Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.5 on date 28-02-2021 and time 05:49:45 (Italy) in region Adriatico Centrale (MARE)

A magnitude ML 2.5 earthquake occured in region: Adriatico Centrale (MARE), on

  • 28-02-2021 04:49:45 (UTC)
  • 28-02-2021 05:49:45 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7320, 16.1630 at 8 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.

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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
Bulletin
Rev1000 		ML 2.5 2021-02-28
04:49:45		 42.7322 16.1632 8 2021-07-12
16:55:01		 Bollettino Sismico Italiano INGV 87964551
Reviewed
Rev100 		ML 3.0 2021-02-28
04:49:44		 42.9448 16.0802 38 2021-02-28
05:23:17		 Sala Sismica INGV-Roma 87560851
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-28 04:49:45 ± 0.13
Latitude 42.7322 ± 0.0054
Longitude 16.1632 ± 0.0122
Depth (km) 8 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 87964551

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1010
Semi-minor axis of confidence ellipse (meter) 570
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 262
Circular confidence region, given by single value of horizontal uncertainty (meter) 1010.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 85
Number of associated phases, regardless of their use for origin computation 58
Number of defining phases 58
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.77611
Epicentral distance of station farthest from the epicenter (degree) 2.14578
Number of stations at which the event was observed 44
Number of stations from which data was used for origin computation 44
Magnitudes information

ML:3.0

Field Value
Value 3.0
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 87560851
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-28 05:23:17

ML:2.5

Field Value
Value 2.5
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 87964551
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-05-25 10:06:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CIGN.HHN. 2021-02-28T04:50:30.35 0.3 undecidable manual S 221 158.0196 50 -0.54 64
MN.BLY.HHE. 2021-02-28T04:50:27.68 0.6 undecidable manual P 20 238.1838 38 5.38 1
IV.MELA.HHZ. 2021-02-28T04:50:26.92 0.6 undecidable manual S 217 142.1466 50 0.29 48
OT.OT05.EHZ. 2021-02-28T04:50:22.52 0.3 undecidable manual S 201 127.5723 50 -0.24 75
OT.OT07.EHE. 2021-02-28T04:50:22.77 0.3 undecidable manual S 197 128.4714 50 -0.22 75
OT.OT06.EHZ. 2021-02-28T04:50:22.13 0.3 undecidable manual S 202 125.1747 50 0.03 78
GE.MATE.HHN. 2021-02-28T04:50:22.06 0.6 undecidable manual P 169 235.3866 38 0.11 30
OT.OT04.EHE. 2021-02-28T04:50:21.17 0.3 undecidable manual S 203 122.0889 50 -0.11 77
OT.OT12.EHZ. 2021-02-28T04:50:21.74 0.3 undecidable manual S 190 123.8871 50 -0.01 79
IV.APRC.HHZ. 2021-02-28T04:50:20.43 0.3 undecidable manual S 205 119.4915 50 -0.16 77
IV.MF5.EHN. 2021-02-28T04:50:20.27 0.6 undecidable manual P 278 221.6115 38 0.03 34
IV.NOCI.HHN. 2021-02-28T04:50:20.28 0.6 undecidable manual P 161 228.105 38 -0.77 26
IV.AOI.HHE. 2021-02-28T04:50:20.82 0.6 undecidable manual P 295 226.3068 38 0 33
OT.OT03.EHE. 2021-02-28T04:50:20.80 0.3 undecidable manual S 201 120.6903 50 -0.12 77
IV.SGRT.HHZ. 2021-02-28T04:50:19.20 0.3 undecidable manual S 198 113.7972 50 0.14 78
IV.SNAL.HHZ. 2021-02-28T04:50:19.14 0.3 undecidable manual P 202 215.3178 38 -0.32 49
IV.MSAG.HHZ. 2021-02-28T04:50:19.51 0.3 undecidable manual S 191 115.0959 50 0.1 79
IV.MNTT.EHE. 2021-02-28T04:50:19.04 0.1 undecidable manual P 281 211.8324 38 0.02 72
IV.T0110.HHZ. 2021-02-28T04:50:18.07 0.3 undecidable manual P 255 203.0412 38 0.14 55
IV.AMUR.HHN. 2021-02-28T04:50:18.15 0.6 undecidable manual P 170 205.7385 38 -0.11 37
IV.GIGS.HHN. 2021-02-28T04:50:18.89 0.6 undecidable manual P 263 213.8193 38 -0.37 33
IV.TERO.HHN. 2021-02-28T04:50:18.74 0.3 undecidable manual P 268 209.0352 38 0.07 54
IX.RSF3.HNE. 2021-02-28T04:50:18.68 0.1 undecidable manual P 203 212.4318 38 -0.41 66
IV.SGG.HHN. 2021-02-28T04:50:18.16 0.3 undecidable manual P 225 209.4348 38 -0.56 48
IV.VULT.HHN. 2021-02-28T04:50:17.10 0.6 undecidable manual P 193 202.242 38 -0.73 31
IV.INTR.HHE. 2021-02-28T04:50:17.86 0.3 undecidable manual P 247 201.6426 38 0.11 56
IV.MRB1.HHZ. 2021-02-28T04:50:17.76 0.3 undecidable manual P 209 203.9403 38 -0.28 53
IV.CAFE.HHN. 2021-02-28T04:50:17.35 0.6 undecidable manual P 202 203.9403 38 -0.69 32
IV.VCEL.EHN. 2021-02-28T04:50:17.32 0.6 undecidable manual P 260 193.362 38 0.59 35
IV.SACR.HNN. 2021-02-28T04:50:16.09 0.3 undecidable manual P 220 190.5648 38 -0.29 58
IV.PALZ.HHN. 2021-02-28T04:50:16.85 0.6 undecidable manual P 185 199.0452 38 -0.58 34
IV.SGTA.HNZ. 2021-02-28T04:50:15.77 0.6 undecidable manual P 201 188.9664 38 -0.41 38
IV.MRVN.HHZ. 2021-02-28T04:50:15.04 0.3 undecidable manual P 179 185.37 38 -0.69 52
IV.TST01.HHZ. 2021-02-28T04:50:15.36 0.6 undecidable manual P 234 182.0844 38 0.04 42
IV.BIOG.HHZ. 2021-02-28T04:50:15.83 0.3 undecidable manual P 207 190.0653 38 -0.48 55
IV.BSSO.HHE. 2021-02-28T04:50:15.44 0.3 undecidable manual P 225 184.2711 38 -0.16 61
OT.OT14.EHN. 2021-02-28T04:50:14.16 0.3 undecidable manual S 193 95.0382 50 0.1 82
IV.LPEL.HHE. 2021-02-28T04:50:14.43 0.3 undecidable manual P 246 179.1873 38 -0.52 58
OT.OT13.EHN. 2021-02-28T04:50:13.90 0.3 undecidable manual S 179 94.4388 50 0 84
IV.MOCO.HNE. 2021-02-28T04:50:13.93 0.3 undecidable manual P 209 172.2942 50 0.01 67
IV.TST02.HHE. 2021-02-28T04:50:13.72 0.1 undecidable manual P 241 169.2972 50 0.26 86
IV.TRIV.HHN. 2021-02-28T04:50:13.96 0.3 undecidable manual P 232 170.2962 50 0.35 63
IV.CIGN.HHN. 2021-02-28T04:50:11.84 0.6 undecidable manual P 221 158.0196 50 0.11 47
IV.TREM.HHZ. 2021-02-28T04:50:11.91 0.3 undecidable manual S 219 86.1471 50 0.22 81
CR.STON.BHZ. 2021-02-28T04:50:11.06 1.0 undecidable manual P 82 125.9739 50 4.28 1
IV.MELA.HHZ. 2021-02-28T04:50:09.50 0.3 undecidable manual P 217 142.1466 50 0.23 72
OT.OT07.EHE. 2021-02-28T04:50:07.37 0.1 undecidable manual P 197 128.4714 50 0.2 100
OT.OT05.EHZ. 2021-02-28T04:50:07.11 0.3 undecidable manual P 201 127.5723 50 0.08 77
OT.OT06.EHZ. 2021-02-28T04:50:06.69 0.6 undecidable manual P 202 125.1747 50 0.04 52
OT.OT12.EHZ. 2021-02-28T04:50:06.65 0.3 undecidable manual P 190 123.8871 50 0.2 76
OT.OT03.EHE. 2021-02-28T04:50:06.09 0.3 undecidable manual P 201 120.6903 50 0.12 78
IV.APRC.HHZ. 2021-02-28T04:50:06.08 0.3 undecidable manual P 205 119.4915 50 0.3 75
OT.OT04.EHE. 2021-02-28T04:50:06.27 0.3 undecidable manual P 203 122.0889 50 0.09 78
IV.MSAG.HHZ. 2021-02-28T04:50:05.57 0.3 undecidable manual P 191 115.0959 50 0.47 73
IV.SGRT.HHZ. 2021-02-28T04:50:05.18 0.3 undecidable manual P 198 113.7972 50 0.28 76
OT.OT13.EHN. 2021-02-28T04:50:02.48 0.3 undecidable manual P 179 94.4388 50 0.56 74
OT.OT14.EHN. 2021-02-28T04:50:02.61 0.3 undecidable manual P 193 95.0382 50 0.6 72
IV.TREM.HHZ. 2021-02-28T04:50:00.91 0.6 undecidable manual P 219 86.1471 50 0.27 54
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SGRT.HHE. ML:2.7 0.00040300000000000004 0.34 AML other m 2021-02-28T04:50:07.57
IV.TREM.HNN. ML:2.8 0.0007490044499999999 0.4 AML other m 2021-02-28T04:50:10.82
IV.TREM.HNE. ML:2.5 0.00042643045000000004 4.3104 AML other m 2021-02-28T04:50:12.91
IV.TREM.HHE. ML:2.5 0.0003982159 1.0592 AML other m 2021-02-28T04:50:12.91
IV.TREM.HHN. ML:2.6 0.00053929825 3.3376 AML other m 2021-02-28T04:50:13.26
IV.SGRT.HHN. ML:2.4 0.0001821884 2.0192 AML other m 2021-02-28T04:50:20.18
IV.MSAG.HNN. ML:2.6 0.00030005195 0.6176 AML other m 2021-02-28T04:50:19.58
IV.MSAG.HNE. ML:2.4 0.0002011637 1.3792 AML other m 2021-02-28T04:50:20.69
IV.MSAG.HHN. ML:2.2 0.00012438599999999998 3.3792 AML other m 2021-02-28T04:50:20.97
IV.APRC.HHN. ML:2.7 0.00039850000000000004 0.72 AML other m 2021-02-28T04:50:21.82
IV.APRC.HHE. ML:2.4 0.00019800000000000002 0.6 AML other m 2021-02-28T04:50:21.78
IV.MSAG.HHE. ML:2.6 0.00029600000000000004 0.42 AML other m 2021-02-28T04:50:21.83
OT.OT12.EHE. ML:2.4 0.0001682592 1.3184 AML other m 2021-02-28T04:50:22.91
OT.OT05.EHN. ML:2.3 0.000134980045 0.3584 AML other m 2021-02-28T04:50:22.90
OT.OT12.EHN. ML:2.4 0.00018509775000000002 1.3184 AML other m 2021-02-28T04:50:22.98
OT.OT05.EHE. ML:2.6 0.00026149100000000003 0.4 AML other m 2021-02-28T04:50:23.71
IV.MELA.HHN. ML:2.8 0.0003666292 1.6576 AML other m 2021-02-28T04:50:28.39
IV.MELA.HHE. ML:2.9 0.00045110195000000003 4.4192 AML other m 2021-02-28T04:50:28.58
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