Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 27-07-2020 and time 11:46:17 (UTC) in region 3 km SW San Teodoro (ME)

A magnitude ML 1.5 earthquake occured in region: 3 km SW San Teodoro (ME), on

  • 27-07-2020 11:46:17 (UTC)
  • 27-07-2020 13:46:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.8250, 14.6790 at 5 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.

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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 3 1403 1403
Cesarò ME 4 2439 3842
Troina EN 8 9373 13215
Maniace CT 12 3765 16980
Bronte CT 14 19172 36152
Cerami EN 15 2006 38158
Maletto CT 17 3920 42078
Capizzi ME 18 3176 45254
Gagliano Castelferrato EN 18 3593 48847
Regalbuto EN 19 7277 56124

Municipalities with at least 50000 inhabitants

An earthquake occurred to
49 Km NW of Acireale (52622 inhabitants)
51 Km NW of Catania (314555 inhabitants)
66 Km NE of Caltanissetta (63360 inhabitants)
87 Km SW of Messina (238439 inhabitants)
90 Km W of Reggio di Calabria (183035 inhabitants)
92 Km NE of Gela (75827 inhabitants)
98 Km N of Vittoria (63339 inhabitants)
100 Km N of Ragusa (73313 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 1.5 2020-07-27
11:46:17		 37.8252 14.6788 5 2020-11-19
12:36:55		 Bollettino Sismico Italiano INGV 81665761
Reviewed
Rev100 		ML 1.5 2020-07-27
11:46:17		 37.8397 14.6592 4 2020-07-27
12:00:34		 Sala Sismica INGV-Roma 81399381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-27 11:46:17 ± 0.17
Latitude 37.8252 ± 0.0072
Longitude 14.6788 ± 0.0148
Depth (km) 5 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 81665761

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1212
Semi-minor axis of confidence ellipse (meter) 687
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 296
Circular confidence region, given by single value of horizontal uncertainty (meter) 1210.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 180
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.45416
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 81399381
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-27 12:00:34

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 81665761
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-08-05 08:28:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MUCR.HHZ. 2020-07-27T11:46:28.12 0.1 undecidable manual S 35 29.5482 99 0.32 93
IV.PLLN.EHZ. 2020-07-27T11:46:27.50 0.1 undecidable manual P 292 50.4162 50 0.08 94
IV.MSFR.HHZ. 2020-07-27T11:46:26.22 0.3 undecidable manual S 342 24.3534 101 0.2 72
IV.EMSG.HHZ. 2020-07-27T11:46:23.32 3.0 negative manual P 0.7 0
IV.GALF.HHZ. 2020-07-27T11:46:23.28 0.1 undecidable manual S 218 16.0728 106 0.07 100
IV.CAGR.HHZ. 2020-07-27T11:46:23.17 0.1 undecidable manual P 215 27.4503 100 0.19 96
IV.MUCR.HHZ. 2020-07-27T11:46:23.07 0.1 positive manual P 35 29.5482 99 -0.34 92
IV.MSFR.HHZ. 2020-07-27T11:46:22.03 0.1 positive manual P 342 24.3534 101 -0.35 93
IV.EPZF.HHZ. 2020-07-27T11:46:21.69 3.0 positive manual P -0.02 0
IV.GALF.HHZ. 2020-07-27T11:46:20.61 0.1 positive manual P 218 16.0728 106 -0.15 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GALF.HNE. ML:1.4 0.000243 0.72 AML other m 2020-07-27T11:46:24.40
IV.GALF.HHE. ML:2.2 0.0017999999999999997 0.68 AML other m 2020-07-27T11:46:24.39
IV.GALF.HNN. ML:1.3 0.00020449999999999998 0.9 AML other m 2020-07-27T11:46:26.45
IV.GALF.HHN. ML:2.1 0.0014249999999999998 0.86 AML other m 2020-07-27T11:46:26.00
IV.MSFR.HHN. ML:1.1 0.0000818 0.56 AML other m 2020-07-27T11:46:27.33
IV.EPZF.HHN. ML:1.6 0.0004325 0.26 AML other m 2020-07-27T11:46:27.72
IV.EPZF.HHE. ML:1.6 0.0003915 0.6 AML other m 2020-07-27T11:46:28.27
IV.MSFR.HHE. ML:1.0 0.00006445 0.98 AML other m 2020-07-27T11:46:28.95
IV.MUCR.HHN. ML:1.4 0.000144 0.44 AML other m 2020-07-27T11:46:29.35
IV.MUCR.HHE. ML:1.5 0.0001655 1.12 AML other m 2020-07-27T11:46:29.96
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