Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of mb 4.7 on date 20-03-2023 and time 15:02:17 (Italy) in region Romania

A magnitude mb 4.7 earthquake occured in region: Romania, on

  • 20-03-2023 14:02:17 (UTC)
  • 20-03-2023 15:02:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.0910, 23.2520 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 4.7
Mwp 4.7 		2023-03-20
14:02:17		 45.0914 23.252 20 2023-03-20
14:14:11		 Sala Sismica INGV-Roma 115564291
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-20 14:02:17
Latitude 45.0914
Longitude 23.2520
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 115564291

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2973
Semi-minor axis of confidence ellipse (meter) 460
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 71
Circular confidence region, given by single value of horizontal uncertainty (meter) 2427.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 55.0532
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 30
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.70428
Epicentral distance of station closest to the epicenter (degree) 1.24934
Epicentral distance of station farthest from the epicenter (degree) 36.40170
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 30
Magnitudes information

Mwp:4.7

Field Value
Value 4.7
Uncertainty 0.2
Num. used stations 8
Type of magnitude Mwp
Reference to an origin 115564291
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2023-03-20 14:14:11

mb:4.7

Field Value
Value 4.7
Uncertainty 0.2
Num. used stations 17
Type of magnitude mb
Reference to an origin 115564291
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2023-03-20 14:14:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
II.AAK.BHZ.00 2023-03-20T14:09:23.22 10.0 positive automatic P 75 36.4017 2.26318 0
GE.DAG.BHZ. 2023-03-20T14:09:17.41 10.0 positive automatic P 345 35.9342 0.720809 0.82775
DK.SCO.BHZ. 2023-03-20T14:08:57.85 10.0 positive automatic P 335 33.5159 2.05182 0.857151
II.ARTI.BHZ.00 2023-03-20T14:07:35.67 10.0 positive automatic P 50 24.5723 -0.54956 0.952381
II.BFO.BHZ.00 2023-03-20T14:04:52.97 10.0 negative automatic P 293 10.7115 2.98631 0.909091
RD.PGF.BHZ. 2023-03-20T14:04:49.36 10.0 negative automatic P 261 10.5773 1.1194 0.892857
OE.DAVA.BHZ. 2023-03-20T14:04:37.27 10.0 negative automatic P 288 9.5003 3.69737 0.930233
HL.ITM.HHZ. 2023-03-20T14:04:14.17 10.0 negative automatic P 188 7.9748 1.72002 0.961538
MN.CUC.BHZ. 2023-03-20T14:04:04.77 10.0 positive automatic P 230 7.4774 -0.891363 0.909091
PL.KSP.BHZ. 2023-03-20T14:04:04.61 10.0 positive automatic P 324 7.3948 0.132854 0.930233
OE.KBA.BHZ. 2023-03-20T14:04:01.42 10.0 positive automatic P 290 7.1471 0.106203 0.952381
IU.KIEV.BHZ.00 2023-03-20T14:03:58.32 10.0 positive automatic P 33 6.8871 0.844763 0.930233
IV.PTCC.BHZ. 2023-03-20T14:03:58.15 10.0 positive automatic P 284 7.0258 -1.32271 0.952381
GE.MATE.BHZ. 2023-03-20T14:03:55.00 10.0 positive automatic P 229 6.5349 3.30108 0.97561
GE.MORC.BHZ. 2023-03-20T14:03:45.35 10.0 positive automatic P 323 6.0677 -0.973125 0.930233
HT.AGG.HHZ. 2023-03-20T14:03:45.40 10.0 negative automatic P 187 6.1079 -1.45581 0.995025
OE.ARSA.BHZ. 2023-03-20T14:03:41.27 10.0 negative automatic P 295 5.7678 -0.906203 0.952381
PL.OJC.BHZ. 2023-03-20T14:03:39.99 10.0 positive automatic P 337 5.6293 -0.251443 0.909091
HT.LIT.HHZ. 2023-03-20T14:03:30.14 10.0 negative automatic P 187 5.0193 -1.74253 0.970874
PL.KWP.BHZ. 2023-03-20T14:03:26.05 10.0 positive automatic P 356 4.5547 0.56988 0.930233
HT.ALN.HHZ. 2023-03-20T14:03:26.37 10.0 positive automatic P 153 4.6672 -0.598834 0.961538
MN.BLY.BHZ. 2023-03-20T14:03:20.97 10.0 positive automatic P 268 4.3092 -1.10078 0.952381
HL.RDO.HHZ. 2023-03-20T14:03:20.92 10.0 positive automatic P 156 4.2833 -0.770545 0.985222
MN.PDG.BHZ. 2023-03-20T14:03:16.07 10.0 positive automatic P 229 3.9224 -0.646073 0.952381
GE.TIRR.BHZ. 2023-03-20T14:03:14.35 10.0 positive automatic P 98 3.7171 0.446567 0.97561
HU.KOVH.BHZ. 2023-03-20T14:03:12.30 10.0 positive automatic P 287 3.7397 -1.94877 0.952381
GE.PSZ.BHZ. 2023-03-20T14:03:11.35 10.0 positive automatic P 322 3.6507 -1.79078 0.952381
MN.DIVS.BHZ. 2023-03-20T14:02:56.27 10.0 positive automatic P 248 2.5248 -1.39392 0.97561
HU.LTVH.BHZ. 2023-03-20T14:02:56.69 10.0 positive automatic P 338 2.4764 -0.160919 0.952381
MN.BZS.BHZ. 2023-03-20T14:02:37.47 10.0 positive automatic P 296 1.2493 -2.52824 0.952381
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