Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 04-08-2020 and time 14:55:47 (Italy) in region 6 km W San Teodoro (ME)

A magnitude ML 2.2 earthquake occured in region: 6 km W San Teodoro (ME), on

  • 04-08-2020 12:55:47 (UTC)
  • 04-08-2020 14:55:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.8450, 14.6290 at 10 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 6 1403 1403
Troina EN 7 9373 10776
Cesarò ME 7 2439 13215
Cerami EN 11 2006 15221
Capizzi ME 13 3176 18397
Maniace CT 16 3765 22162
Gagliano Castelferrato EN 17 3593 25755
San Fratello ME 19 3707 29462
Bronte CT 19 19172 48634

Municipalities with at least 50000 inhabitants

An earthquake occurred to
54 Km NW of Acireale (52622 inhabitants)
55 Km NW of Catania (314555 inhabitants)
63 Km NE of Caltanissetta (63360 inhabitants)
90 Km W of Messina (238439 inhabitants)
93 Km NE of Gela (75827 inhabitants)
94 Km W of Reggio di Calabria (183035 inhabitants)
100 Km N of Vittoria (63339 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 2.2 2020-08-04
12:55:47		 37.8453 14.6292 10 2020-11-19
12:36:57		 Bollettino Sismico Italiano INGV 81845881
Reviewed
Rev100 		ML 2.3 2020-08-04
12:55:47		 37.8438 14.6505 9 2020-08-04
13:05:25		 Sala Sismica INGV-Roma 81640691
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-04 12:55:47 ± 0.12
Latitude 37.8453 ± 0.0063
Longitude 14.6292 ± 0.0091
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 81845881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 802
Semi-minor axis of confidence ellipse (meter) 544
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 292
Circular confidence region, given by single value of horizontal uncertainty (meter) 800.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.77252
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 81640691
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-04 13:05:25

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 81845881
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-08-10 13:52:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HPAC.HHZ. 2020-08-04T12:56:28.40 3.0 undecidable manual S -0.42 0
IV.NOV.HHZ. 2020-08-04T12:56:02.83 0.3 undecidable manual S 65 48.8178 50 0.07 71
IV.SSY.HHZ. 2020-08-04T12:56:01.58 0.6 undecidable manual P 153 85.7475 50 -0.26 43
IV.RAFF.HHZ. 2020-08-04T12:55:59.68 0.3 undecidable manual P 199 72.9714 50 -0.19 66
IV.MUCR.HHZ. 2020-08-04T12:55:57.89 0.6 undecidable manual S 44 30.6471 50 -0.02 49
IV.AIO.HHE. 2020-08-04T12:55:56.59 0.6 undecidable manual P 75 54.7008 50 -0.46 43
IV.PLLN.EHE. 2020-08-04T12:55:56.17 0.3 undecidable manual P 291 45.5211 50 0.53 65
IV.EPZF.HHZ. 2020-08-04T12:55:55.68 0.3 undecidable manual S 97 20.0688 117 0.71 63
IV.NOV.HHZ. 2020-08-04T12:55:55.58 0.3 undecidable manual P 65 48.8178 50 -0.57 63
IV.MSFR.HHZ. 2020-08-04T12:55:55.75 0.6 undecidable manual S 351 21.1677 116 0.46 46
IV.EPIT.HHN. 2020-08-04T12:55:54.71 0.6 undecidable manual P 96 37.629 50 0.28 46
IV.ESML.HHZ. 2020-08-04T12:55:54.13 0.3 undecidable manual P 139 33.4443 50 0.35 69
IV.ESLN.HHZ. 2020-08-04T12:55:54.13 0.6 undecidable manual P 119 34.6431 50 0.16 48
IV.ECHR.HHE. 2020-08-04T12:55:53.99 0.6 undecidable manual P 125 30.5472 50 0.66 42
IV.GALF.HHZ. 2020-08-04T12:55:53.57 0.6 undecidable manual S 200 15.873 123 -0.13 50
IV.CAGR.HHZ. 2020-08-04T12:55:53.25 0.1 undecidable manual P 205 27.2505 50 0.43 91
IV.MUCR.HHZ. 2020-08-04T12:55:52.88 0.1 undecidable manual P 44 30.6471 50 -0.47 90
IV.EMSG.HHZ. 2020-08-04T12:55:52.80 0.1 undecidable manual P 95 28.2495 50 -0.17 96
IV.MSFR.HHZ. 2020-08-04T12:55:51.79 0.1 undecidable manual P 351 21.1677 116 -0.05 100
IV.EPZF.HHZ. 2020-08-04T12:55:51.44 0.1 undecidable manual P 97 20.0688 117 -0.2 97
IV.GALF.HHZ. 2020-08-04T12:55:50.42 0.1 positive manual P 200 15.873 123 -0.5 92
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GALF.HNN. ML:1.8 0.0006266968 0.3008 AML other m 2020-08-04T12:55:56.98
IV.GALF.HHN. ML:2.7 0.004404617 0.3648 AML other m 2020-08-04T12:55:55.93
IV.GALF.HNE. ML:1.9 0.00067299815 0.4032 AML other m 2020-08-04T12:55:57.77
IV.GALF.HHE. ML:2.8 0.0050434515 0.3584 AML other m 2020-08-04T12:55:57.15
IV.EPZF.HHN. ML:2.5 0.002124388 0.3776 AML other m 2020-08-04T12:55:58.64
IV.EPZF.HHE. ML:2.3 0.0015106045 0.3648 AML other m 2020-08-04T12:55:58.80
IV.EMSG.HHN. ML:2.5 0.001503672 0.4608 AML other m 2020-08-04T12:56:05.60
IV.EMSG.HHE. ML:2.5 0.0017425255000000001 0.5056 AML other m 2020-08-04T12:56:07.60
IV.MUCR.HHN. ML:2.2 0.0007287353999999999 0.3968 AML other m 2020-08-04T12:55:59.98
IV.MUCR.HHE. ML:2.3 0.0009071093 0.4224 AML other m 2020-08-04T12:55:59.62
IV.CAGR.HHE. ML:2.2 0.00075113045 0.7616 AML other m 2020-08-04T12:56:06.54
IV.CAGR.HHN. ML:2.3 0.001044578 0.3968 AML other m 2020-08-04T12:56:05.23
IV.ESML.HHN. ML:2.0 0.00042058055 0.6976 AML other m 2020-08-04T12:56:04.52
IV.ESML.HHE. ML:2.2 0.00067581125 0.5824 AML other m 2020-08-04T12:56:07.33
IV.NOV.HHN. ML:2.3 0.0005179399 0.7552 AML other m 2020-08-04T12:56:07.64
IV.NOV.HHE. ML:2.4 0.0006059817499999999 0.6784 AML other m 2020-08-04T12:56:09.99
IV.RAFF.HHE. ML:1.8 0.00009266877 1.536 AML other m 2020-08-04T12:56:29.28
IV.RAFF.HHN. ML:1.6 0.000069986365 0.5184 AML other m 2020-08-04T12:56:13.98
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
Waveforms Seismic signals in miniseed + resp format Download