Earthquake with magnitude of ML 2.5 on date 05-04-2021 and time 00:43:31 (UTC) in region Costa Croata Settentrionale (CROAZIA)

A magnitude ML 2.5 earthquake occured in region: Costa Croata Settentrionale (CROAZIA), on

  • 05-04-2021 00:43:31 (UTC)
  • 05-04-2021 02:43:31 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.3440, 14.6080 at 11 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
74 Km E of Trieste (204420 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 2.5 2021-04-05
00:43:31
45.3435 14.6083 11 2021-07-12
16:55:08
Bollettino Sismico Italiano INGV 89414501
Reviewed
Rev100
ML 2.5 2021-04-05
00:43:30
45.3012 14.6003 7 2021-04-05
00:54:18
Sala Sismica INGV-Roma 88778421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-05 00:43:31 ± 0.1
Latitude 45.3435 ± 0.0063
Longitude 14.6083 ± 0.0090
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 89414501

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1020
Semi-minor axis of confidence ellipse (meter) 184
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 44
Circular confidence region, given by single value of horizontal uncertainty (meter) 1020.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 212
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 33
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.47934
Epicentral distance of station farthest from the epicenter (degree) 2.64041
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 22
Magnitudes information

ML:2.5

Field Value
Value 2.5
Uncertainty 0.2
Num. used stations 19
Type of magnitude ML
Reference to an origin 89414501
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-05-14 13:27:32

ML:2.5

Field Value
Value 2.5
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 88778421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-05 00:54:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
OX.PLRO.HNZ. 2021-04-05T00:44:20.30 1.0 undecidable manual S 320 174.8916 50 -0.47 17
OX.BOO.HNE. 2021-04-05T00:44:17.02 0.3 undecidable manual S 313 159.2184 50 0.43 55
RF.GEPF.HHZ. 2021-04-05T00:44:15.68 0.6 undecidable manual S 313 153.6351 50 0.58 36
ST.VARA.EHZ. 2021-04-05T00:44:15.09 0.3 undecidable manual P 282 293.0844 38 0.36 21
IV.PTCC.HHE. 2021-04-05T00:44:15.03 0.6 undecidable manual S 321 152.736 50 0.17 40
OX.BAD.HHE. 2021-04-05T00:44:13.29 1.0 undecidable manual S 314 144.5442 50 0.6 18
OX.PRED.HHE. 2021-04-05T00:44:12.11 0.6 undecidable manual S 327 146.1426 50 -1 32
NI.VINO.HHZ. 2021-04-05T00:44:12.95 0.6 undecidable manual S 315 144.3444 50 0.33 40
ST.DOSS.HHZ. 2021-04-05T00:44:12.15 0.3 undecidable manual P 284 271.9278 38 0.04 29
OX.CIMO.HNZ. 2021-04-05T00:44:02.29 0.6 undecidable manual P 303 198.7455 38 -0.7 28
OX.SABO.HHE. 2021-04-05T00:44:01.41 0.6 undecidable manual S 314 104.0181 50 -0.45 43
OX.CLUD.HHZ. 2021-04-05T00:44:01.05 0.3 undecidable manual P 313 181.7847 38 0.17 52
OX.CAE.HHZ. 2021-04-05T00:44:01.11 0.3 undecidable manual P 294 183.6828 38 -0.01 54
OX.MLN.HNE. 2021-04-05T00:44:00.19 0.3 undecidable manual P 301 178.2882 38 -0.26 53
NI.POLC.HHZ. 2021-04-05T00:44:00.81 0.1 undecidable manual P 296 180.0864 38 0.14 71
IV.STAL.HHZ. 2021-04-05T00:44:00.01 0.3 undecidable manual P 305 178.5879 38 -0.47 50
OX.PLRO.HNZ. 2021-04-05T00:44:00.75 0.3 undecidable manual P 320 174.8916 50 0.75 46
OX.FUSE.HHZ. 2021-04-05T00:43:59.61 0.6 undecidable manual P 314 171.7947 50 0.08 37
OX.MPRI.HHZ. 2021-04-05T00:43:58.21 0.3 undecidable manual P 309 160.0176 50 0.49 54
OX.BOO.HNE. 2021-04-05T00:43:57.82 0.3 undecidable manual P 313 159.2184 50 0.23 58
RF.GEPF.HHZ. 2021-04-05T00:43:57.08 0.1 undecidable manual P 313 153.6351 50 0.35 77
IV.PTCC.HHE. 2021-04-05T00:43:57.22 0.3 undecidable manual P 321 152.736 50 0.63 53
OX.BAD.HHE. 2021-04-05T00:43:55.78 0.1 undecidable manual P 314 144.5442 50 0.44 78
OX.PRED.HHE. 2021-04-05T00:43:55.45 0.3 undecidable manual P 327 146.1426 50 -0.13 62
NI.VINO.HHZ. 2021-04-05T00:43:55.66 0.1 undecidable manual P 315 144.3444 50 0.36 79
SL.LJU.BHE. 2021-04-05T00:43:54.90 0.6 undecidable manual S 355 77.9664 50 0 49
NI.DST2.HHE. 2021-04-05T00:43:52.66 0.6 undecidable manual S 299 71.8725 50 -0.62 44
OX.DRE.HHE. 2021-04-05T00:43:50.32 0.3 undecidable manual P 321 118.4925 50 -0.99 50
OX.SABO.HHE. 2021-04-05T00:43:48.04 0.1 undecidable manual P 314 104.0181 50 -1.04 67
SL.BOJS.BHE. 2021-04-05T00:43:47.99 0.3 undecidable manual S 70 53.2023 50 -0.3 70
SL.LJU.BHE. 2021-04-05T00:43:44.74 0.3 undecidable manual P 355 77.9664 50 -0.33 68
NI.DST2.HHE. 2021-04-05T00:43:43.01 0.3 undecidable manual P 299 71.8725 50 -1.12 52
SL.BOJS.BHE. 2021-04-05T00:43:41.47 0.1 undecidable manual P 70 53.2023 50 0.22 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.TRI.HHE. ML:2.1 0.00016549999999999998 0.32 AML other m 2021-04-05T00:43:53.81
MN.TRI.HHN. ML:1.9 0.00012240000000000002 0.64 AML other m 2021-04-05T00:43:54.54
NI.VINO.HHE. ML:2.5 0.00016140215 0.24 AML other m 2021-04-05T00:44:15.30
NI.VINO.HHN. ML:2.5 0.0001868964 0.28 AML other m 2021-04-05T00:44:15.48
RF.GEPF.HHN. ML:2.5 0.00014206205 0.28 AML other m 2021-04-05T00:44:17.40
RF.GEPF.HHE. ML:2.4 0.0001265308 0.3 AML other m 2021-04-05T00:44:17.59
OX.MPRI.HHN. ML:2.7 0.00021400000000000002 0.42 AML other m 2021-04-05T00:44:19.51
OX.MPRI.HNE. ML:2.4 0.00011444984999999999 0.56 AML other m 2021-04-05T00:44:19.79
OX.MPRI.HHE. ML:2.5 0.0001515 0.58 AML other m 2021-04-05T00:44:19.51
OX.CLUD.HNN. ML:2.4 0.00007767236 0.92 AML other m 2021-04-05T00:44:23.99
OX.CLUD.HHN. ML:2.3 0.0000747 0.86 AML other m 2021-04-05T00:44:24.82
IV.STAL.HHE. ML:2.7 0.000176 0.28 AML other m 2021-04-05T00:44:25.66
IV.STAL.HNE. ML:2.8 0.000236 0.22 AML other m 2021-04-05T00:44:25.66
IV.STAL.HHN. ML:2.7 0.00020604489999999996 0.26 AML other m 2021-04-05T00:44:26.05
IV.STAL.HNN. ML:2.9 0.0003205 0.28 AML other m 2021-04-05T00:44:26.18
OX.CLUD.HHE. ML:2.5 0.0001262 0.74 AML other m 2021-04-05T00:44:27.39
OX.CLUD.HNE. ML:2.6 0.00013909405 0.78 AML other m 2021-04-05T00:44:27.39
NI.POLC.HHE. ML:2.6 0.00013674945 0.34 AML other m 2021-04-05T00:44:28.01
NI.POLC.HHN. ML:2.7 0.0001716308 0.44 AML other m 2021-04-05T00:44:27.90
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