Earthquake with magnitude of ML 1.4 on date 27-03-2021 and time 21:03:34 (UTC) in region 3 km N Ragalna (CT)

A magnitude ML 1.4 earthquake occured in region: 3 km N Ragalna (CT), on

  • 27-03-2021 21:03:34 (UTC)
  • 27-03-2021 22:03:34 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.657, 14.944 at 9 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
Ragalna CT 3 3924 3924
Santa Maria di Licodia CT 7 7641 11565
Biancavilla CT 7 24007 35572
Belpasso CT 8 28108 63680
Nicolosi CT 9 7463 71143
PaternĂ² CT 10 48228 119371
Adrano CT 10 36122 155493
Pedara CT 11 14102 169595
Camporotondo Etneo CT 11 5023 174618
San Pietro Clarenza CT 12 7743 182361
Trecastagni CT 13 10910 193271
Mascalucia CT 13 31958 225229
Viagrande CT 14 8563 233792
Tremestieri Etneo CT 15 20589 254381
Zafferana Etnea CT 15 9517 263898
Gravina di Catania CT 15 25838 289736
Aci Bonaccorsi CT 16 3524 293260
San Giovanni la Punta CT 16 23060 316320
Misterbianco CT 16 49410 365730
Motta Sant'Anastasia CT 16 12116 377846
Sant'Agata li Battiati CT 16 9479 387325
Milo CT 17 1087 388412
Aci Sant'Antonio CT 17 17984 406396
Bronte CT 18 19172 425568
Santa Venerina CT 18 8592 434160
San Gregorio di Catania CT 18 11966 446126
Centuripe EN 18 5470 451596
Valverde CT 18 7840 459436
Aci Catena CT 19 29851 489287

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km W of Acireale (52622 inhabitants)
21 Km NW of Catania (314555 inhabitants)
73 Km NW of Siracusa (122291 inhabitants)
80 Km SW of Reggio di Calabria (183035 inhabitants)
80 Km E of Caltanissetta (63360 inhabitants)
80 Km SW of Messina (238439 inhabitants)
83 Km N of Ragusa (73313 inhabitants)
86 Km NE of Vittoria (63339 inhabitants)
90 Km NE of Gela (75827 inhabitants)
90 Km N of Modica (54633 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 1.4 2021-03-27
21:03:34
37.6573 14.9435 9 2021-07-12
16:55:08
Bollettino Sismico Italiano INGV 89427591
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-27 21:03:34 ± 0.09
Latitude 37.6573 ± 0.0045
Longitude 14.9435 ± 0.0057
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 89427591

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 474
Semi-minor axis of confidence ellipse (meter) 388
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 113
Circular confidence region, given by single value of horizontal uncertainty (meter) 470
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 56
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 31
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.03058
Epicentral distance of station farthest from the epicenter (degree) 0.38041
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 20
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 89427591
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-07-09 13:49:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.HCRL.HHN. 2021-03-27T21:03:42.53 0.1 undecidable manual P 169 0.3804 50 -0.02 93
IV.HLNI.HHE. 2021-03-27T21:03:41.11 0.6 undecidable manual P 190 0.3139 50 -0.3 45
IV.ECBD.HHN. 2021-03-27T21:03:41.19 0.6 undecidable manual S 43 0.1664 116 -0.34 46
IV.GALF.HHZ. 2021-03-27T21:03:41.54 1.0 undecidable manual P 280 0.3031 50 0.32 22
IV.EMSG.HHZ. 2021-03-27T21:03:41.12 0.6 undecidable manual S 2 0.1637 117 -0.29 46
IV.EMFO.HHE. 2021-03-27T21:03:40.92 0.6 undecidable manual S 56 0.1403 120 0.31 46
IV.ESCV.HHZ. 2021-03-27T21:03:40.39 0.6 undecidable manual S 311 0.1349 121 -0.07 48
IV.EMSG.HHZ. 2021-03-27T21:03:39.10 0.6 undecidable manual P 2 0.1637 117 0.67 41
IV.EMNR.HHZ. 2021-03-27T21:03:39.03 0.6 undecidable manual P 22 0.1718 115 0.42 45
IV.EPIT.HHN. 2021-03-27T21:03:39.14 0.3 undecidable manual P 30 0.1781 115 0.42 67
IV.EPZF.HHZ. 2021-03-27T21:03:38.88 0.6 undecidable manual P 338 0.1799 115 0.12 48
IV.EMFS.HHE. 2021-03-27T21:03:38.74 0.3 undecidable manual S 35 0.0755 137 0.08 73
IV.ENIC.HHZ. 2021-03-27T21:03:38.57 0.6 undecidable manual S 113 0.0674 141 0.12 49
IV.ESCV.HHZ. 2021-03-27T21:03:38.06 0.6 undecidable manual P 311 0.1349 121 0.18 47
IV.ESML.HHZ. 2021-03-27T21:03:38.57 0.6 undecidable manual S 232 0.0639 142 0.19 48
IV.ESPC.HHN. 2021-03-27T21:03:38.47 0.3 undecidable manual S 62 0.0746 138 -0.18 72
IV.ECBD.HHN. 2021-03-27T21:03:38.16 0.6 undecidable manual P 43 0.1664 116 -0.34 45
IV.EMCN.HHN. 2021-03-27T21:03:38.05 0.1 undecidable manual P 28 0.1511 118 -0.15 95
IV.ESLN.HHZ. 2021-03-27T21:03:38.07 0.3 undecidable manual S 34 0.0432 152 0.13 73
IV.ECZM.HHN. 2021-03-27T21:03:38.54 0.3 undecidable manual S 337 0.08 136 -0.25 71
IV.ENIC.HHZ. 2021-03-27T21:03:37.15 0.6 undecidable manual P 113 0.0674 141 0.43 46
IV.ESVO.HHE. 2021-03-27T21:03:37.93 0.1 undecidable manual P 1 0.116 125 0.41 91
IV.EMPL.HHZ. 2021-03-27T21:03:37.84 0.3 undecidable manual S 44 0.0306 160 0.11 74
IV.EMFO.HHE. 2021-03-27T21:03:37.63 0.1 undecidable manual P 56 0.1403 120 -0.34 92
IV.EMPL.HHZ. 2021-03-27T21:03:36.30 0.1 positive manual P 44 0.0306 160 -0.01 100
IV.ESLN.HHZ. 2021-03-27T21:03:36.32 0.3 undecidable manual P 34 0.0432 152 -0.11 73
IV.ECHR.HHE. 2021-03-27T21:03:36.02 0.1 undecidable manual P 320 0.0378 155 -0.35 93
IV.ECZM.HHN. 2021-03-27T21:03:36.75 0.1 undecidable manual P 337 0.08 136 -0.17 96
IV.EMFS.HHE. 2021-03-27T21:03:36.81 0.6 undecidable manual P 35 0.0755 137 -0.04 49
IV.ESML.HHZ. 2021-03-27T21:03:36.62 0.6 undecidable manual P 232 0.0639 142 -0.07 49
IV.ESPC.HHN. 2021-03-27T21:03:36.66 0.6 undecidable manual P 62 0.0746 138 -0.18 48
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ESML.HHN. ML:1.3 0.0002875 0.36 AML other m 2021-03-27T21:03:40.47
IV.ESML.HNN. ML:1.2 0.0002625 0.36 AML other m 2021-03-27T21:03:40.30
IV.ESML.HHE. ML:1.4 0.000423 0.5 AML other m 2021-03-27T21:03:41.50
IV.ESML.HNE. ML:1.4 0.000413 0.52 AML other m 2021-03-27T21:03:41.26
IV.EMPL.HHE. ML:0 0.00184 0.18 AML other m 2021-03-27T21:03:41.55
IV.ENIC.HHE. ML:1.4 0.0004435 1.4 AML other m 2021-03-27T21:03:42.02
IV.ESCV.HHE. ML:1.4 0.0002285 0.22 AML other m 2021-03-27T21:03:43.11
IV.EMPL.HHN. ML:0 0.00208 0.16 AML other m 2021-03-27T21:03:43.22
IV.ENIC.HHN. ML:1.5 0.000542 0.72 AML other m 2021-03-27T21:03:43.84
IV.ESCV.HHN. ML:1.4 0.0002415 0.72 AML other m 2021-03-27T21:03:44.92
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