Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of mb 4.8 on date 12-03-2021 and time 22:28:45 (Italy) in region Macedonia [Land]

A magnitude mb 4.8 earthquake occured in region: Macedonia [Land], on

  • 12-03-2021 21:28:45 (UTC)
  • 12-03-2021 22:28:45 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.6300, 20.7100 at 20 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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.

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Municipalities within 20 km from the epicenter

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

No Italian municipalities within 100 km from the epicenter with at least 50000 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
Reviewed
Rev100 		mb 4.8
Mwp 4.7 		2021-03-12
21:28:45		 41.6303 20.7104 20 2021-03-12
21:41:32		 Sala Sismica INGV-Roma 88060011
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-12 21:28:45
Latitude 41.6303
Longitude 20.7104
Depth (km) 20 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 88060011

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2911
Semi-minor axis of confidence ellipse (meter) 201
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 45
Circular confidence region, given by single value of horizontal uncertainty (meter) 2354.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 85.6072
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) 1.29167
Epicentral distance of station closest to the epicenter (degree) 1.34101
Epicentral distance of station farthest from the epicenter (degree) 13.24842
Number of stations at which the event was observed 33
Number of stations from which data was used for origin computation 33
Magnitudes information

Mwp:4.7

Field Value
Value 4.7
Uncertainty 0.1
Num. used stations 7
Type of magnitude Mwp
Reference to an origin 88060011
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-03-12 21:41:32

mb:4.8

Field Value
Value 4.8
Uncertainty 0.2
Num. used stations 22
Type of magnitude mb
Reference to an origin 88060011
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-03-12 21:41:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
RD.LOR.BHZ. 2021-03-12T21:31:51.10 10.0 positive automatic P 301 13.2484 -0.996558 0.980392
G.SSB.BHZ.00 2021-03-12T21:31:37.55 10.0 positive automatic P 293 12.2659 -1.1505 0.909091
G.ECH.BHZ.00 2021-03-12T21:31:29.60 10.0 positive automatic P 309 11.6109 -0.126122 0.909091
II.BFO.BHZ.00 2021-03-12T21:31:21.62 10.0 negative automatic P 312 11.0033 0.2054 0.952381
MN.BNI.BHZ. 2021-03-12T21:31:19.82 10.0 negative automatic P 293 10.7467 1.78273 0.952381
IV.MONC.BHZ. 2021-03-12T21:31:07.44 10.0 positive automatic P 295 9.8990 1.16051 0.952381
OE.DAVA.BHZ. 2021-03-12T21:31:03.62 10.0 positive automatic P 310 9.5638 1.74416 0.952381
MN.TUE.BHZ. 2021-03-12T21:31:01.60 10.0 negative automatic P 305 9.4804 0.805979 0.963855
CZ.KHC.BHZ. 2021-03-12T21:30:56.30 10.0 positive automatic P 329 9.0103 2.17218 0.869565
IV.BOB.BHZ. 2021-03-12T21:30:50.90 10.0 positive automatic P 295 8.7797 -0.108511 0.952381
IV.SALO.BHZ. 2021-03-12T21:30:44.00 10.0 positive automatic P 302 8.3736 -0.389343 0.952381
MN.VLC.BHZ. 2021-03-12T21:30:40.12 10.0 positive automatic P 292 7.9681 0.305521 0.909091
KO.MDUB.BHZ. 2021-03-12T21:30:40.58 10.0 negative automatic P 95 7.9877 0.402503 0.961538
OE.KBA.BHZ. 2021-03-12T21:30:35.07 10.0 positive automatic P 318 7.5707 0.509343 0.930233
MN.CLTB.BHZ. 2021-03-12T21:30:27.70 10.0 positive automatic P 237 7.0496 0.423076 0.952381
OE.ARSA.BHZ. 2021-03-12T21:30:22.72 10.0 positive automatic P 328 6.7270 -0.0634588 0.952381
IV.MGAB.BHZ. 2021-03-12T21:30:20.05 10.0 positive automatic P 284 6.4870 0.564826 0.909091
GE.PSZ.BHZ. 2021-03-12T21:30:15.35 10.0 positive automatic P 355 6.3144 -1.82916 0.930233
GE.APE.BHZ. 2021-03-12T21:30:11.24 10.0 positive automatic P 139 5.8882 -0.0337535 0.952381
HU.LTVH.BHZ. 2021-03-12T21:30:11.69 10.0 positive automatic P 8 5.8164 1.48588 0.909091
MN.AQU.BHZ. 2021-03-12T21:30:06.02 10.0 negative automatic P 280 5.4757 0.406841 0.952381
KO.DKL.BHZ. 2021-03-12T21:30:04.60 10.0 positive automatic P 116 5.3678 0.581829 0.961538
MN.CEL.BHZ. 2021-03-12T21:29:57.67 10.0 positive automatic P 229 4.9975 -1.36964 0.952381
HU.KOVH.BHZ. 2021-03-12T21:29:55.20 10.0 positive automatic P 338 4.8382 -1.58138 0.930233
HL.ITM.HHZ. 2021-03-12T21:29:53.76 10.0 positive automatic P 168 4.5491 0.926981 0.970874
MN.BLY.BHZ. 2021-03-12T21:29:46.77 10.0 positive automatic P 322 4.0408 0.954521 0.952381
MN.CUC.BHZ. 2021-03-12T21:29:45.52 10.0 positive automatic P 248 4.0491 -0.475608 0.909091
MN.BZS.BHZ. 2021-03-12T21:29:43.22 10.0 positive automatic P 9 4.0446 -2.64912 0.909091
MN.TIP.BHZ. 2021-03-12T21:29:42.22 10.0 positive automatic P 232 3.8803 -1.47865 0.888889
GE.MATE.BHZ. 2021-03-12T21:29:32.90 10.0 negative automatic P 253 3.1720 -1.01844 0.952381
HT.AGG.HHZ. 2021-03-12T21:29:30.37 10.0 negative automatic P 154 2.8883 0.333492 0.123153
HT.LIT.HHZ. 2021-03-12T21:29:20.16 10.0 negative automatic P 138 2.0347 1.87689 0.176523
MN.PDG.BHZ. 2021-03-12T21:29:05.12 10.0 positive automatic ScP 307 1.3410 -3.53393 0.43956
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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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