Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.5 on date 28-03-2021 and time 18:32:19 (Italy) in region Adriatico Centrale (MARE)

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

  • 28-03-2021 16:32:19 (UTC)
  • 28-03-2021 18:32:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6460, 16.1540 at 10 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 2021-03-28
16:32:19		 42.6465 16.1535 10 2021-07-12
16:55:10		 Bollettino Sismico Italiano INGV 89960571
Reviewed
Rev100 		ML 2.6 2021-03-28
16:32:19		 42.6732 16.1427 10 2021-03-28
16:54:04		 Sala Sismica INGV-Roma 88559261
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-28 16:32:19 ± 0.37
Latitude 42.6465 ± 0.0117
Longitude 16.1535 ± 0.0318
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 89960571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2718
Semi-minor axis of confidence ellipse (meter) 1104
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 287
Circular confidence region, given by single value of horizontal uncertainty (meter) 2720.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 316
Number of associated phases, regardless of their use for origin computation 39
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.75548
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:2.5

Field Value
Value 2.5
Uncertainty 0.3
Num. used stations 28
Type of magnitude ML
Reference to an origin 89960571
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-05-10 09:14:30

ML:2.6

Field Value
Value 2.6
Uncertainty 0.3
Num. used stations 23
Type of magnitude ML
Reference to an origin 88559261
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-28 16:54:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FIR.HHZ. 2021-03-28T16:34:08.80 3.0 undecidable manual Sn -9.99 0
IV.EUCT.HNZ. 2021-03-28T16:33:58.47 3.0 negative manual Pn -2.42 0
IV.ZEN8.EHZ. 2021-03-28T16:33:57.35 3.0 undecidable manual Pg 4.99 0
IV.CADC.EHZ. 2021-03-28T16:33:54.88 3.0 undecidable manual Pn -0.18 0
IV.NDIM.HNZ. 2021-03-28T16:33:49.51 3.0 undecidable manual Pg 5.18 0
IV.FREG.EHZ. 2021-03-28T16:33:48.40 3.0 positive manual Pg 1.69 0
IV.CAGR.HHZ. 2021-03-28T16:33:40.55 3.0 undecidable manual Pn -0.74 0
IV.CSNT.HHZ. 2021-03-28T16:33:22.65 3.0 undecidable manual Pn -8.18 0
IV.SPS2.HHZ. 2021-03-28T16:33:19.37 3.0 undecidable manual Pg 1.8 0
IV.SERS.HHZ. 2021-03-28T16:33:16.96 3.0 undecidable manual Pn -4.81 0
IV.TDS.HHZ. 2021-03-28T16:33:10.06 3.0 undecidable manual Pn -2.54 0
IV.MELA.HNN. 2021-03-28T16:32:58.61 0.3 undecidable manual S 219 134.1657 50 0.12 66
OT.OT06.EHZ. 2021-03-28T16:32:54.22 0.6 undecidable manual S 204 116.0949 50 0.56 41
OT.OT07.EHE. 2021-03-28T16:32:54.09 0.3 undecidable manual S 198 119.1918 50 -0.4 64
IV.CAFE.HHZ. 2021-03-28T16:32:53.20 0.1 undecidable manual P 203 194.8605 38 2.2 23
OT.OT05.EHZ. 2021-03-28T16:32:53.43 0.3 undecidable manual S 203 118.4925 50 -0.88 54
OT.OT04.EHZ. 2021-03-28T16:32:52.67 0.1 undecidable manual S 205 113.0979 50 -0.19 91
OT.OT03.EHZ. 2021-03-28T16:32:52.70 0.6 undecidable manual S 202 111.5994 50 0.24 45
IV.APRC.HHZ. 2021-03-28T16:32:52.42 0.6 undecidable manual S 207 110.6004 50 0.22 45
OT.OT12.EHZ. 2021-03-28T16:32:52.82 0.3 undecidable manual S 190 114.3966 50 -0.38 65
IV.MSAG.HHZ. 2021-03-28T16:32:51.46 0.6 undecidable manual S 191 105.6165 50 0.61 41
IV.SGRT.HHZ. 2021-03-28T16:32:50.60 0.3 undecidable manual S 199 104.5176 50 0.03 72
IV.BSSO.HHZ. 2021-03-28T16:32:50.29 3.0 negative manual P -2.48 0
OT.OT13.EHZ. 2021-03-28T16:32:46.21 0.3 undecidable manual S 179 84.9483 50 0.86 58
OT.OT14.EHZ. 2021-03-28T16:32:45.48 0.6 undecidable manual S 194 85.6476 50 -0.04 50
IV.CIGN.HHN. 2021-03-28T16:32:45.97 0.3 undecidable manual P 223 150.5382 50 1.26 42
IV.MELA.HNN. 2021-03-28T16:32:42.92 0.6 undecidable manual P 219 134.1657 50 0.73 37
OT.OT12.EHZ. 2021-03-28T16:32:39.30 0.1 undecidable manual P 190 114.3966 50 0.17 91
OT.OT06.EHZ. 2021-03-28T16:32:39.19 0.1 positive manual P 204 116.0949 50 -0.21 90
OT.OT07.EHE. 2021-03-28T16:32:39.51 0.1 undecidable manual P 198 119.1918 50 -0.37 87
OT.OT05.EHZ. 2021-03-28T16:32:39.03 0.1 undecidable manual P 203 118.4925 50 -0.75 76
IV.APRC.HHZ. 2021-03-28T16:32:38.33 0.1 positive manual P 207 110.6004 50 -0.23 91
OT.OT04.EHZ. 2021-03-28T16:32:38.60 0.1 positive manual P 205 113.0979 50 -0.34 88
OT.OT03.EHZ. 2021-03-28T16:32:38.86 0.3 undecidable manual P 202 111.5994 50 0.15 69
IV.SGRT.HHZ. 2021-03-28T16:32:37.31 0.1 positive manual P 199 104.5176 50 -0.31 90
IV.MSAG.HHZ. 2021-03-28T16:32:37.74 0.1 undecidable manual P 191 105.6165 50 -0.04 95
OT.OT13.EHZ. 2021-03-28T16:32:34.61 0.1 undecidable manual P 179 84.9483 50 0 100
OT.OT14.EHZ. 2021-03-28T16:32:34.98 0.6 undecidable manual P 194 85.6476 50 0.28 47
IV.TREM.HHZ. 2021-03-28T16:32:33.70 0.1 undecidable manual P 222 78.4659 50 0.1 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OT.OT13.EHN. ML:2.9 0.0010398770499999998 0.2816 AML other m 2021-03-28T16:32:47.75
OT.OT13.EHE. ML:2.6 0.0005774131 0.256 AML other m 2021-03-28T16:32:47.63
IV.SGRT.HHN. ML:2.8 0.0005484461 1.5136 AML other m 2021-03-28T16:32:51.08
IV.SGRT.HHE. ML:2.7 0.0005385788499999999 1.5904 AML other m 2021-03-28T16:32:52.11
IV.APRC.HHN. ML:2.3 0.0001594276 0.7424 AML other m 2021-03-28T16:32:52.47
IV.APRC.HNE. ML:2.9 0.0007447938 0.2944 AML other m 2021-03-28T16:32:54.32
IV.APRC.HHE. ML:2.5 0.0002650864 0.384 AML other m 2021-03-28T16:32:52.56
OT.OT05.EHN. ML:2.8 0.0005150745999999999 0.4096 AML other m 2021-03-28T16:32:54.86
OT.OT05.EHE. ML:2.7 0.00041268729999999995 0.2944 AML other m 2021-03-28T16:32:55.50
OT.OT12.EHE. ML:2.4 0.00020057700000000001 0.256 AML other m 2021-03-28T16:32:55.80
OT.OT12.EHN. ML:2.4 0.00022726944999999999 0.384 AML other m 2021-03-28T16:32:56.35
IV.BSSO.HHN. ML:2.1 0.00004568546499999999 0.6016 AML other m 2021-03-28T16:33:14.57
IV.SERS.HNE. ML:3.0 0.000047806675 1.0112 AML other m 2021-03-28T16:33:16.72
IV.CAFE.HHN. ML:2.0 0.000035387614999999994 1.424 AML other m 2021-03-28T16:33:18.28
IV.CAFE.HNE. ML:2.7 0.00016629218 1.1424 AML other m 2021-03-28T16:33:21.27
IV.CAFE.HHE. ML:2.2 0.000057252555 1.4752 AML other m 2021-03-28T16:33:21.96
IV.BSSO.HNE. ML:2.4 0.000090497095 1.3056 AML other m 2021-03-28T16:33:24.86
IV.BSSO.HNN. ML:2.5 0.00012937895 1.2192 AML other m 2021-03-28T16:33:24.83
IV.BSSO.HHE. ML:2.1 0.000052277155000000005 0.6784 AML other m 2021-03-28T16:33:24.61
IV.SERS.HHN. ML:2.2 0.000009663972999999999 1.3952 AML other m 2021-03-28T16:33:27.70
IV.SERS.HHE. ML:2.4 0.000013727768500000001 0.2976 AML other m 2021-03-28T16:33:27.17
IV.SERS.HNN. ML:2.8 0.0000335411315 0.8704 AML other m 2021-03-28T16:33:27.39
IV.CAFE.HNN. ML:2.8 0.0002043023 0.784 AML other m 2021-03-28T16:33:29.56
IV.MSAG.HHN. ML:2.3 0.00017638660000000002 0.5376 AML other m 2021-03-28T16:32:52.07
IV.MSAG.HHE. ML:1.8 0.000053554394999999996 0.4608 AML other m 2021-03-28T16:32:51.39
IV.MSAG.HNN. ML:2.7 0.00042795954999999997 0.5376 AML other m 2021-03-28T16:32:52.07
IV.MSAG.HNE. ML:2.2 0.00013879705 1.0624 AML other m 2021-03-28T16:32:51.92
IV.APRC.HNN. ML:2.8 0.00049068305 2.3936 AML other m 2021-03-28T16:32:51.79
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