoro (ME)

A magnitude ML 1.0 earthquake occured in region: 9 km NW San Teodoro (ME), on

  • 30-08-2021 09:53:17 (UTC)
  • 30-08-2021 11:53:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.9130, 14.6440 at 7 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
San Teodoro ME 9 1403 1403
Cesarò ME 10 2439 3842
San Fratello ME 12 3707 7549
Alcara li Fusi ME 13 1980 9529
Troina EN 15 9373 18902
Militello Rosmarino ME 15 1324 20226
Maniace CT 16 3765 23991
Longi ME 16 1473 25464
Capizzi ME 16 3176 28640
Cerami EN 16 2006 30646
Acquedolci ME 17 5744 36390
Sant'Agata di Militello ME 18 12624 49014
Galati Mamertino ME 18 2627 51641
San Marco d'Alunzio ME 19 1996 53637
Frazzanò ME 20 711 54348

Municipalities with at least 50000 inhabitants

An earthquake occurred to
57 Km NW of Acireale (52622 inhabitants)
60 Km NW of Catania (314555 inhabitants)
69 Km NE of Caltanissetta (63360 inhabitants)
86 Km W of Messina (238439 inhabitants)
90 Km W of Reggio di Calabria (183035 inhabitants)
100 Km NE of Gela (75827 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 1.0 2021-08-30
09:53:17
37.9127 14.6437 7 2021-12-29
11:12:29
Bollettino Sismico Italiano INGV 95261851
Reviewed
Rev100
ML 1.3 2021-08-30
09:53:17
37.9353 14.6112 16 2021-08-30
10:02:57
Sala Sismica INGV-Roma 94814451
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-30 09:53:17 ± 0.13
Latitude 37.9127 ± 0.0045
Longitude 14.6437 ± 0.0091
Depth (km) 7 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 95261851

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 778
Semi-minor axis of confidence ellipse (meter) 165
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 289
Circular confidence region, given by single value of horizontal uncertainty (meter) 780.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 79
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.12770
Epicentral distance of station farthest from the epicenter (degree) 0.46225
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 95261851
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-12-14 16:19:07

ML:1.3

Field Value
Value 1.3
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 94814451
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-30 10:02:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSLB.HHZ. 2021-08-30T09:53:27.70 0.6 undecidable manual P 273 51.3153 50 0.19 46
IV.MUCR.HHZ. 2021-08-30T09:53:26.79 0.6 undecidable manual S 54 24.753 106 0.2 48
IV.MCPD.HHZ. 2021-08-30T09:53:26.15 0.6 undecidable manual S 18 24.2535 106 -0.25 48
IV.GALF.HHZ. 2021-08-30T09:53:26.01 0.6 undecidable manual S 197 23.3544 107 -0.12 49
IV.MSFR.HHZ. 2021-08-30T09:53:23.61 0.6 undecidable manual S 341 14.1747 116 0.47 46
IV.EPZF.HHE. 2021-08-30T09:53:22.56 0.6 undecidable manual P 118 21.0678 108 0.45 46
IV.GALF.HHZ. 2021-08-30T09:53:22.49 0.1 undecidable manual P 197 23.3544 107 -0.06 99
IV.MUCR.HHZ. 2021-08-30T09:53:22.69 0.1 undecidable manual P 54 24.753 106 -0.12 98
IV.MCPD.HHZ. 2021-08-30T09:53:22.56 0.1 undecidable manual P 18 24.2535 106 -0.15 97
IV.MSFR.HHZ. 2021-08-30T09:53:20.73 0.1 undecidable manual P 341 14.1747 116 -0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MSFR.HHE. ML:0.4 0.000027971235 0.2048 AML other m 2021-08-30T09:53:23.88
IV.MSFR.HHN. ML:0.4 0.000029782936 0.1408 AML other m 2021-08-30T09:53:24.42
IV.GALF.HHN. ML:1.0 0.000074030375 0.4992 AML other m 2021-08-30T09:53:26.29
IV.MUCR.HHN. ML:1.0 0.00005875 1.28 AML other m 2021-08-30T09:53:26.97
IV.GALF.HHE. ML:1.2 0.0001056 1.36 AML other m 2021-08-30T09:53:26.11
IV.MUCR.HHE. ML:1.2 0.000089 1.66 AML other m 2021-08-30T09:53:26.11
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