Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 05-08-2020 and time 01:19:46 (Italy) in region 6 km W San Teodoro (ME)

A magnitude ML 1.9 earthquake occured in region: 6 km W San Teodoro (ME), on

  • 04-08-2020 23:19:46 (UTC)
  • 05-08-2020 01:19:46 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.8560, 14.6270 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 7 1403 1403
Cesarò ME 8 2439 3842
Troina EN 8 9373 13215
Cerami EN 12 2006 15221
Capizzi ME 13 3176 18397
Maniace CT 16 3765 22162
San Fratello ME 18 3707 25869
Gagliano Castelferrato EN 18 3593 29462
Bronte CT 20 19172 48634
Alcara li Fusi ME 20 1980 50614

Municipalities with at least 50000 inhabitants

An earthquake occurred to
55 Km NW of Acireale (52622 inhabitants)
56 Km NW of Catania (314555 inhabitants)
64 Km NE of Caltanissetta (63360 inhabitants)
90 Km W of Messina (238439 inhabitants)
94 Km W of Reggio di Calabria (183035 inhabitants)
94 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 1.9 2020-08-04
23:19:46		 37.8558 14.6268 10 2020-11-19
12:36:57		 Bollettino Sismico Italiano INGV 81849361
Reviewed
Rev100 		ML 2.0 2020-08-04
23:19:46		 37.8592 14.6275 9 2020-08-04
23:35:06		 Sala Sismica INGV-Roma 81657821
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-04 23:19:46 ± 0.16
Latitude 37.8558 ± 0.0081
Longitude 14.6268 ± 0.0125
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 81849361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1059
Semi-minor axis of confidence ellipse (meter) 503
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 290
Circular confidence region, given by single value of horizontal uncertainty (meter) 1060.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 87
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.41
Epicentral distance of station closest to the epicenter (degree) 0.15288
Epicentral distance of station farthest from the epicenter (degree) 1.19250
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 21
Type of magnitude ML
Reference to an origin 81657821
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-04 23:35:06

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 19
Type of magnitude ML
Reference to an origin 81849361
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-08-10 15:23:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSY.HHZ. 2020-08-04T23:20:12.81 0.3 undecidable manual S 153 86.8464 50 0.58 59
IV.HPAC.HHZ. 2020-08-04T23:20:07.85 0.3 undecidable manual P 164 132.3675 50 -0.43 56
IV.HLNI.HHZ. 2020-08-04T23:20:05.63 0.3 undecidable manual S 159 60.2952 50 0.5 64
IV.NOV.HHZ. 2020-08-04T23:20:01.95 0.3 undecidable manual S 67 48.5181 50 -0.04 72
IV.SSY.HHZ. 2020-08-04T23:20:00.84 0.3 undecidable manual P 153 86.8464 50 -0.43 62
IV.MUCR.HHZ. 2020-08-04T23:19:57.56 0.6 undecidable manual S 46 29.9478 50 0.52 45
IV.HLNI.HHZ. 2020-08-04T23:19:56.56 0.3 undecidable manual P 159 60.2952 50 -0.62 61
IV.AIO.HHZ. 2020-08-04T23:19:55.79 0.3 undecidable manual P 76 54.6009 50 -0.51 65
IV.PLLN.EHE. 2020-08-04T23:19:55.48 0.3 undecidable manual P 290 44.9217 50 0.66 62
IV.EPZF.HHZ. 2020-08-04T23:19:54.99 0.3 undecidable manual S 100 20.4684 116 0.8 61
IV.NOV.HHZ. 2020-08-04T23:19:54.95 0.3 undecidable manual P 67 48.5181 50 -0.41 67
IV.GALF.HHZ. 2020-08-04T23:19:53.38 0.6 undecidable manual S 198 16.9719 120 0.27 49
IV.ECHR.HHE. 2020-08-04T23:19:52.65 0.3 undecidable manual P 127 31.3464 50 -0.07 74
IV.CAGR.HHZ. 2020-08-04T23:19:52.81 0.3 undecidable manual P 203 28.2495 50 0.57 66
IV.MUCR.HHZ. 2020-08-04T23:19:52.10 0.1 positive manual P 46 29.9478 50 -0.41 92
IV.EMSG.HHZ. 2020-08-04T23:19:52.52 0.1 undecidable manual P 98 28.5492 50 0.23 96
IV.ESML.HHZ. 2020-08-04T23:19:52.93 0.3 undecidable manual P 140 34.4433 50 -0.27 71
IV.MSFR.HHZ. 2020-08-04T23:19:51.03 0.1 undecidable manual P 351 19.9689 116 0.25 97
IV.EPZF.HHZ. 2020-08-04T23:19:50.76 0.1 positive manual P 100 20.4684 116 -0.11 100
IV.GALF.HHZ. 2020-08-04T23:19:49.62 0.1 positive manual P 198 16.9719 120 -0.62 88
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GALF.HHE. ML:2.4 0.0024722385 0.2176 AML other m 2020-08-04T23:19:53.58
IV.GALF.HNE. ML:1.5 0.00027092850000000004 0.192 AML other m 2020-08-04T23:19:53.58
IV.GALF.HHN. ML:2.6 0.0031044145 1.744 AML other m 2020-08-04T23:19:54.98
IV.GALF.HNN. ML:1.7 0.0004120777 0.256 AML other m 2020-08-04T23:19:55.01
IV.MSFR.HHE. ML:1.4 0.0002066366 0.4608 AML other m 2020-08-04T23:19:55.96
IV.EPZF.HHN. ML:2.1 0.0009510495000000001 0.2816 AML other m 2020-08-04T23:19:56.72
IV.EPZF.HHE. ML:2.2 0.0011027814 1.6416 AML other m 2020-08-04T23:19:58.02
IV.MSFR.HHN. ML:1.5 0.0002298506 0.4864 AML other m 2020-08-04T23:19:58.07
IV.MUCR.HHE. ML:2.0 0.0004982415 1.5392 AML other m 2020-08-04T23:19:58.81
IV.MUCR.HHN. ML:1.9 0.00035719599999999995 0.3968 AML other m 2020-08-04T23:19:59.19
IV.ESML.HHE. ML:2.0 0.00044630630000000004 0.4992 AML other m 2020-08-04T23:20:02.30
IV.ESML.HHN. ML:2.0 0.00037304755 0.64 AML other m 2020-08-04T23:20:02.41
IV.HLNI.HHE. ML:1.5 0.000059546795 1.4112 AML other m 2020-08-04T23:20:05.73
IV.AIO.HHN. ML:1.8 0.00015110445 0.192 AML other m 2020-08-04T23:20:07.51
IV.AIO.HHE. ML:1.9 0.0001724937 1.1424 AML other m 2020-08-04T23:20:08.66
IV.NOV.HHN. ML:2.1 0.00036829935 0.32 AML other m 2020-08-04T23:20:08.72
IV.NOV.HHE. ML:2.3 0.00051132435 0.5632 AML other m 2020-08-04T23:20:09.22
IV.HLNI.HHN. ML:1.3 0.000047407789999999996 0.2176 AML other m 2020-08-04T23:20:10.50
IV.SSY.HHE. ML:2.3 0.0002251129 0.384 AML other m 2020-08-04T23:20:15.28
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