Earthquake with magnitude of ML 1.8 on date 27-09-2020 and time 10:01:56 (Italy) in region 1 km E Randazzo (CT)

A magnitude ML 1.8 earthquake occured in region: 1 km E Randazzo (CT), on

  • 27-09-2020 08:01:56 (UTC)
  • 27-09-2020 10:01:56 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.8780, 14.9530 at 29 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
Randazzo CT 1 10900 10900
Santa Domenica Vittoria ME 4 980 11880
Roccella Valdemone ME 8 666 12546
Moio Alcantara ME 9 717 13263
Maletto CT 9 3920 17183
Malvagna ME 10 733 17916
Maniace CT 13 3765 21681
Floresta ME 13 485 22166
Bronte CT 14 19172 41338
Castiglione di Sicilia CT 15 3215 44553
Francavilla di Sicilia ME 16 3945 48498
Montalbano Elicona ME 17 2287 50785
Linguaglossa CT 17 5403 56188
San Piero Patti ME 19 2915 59103
Motta Camastra ME 19 845 59948
Ucria ME 20 1058 61006

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km NW of Acireale (52622 inhabitants)
43 Km N of Catania (314555 inhabitants)
64 Km SW of Messina (238439 inhabitants)
66 Km W of Reggio di Calabria (183035 inhabitants)
89 Km NE of Caltanissetta (63360 inhabitants)
96 Km NW of Siracusa (122291 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 1.8 2020-09-27
08:01:56
37.8778 14.9532 29 2021-02-26
14:56:11
Bollettino Sismico Italiano INGV 85784551
Reviewed
Rev200
ML 1.8 2020-09-27
08:01:56
37.877 14.95 30 2020-12-28
09:43:05
Sala Operativa INGV_OE (Catania) 83294211
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-27 08:01:56 ± 0.2
Latitude 37.8778 ± 0.0063
Longitude 14.9532 ± 0.0114
Depth (km) 29 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 85784551

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 908
Semi-minor axis of confidence ellipse (meter) 569
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 294
Circular confidence region, given by single value of horizontal uncertainty (meter) 910.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 65
Number of associated phases, regardless of their use for origin computation 38
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.72575
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 85784551
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-12-28 09:42:27

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 83294211
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2020-09-27 08:36:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.CANO.HHZ. 2020-09-27T08:03:18.00 3.0 undecidable manual Pn 4.51 0
AC.VLO.HHZ. 2020-09-27T08:03:09.27 3.0 undecidable manual Sn -8.65 0
IV.VVLD.HHZ. 2020-09-27T08:03:03.43 3.0 undecidable manual Sn -2.58 0
MN.PDG.HHZ. 2020-09-27T08:03:02.15 3.0 positive manual Pg 19.52 0
IV.ARVD.HHZ. 2020-09-27T08:03:02.14 3.0 undecidable manual Pg 19.190001 0
IV.NARO.HHZ. 2020-09-27T08:02:49.01 3.0 positive manual Pn 3.63 0
IV.CPOZ.HHZ. 2020-09-27T08:02:49.37 3.0 undecidable manual Sg 10.04 0
IV.MMUR.HNZ. 2020-09-27T08:02:39.60 3.0 undecidable manual Pn -2.47 0
IV.CRTO.HHZ. 2020-09-27T08:02:31.23 3.0 undecidable manual Sn -7.46 0
IV.MF5.EHZ. 2020-09-27T08:02:31.18 3.0 undecidable manual Pn -3.82 0
IV.VCEL.EHZ. 2020-09-27T08:02:25.45 3.0 undecidable manual Pn -0.9 0
IV.PTQR.HHZ. 2020-09-27T08:02:24.67 3.0 undecidable manual Pn 2.45 0
IV.SSY.HHZ. 2020-09-27T08:02:21.47 0.3 undecidable manual S 172 80.5638 105 0.25 63
IV.HCRL.HHZ. 2020-09-27T08:02:17.55 0.3 undecidable manual S 174 66.378 108 -0.02 67
IV.LRP.EHZ. 2020-09-27T08:02:16.00 3.0 undecidable manual Pn -0.8 0
IV.HLNI.HHZ. 2020-09-27T08:02:15.58 0.3 undecidable manual S 187 59.1963 111 -0.19 66
IV.SSY.HHZ. 2020-09-27T08:02:10.72 0.6 undecidable manual P 172 80.5638 105 -0.09 43
IV.CRTO.HHZ. 2020-09-27T08:02:09.97 3.0 negative manual Pg 5.64 0
IV.HCRL.HHZ. 2020-09-27T08:02:08.50 0.3 undecidable manual P 174 66.378 108 -0.21 65
IV.AIO.HHZ. 2020-09-27T08:02:08.32 0.6 undecidable manual S 67 26.5512 134 0.03 49
IV.NOV.HHZ. 2020-09-27T08:02:07.52 0.6 undecidable manual S 44 23.1546 138 -0.13 48
IV.HLNI.HHZ. 2020-09-27T08:02:07.36 0.1 undecidable manual P 187 59.1963 111 -0.31 86
IV.EPZF.HHZ. 2020-09-27T08:02:06.35 0.6 undecidable manual S 235 10.2786 159 0.52 46
IV.ECTS.HHZ. 2020-09-27T08:02:06.27 0.6 undecidable manual S 88 14.6742 151 -0.06 49
IV.MUCR.HHZ. 2020-09-27T08:02:06.80 0.6 undecidable manual S 339 19.5693 143 -0.25 47
IV.GALF.HHZ. 2020-09-27T08:02:06.13 0.6 undecidable manual P 241 38.628 122 1.3 30
IV.EMSG.HHZ. 2020-09-27T08:02:04.83 0.6 undecidable manual S 183 6.2937 167 -0.69 41
IV.MSFR.HHZ. 2020-09-27T08:02:04.53 0.3 undecidable manual P 299 36.0417 124 0.04 71
IV.AIO.HHZ. 2020-09-27T08:02:03.55 0.1 undecidable manual P 67 26.5512 134 0.2 94
IV.MUCR.HHZ. 2020-09-27T08:02:02.34 0.1 undecidable manual P 339 19.5693 143 -0.29 93
IV.EPIT.HHN. 2020-09-27T08:02:02.26 0.1 undecidable manual P 129 11.6772 156 0.25 96
IV.ECBD.HHN. 2020-09-27T08:02:02.71 0.3 undecidable manual P 133 15.9729 149 0.39 69
IV.NOV.HHZ. 2020-09-27T08:02:02.68 0.3 undecidable manual P 44 23.1546 138 -0.3 70
IV.ECTS.HHZ. 2020-09-27T08:02:02.16 0.1 undecidable manual P 88 14.6742 151 -0.06 98
IV.EMSG.HHZ. 2020-09-27T08:02:01.98 0.6 undecidable manual P 183 6.2937 167 0.23 48
IV.EPZF.HHZ. 2020-09-27T08:02:01.93 0.1 undecidable manual P 235 10.2786 159 0 100
IV.TDS.HHZ. 2020-09-27T08:01:50.36 3.0 undecidable manual Pn -3.87 0
XK.GIZZ.HHZ. 2020-09-27T08:01:45.56 3.0 positive manual Pn -1.01 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EPZF.HHN. ML:2.0 0.00044743500000000004 0.3392 AML other m 2020-09-27T08:02:06.61
IV.EPZF.HHE. ML:2.1 0.0006285325 0.32 AML other m 2020-09-27T08:02:06.64
IV.EMSG.HHN. ML:2.0 0.0005932147 0.3008 AML other m 2020-09-27T08:02:07.82
IV.MUCR.HHE. ML:1.2 0.00006562465000000001 0.2944 AML other m 2020-09-27T08:02:07.06
IV.MUCR.HHN. ML:1.5 0.00014714215 0.256 AML other m 2020-09-27T08:02:07.01
IV.AIO.HHE. ML:1.3 0.0000702604 0.4992 AML other m 2020-09-27T08:02:08.63
IV.HLNI.HHE. ML:1.6 0.0000644369 0.1024 AML other m 2020-09-27T08:02:15.91
IV.HLNI.HHN. ML:1.4 0.00005200690499999999 0.1216 AML other m 2020-09-27T08:02:16.12
IV.HCRL.HHE. ML:1.9 0.0001302055 0.1408 AML other m 2020-09-27T08:02:17.90
IV.HCRL.HHN. ML:1.8 0.00008848007999999999 0.2176 AML other m 2020-09-27T08:02:18.08
IV.SSY.HHN. ML:2.5 0.00037566644999999997 0.1984 AML other m 2020-09-27T08:02:23.35
IV.SSY.HHE. ML:2.2 0.0001813071 0.224 AML other m 2020-09-27T08:02:24.58
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