Earthquake with magnitude of ML 1.6 on date 31-08-2020 and time 12:32:04 (Italy) in region 9 km W Milo (CT)

A magnitude ML 1.6 earthquake occured in region: 9 km W Milo (CT), on

  • 31-08-2020 10:32:04 (UTC)
  • 31-08-2020 12:32:04 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.75, 15.02 at 0 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
Milo CT 9 1087 1087
Zafferana Etnea CT 10 9517 10604
Sant'Alfio CT 11 1582 12186
Santa Venerina CT 13 8592 20778
Ragalna CT 15 3924 24702
Nicolosi CT 15 7463 32165
Pedara CT 15 14102 46267
Giarre CT 15 27659 73926
Linguaglossa CT 16 5403 79329
Trecastagni CT 16 10910 90239
Randazzo CT 16 10900 101139
Maletto CT 16 3920 105059
Piedimonte Etneo CT 16 3963 109022
Mascali CT 16 14282 123304
Bronte CT 17 19172 142476
Viagrande CT 17 8563 151039
Riposto CT 17 14838 165877
Biancavilla CT 17 24007 189884
Moio Alcantara ME 17 717 190601
Belpasso CT 18 28108 218709
Fiumefreddo di Sicilia CT 18 9623 228332
Castiglione di Sicilia CT 18 3215 231547
Santa Maria di Licodia CT 18 7641 239188
Aci Sant'Antonio CT 18 17984 257172
Aci Bonaccorsi CT 19 3524 260696
Adrano CT 19 36122 296818
San Pietro Clarenza CT 19 7743 304561
Santa Domenica Vittoria ME 19 980 305541
Malvagna ME 20 733 306274
Mascalucia CT 20 31958 338232
Aci Catena CT 20 29851 368083
Tremestieri Etneo CT 20 20589 388672
Camporotondo Etneo CT 20 5023 393695
Acireale CT 20 52622 446317

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km NW of Acireale (52622 inhabitants)
28 Km N of Catania (314555 inhabitants)
68 Km SW of Reggio di Calabria (183035 inhabitants)
69 Km SW of Messina (238439 inhabitants)
80 Km N of Siracusa (122291 inhabitants)
89 Km E of Caltanissetta (63360 inhabitants)
95 Km N of Ragusa (73313 inhabitants)
98 Km NE 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 1.6 2020-08-31
10:32:04
37.75 15.01 0 2020-11-19
12:37:07
Bollettino Sismico Italiano INGV 84740711
Reviewed
Rev200
ML 1.6 2020-08-31
10:32:03
37.76 14.99 1 2020-11-15
02:59:44
Sala Operativa INGV_OE (Catania) 82491271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-31 10:32:04 ± 0.13
Latitude 37.75 ± 0.01
Longitude 15.01 ± 0.01
Depth (km) 0 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 84740711

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 890
Semi-minor axis of confidence ellipse (meter) 460
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 129
Circular confidence region, given by single value of horizontal uncertainty (meter) 890
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 151
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
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) 0.02248
Epicentral distance of station farthest from the epicenter (degree) 0.35613
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations
Type of magnitude ML
Reference to an origin 82491271
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2020-08-31 10:42:31

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 84740711
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-11-15 02:59:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.GALF.HHZ. 2020-08-31T10:32:13.00 0.3 undecidable manual P 264 0.3561 90 0.57 63
IV.MUCR.HHZ. 2020-08-31T10:32:11.50 0.3 undecidable manual P 339 0.3157 90 -0.03 72
IV.EMSG.HHZ. 2020-08-31T10:32:08.59 0.6 undecidable manual S 325 0.0899 91 0.63 43
IV.EPZF.HHZ. 2020-08-31T10:32:07.66 0.1 undecidable manual P 302 0.1466 90 -0.1 98
IV.ESLN.HHZ. 2020-08-31T10:32:07.28 0.3 undecidable manual S 211 0.063 91 0.36 71
IV.EPIT.HHN. 2020-08-31T10:32:07.85 0.6 undecidable manual S 27 0.0719 91 0.57 44
IV.EPIT.HHN. 2020-08-31T10:32:06.01 0.1 undecidable manual P 27 0.0719 91 -0.1 99
IV.EMSG.HHZ. 2020-08-31T10:32:06.12 0.1 undecidable manual P 325 0.0899 91 -0.38 93
IV.ECHR.HHE. 2020-08-31T10:32:06.99 0.3 undecidable manual P 233 0.1007 91 0.23 72
IV.EMCN.HNZ. 2020-08-31T10:32:06.44 0.3 undecidable manual S 19 0.0468 92 0.15 74
IV.ECBD.HHN. 2020-08-31T10:32:06.03 0.1 undecidable manual P 60 0.0657 91 0.07 100
IV.EMCN.HNZ. 2020-08-31T10:32:05.24 0.1 undecidable manual P 19 0.0468 92 -0.3 96
IV.ESLN.HHZ. 2020-08-31T10:32:05.66 0.1 undecidable manual P 211 0.063 91 -0.24 97
IV.ECPN.HHZ. 2020-08-31T10:32:05.36 0.3 undecidable manual S 261 0.0225 93 -0.02 76
IV.ECPN.HHZ. 2020-08-31T10:32:04.63 0.1 undecidable manual P 261 0.0225 93 -0.38 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EMSG.HHN. ML:2.4 0.003195 0.42 AML other m 2020-08-31T10:32:10.25
IV.EMSG.HHE. ML:2.3 0.00269 0.9 AML other m 2020-08-31T10:32:10.57
IV.EPZF.HHE. ML:1.7 0.0005935 0.36 AML other m 2020-08-31T10:32:14.63
IV.EPZF.HHN. ML:1.8 0.0007 0.6 AML other m 2020-08-31T10:32:15.29
IV.MUCR.HHE. ML:1.2 7.645E-5 0.86 AML other m 2020-08-31T10:32:21.50
IV.MUCR.HHN. ML:1.4 0.0001159 1.2 AML other m 2020-08-31T10:32:21.79
IV.GALF.HHE. ML:1.8 0.000233 0.66 AML other m 2020-08-31T10:32:29.62
IV.GALF.HHN. ML:1.8 0.0002095 0.68 AML other m 2020-08-31T10:32:31.52
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download