Earthquake with magnitude of ML 1.9 on date 26-01-2021 and time 08:31:48 (Italy) in region 3 km NW Randazzo (CT)

A magnitude ML 1.9 earthquake occured in region: 3 km NW Randazzo (CT), on

  • 26-01-2021 07:31:48 (UTC)
  • 26-01-2021 08:31:48 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.9030, 14.9290 at 33 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 3 10900 10900
Santa Domenica Vittoria ME 3 980 11880
Roccella Valdemone ME 8 666 12546
Floresta ME 10 485 13031
Maletto CT 10 3920 16951
Moio Alcantara ME 11 717 17668
Malvagna ME 11 733 18401
Maniace CT 12 3765 22166
Bronte CT 15 19172 41338
Montalbano Elicona ME 16 2287 43625
Ucria ME 17 1058 44683
San Piero Patti ME 17 2915 47598
Tortorici ME 17 6435 54033
Raccuja ME 17 1041 55074
Castiglione di Sicilia CT 17 3215 58289
Francavilla di Sicilia ME 18 3945 62234

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km NW of Acireale (52622 inhabitants)
47 Km N of Catania (314555 inhabitants)
64 Km SW of Messina (238439 inhabitants)
67 Km W of Reggio di Calabria (183035 inhabitants)
89 Km NE of Caltanissetta (63360 inhabitants)
99 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 1.9 2021-01-26
07:31:48
37.9033 14.9287 33 2021-07-12
16:54:59
Bollettino Sismico Italiano INGV 87272231
Reviewed
Rev100
ML 1.8 2021-01-26
07:31:48
37.9063 14.9188 32 2021-01-26
07:47:23
Sala Sismica INGV-Roma 86588691
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-26 07:31:48 ± 0.24
Latitude 37.9033 ± 0.0063
Longitude 14.9287 ± 0.0114
Depth (km) 33 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 87272231

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1029
Semi-minor axis of confidence ellipse (meter) 450
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 80
Circular confidence region, given by single value of horizontal uncertainty (meter) 1030.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 69
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.08454
Epicentral distance of station farthest from the epicenter (degree) 0.64302
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 87272231
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-03-05 13:34:38

ML:1.8

Field Value
Value 1.8
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 86588691
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-26 07:47:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HAGA.HHZ. 2021-01-26T07:32:10.41 0.3 undecidable manual S 164 71.373 110 -0.32 64
IV.HLNI.HHZ. 2021-01-26T07:32:08.00 0.1 undecidable manual S 185 61.7937 113 -0.33 87
IV.HAGA.HHZ. 2021-01-26T07:32:01.07 0.1 undecidable manual P 164 71.373 110 -0.12 90
IV.MSFR.HHE. 2021-01-26T07:32:01.80 0.6 undecidable manual S 296 32.8449 131 0.06 49
IV.MSRU.HHE. 2021-01-26T07:32:00.53 0.6 undecidable manual P 52 64.491 112 0.34 44
IV.AIO.HHZ. 2021-01-26T07:32:00.50 0.6 undecidable manual S 74 27.6501 137 -0.25 48
IV.HLNI.HHZ. 2021-01-26T07:31:59.86 0.3 positive manual P 185 61.7937 113 0.06 71
IV.EPZF.HHZ. 2021-01-26T07:31:58.70 0.3 undecidable manual S 215 10.7781 160 0.35 73
IV.ECTS.HHZ. 2021-01-26T07:31:58.80 1.0 undecidable manual S 98 16.9719 150 -0.24 25
IV.MUCR.HHZ. 2021-01-26T07:31:58.30 0.3 undecidable manual S 343 16.1727 152 -0.64 68
IV.MPNC.HHZ. 2021-01-26T07:31:57.80 0.1 positive manual P 54 45.8208 121 0.18 94
IV.MSFR.HHE. 2021-01-26T07:31:56.01 0.6 undecidable manual P 296 32.8449 131 0.01 50
IV.GALF.HHE. 2021-01-26T07:31:56.98 1.0 undecidable manual P 236 38.2284 127 0.33 23
IV.AIO.HHZ. 2021-01-26T07:31:55.36 0.1 positive manual P 74 27.6501 137 -0.06 100
IV.EPZF.HHZ. 2021-01-26T07:31:54.23 0.3 undecidable manual P 215 10.7781 160 0.19 75
IV.EMSG.HHZ. 2021-01-26T07:31:54.36 0.3 undecidable manual P 169 9.3795 163 0.39 72
IV.MUCR.HHZ. 2021-01-26T07:31:54.06 0.1 undecidable manual P 343 16.1727 152 -0.32 97
IV.ECTS.HHZ. 2021-01-26T07:31:54.52 0.6 undecidable manual P 98 16.9719 150 0.08 51
IV.EMNR.HHZ. 2021-01-26T07:31:54.71 0.3 undecidable manual P 138 12.876 157 0.56 69
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MUCR.HHN. ML:1.9 0.00032249709999999997 0.3392 AML other m 2021-01-26T07:31:58.75
IV.MUCR.HHE. ML:1.6 0.0001609237 0.32 AML other m 2021-01-26T07:31:59.39
IV.EPZF.HHN. ML:2.6 0.0017411505 0.4032 AML other m 2021-01-26T07:31:59.74
IV.EPZF.HHE. ML:2.5 0.0015087014999999998 0.3968 AML other m 2021-01-26T07:31:59.62
IV.AIO.HHN. ML:1.7 0.0001814183 0.2176 AML other m 2021-01-26T07:32:00.75
IV.AIO.HHE. ML:1.7 0.000172060915 0.2048 AML other m 2021-01-26T07:32:03.30
IV.MPNC.HHN. ML:2.0 0.00022314715 1.2832 AML other m 2021-01-26T07:32:07.68
IV.HLNI.HHE. ML:1.7 0.000091498055 0.16 AML other m 2021-01-26T07:32:08.39
IV.HLNI.HHN. ML:1.8 0.00010484659500000001 0.1408 AML other m 2021-01-26T07:32:08.80
IV.MPNC.HHE. ML:1.9 0.00019257849999999998 1.52 AML other m 2021-01-26T07:32:09.00
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