Earthquake with magnitude of ML 1.9 on date 27-03-2021 and time 15:49:42 (UTC) in region Adriatico Centrale (MARE)

A magnitude ML 1.9 earthquake occured in region: Adriatico Centrale (MARE), on

  • 27-03-2021 15:49:42 (UTC)
  • 27-03-2021 16:49:42 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.5920, 16.1140 at 12 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

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 1.9 2021-03-27
15:49:42
42.5922 16.1142 12 2021-07-12
16:55:06
Bollettino Sismico Italiano INGV 89246251
Reviewed
Rev100
ML 2.1 2021-03-27
15:49:41
42.63 16.0528 10 2021-03-27
16:16:39
Sala Sismica INGV-Roma 88525701
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-27 15:49:42 ± 0.14
Latitude 42.5922 ± 0.0090
Longitude 16.1142 ± 0.0159
Depth (km) 12 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 89246251

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1370
Semi-minor axis of confidence ellipse (meter) 820
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 296
Circular confidence region, given by single value of horizontal uncertainty (meter) 1370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 312
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.64751
Epicentral distance of station farthest from the epicenter (degree) 1.29682
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 88525701
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-27 16:16:39

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 89246251
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-07-07 13:19:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CIGN.HHZ. 2021-03-27T15:50:24.11 0.6 undecidable manual S 224 143.9448 90 0.3 57
OT.OT07.EHZ. 2021-03-27T15:50:15.05 0.6 undecidable manual S 197 112.4985 90 -0.36 61
OT.OT05.EHZ. 2021-03-27T15:50:14.70 0.3 undecidable manual S 202 111.6993 90 -0.51 89
OT.OT06.EHZ. 2021-03-27T15:50:14.19 0.6 undecidable manual S 203 109.3128 90 -0.36 61
IV.APRC.HHZ. 2021-03-27T15:50:13.60 0.3 undecidable manual S 207 103.8183 90 0.5 89
OT.OT04.EHZ. 2021-03-27T15:50:13.45 0.3 undecidable manual S 205 106.2159 90 -0.3 94
OT.OT03.EHZ. 2021-03-27T15:50:13.63 0.6 undecidable manual S 202 104.8173 90 0.27 62
OT.OT12.EHZ. 2021-03-27T15:50:13.90 0.6 undecidable manual S 189 107.9142 90 -0.28 62
IV.SGRT.HHZ. 2021-03-27T15:50:11.00 0.3 undecidable manual S 198 97.7244 90 -0.48 92
IV.MSAG.HHZ. 2021-03-27T15:50:11.78 0.6 undecidable manual S 190 99.0231 90 -0.05 67
IV.CIGN.HHZ. 2021-03-27T15:50:07.14 1.0 undecidable manual P 224 143.9448 90 0.61 26
OT.OT13.EHZ. 2021-03-27T15:50:07.11 0.6 undecidable manual S 176 79.0653 91 0.61 60
OT.OT14.EHZ. 2021-03-27T15:50:06.68 0.3 undecidable manual S 193 78.9654 91 0.21 100
IV.TREM.HHZ. 2021-03-27T15:50:05.08 0.6 undecidable manual S 224 71.8725 91 0.52 62
OT.OT07.EHZ. 2021-03-27T15:50:01.34 0.6 undecidable manual P 197 112.4985 90 -0.34 61
OT.OT04.EHZ. 2021-03-27T15:50:01.06 0.6 undecidable manual P 205 106.2159 90 0.33 62
OT.OT06.EHZ. 2021-03-27T15:50:00.96 0.3 undecidable manual P 203 109.3128 90 -0.23 94
IV.APRC.HHZ. 2021-03-27T15:50:00.82 0.6 undecidable manual P 207 103.8183 90 0.47 60
OT.OT12.EHZ. 2021-03-27T15:50:00.87 0.6 undecidable manual P 189 107.9142 90 -0.1 65
OT.OT03.EHZ. 2021-03-27T15:50:00.24 0.3 undecidable manual P 202 104.8173 90 -0.26 94
OT.OT05.EHZ. 2021-03-27T15:50:00.65 0.6 undecidable manual P 202 111.6993 90 -0.92 50
IV.SGRT.HHZ. 2021-03-27T15:49:59.18 0.3 undecidable manual P 198 97.7244 90 -0.24 96
IV.MSAG.HHZ. 2021-03-27T15:49:59.69 0.3 undecidable manual P 190 99.0231 90 0.08 99
OT.OT14.EHZ. 2021-03-27T15:49:56.88 0.6 undecidable manual P 193 78.9654 91 0.36 65
OT.OT13.EHZ. 2021-03-27T15:49:56.90 0.3 undecidable manual P 176 79.0653 91 0.36 97
IV.TREM.HHZ. 2021-03-27T15:49:55.44 0.6 undecidable manual P 224 71.8725 91 0.02 70
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TREM.HHN. ML:2.2 0.0002348484 0.9728 AML other m 2021-03-27T15:50:04.42
IV.TREM.HHE. ML:1.9 0.00013912645000000001 0.9344 AML other m 2021-03-27T15:50:05.22
IV.SGRT.HHN. ML:1.8 0.00005957386500000001 1.4464 AML other m 2021-03-27T15:50:11.58
IV.MSAG.HHE. ML:1.3 0.000019790479999999998 0.4736 AML other m 2021-03-27T15:50:11.17
IV.SGRT.HHE. ML:1.8 0.00006427682500000002 0.2432 AML other m 2021-03-27T15:50:11.84
IV.MSAG.HHN. ML:1.9 0.000075142765 0.5504 AML other m 2021-03-27T15:50:12.52
OT.OT05.EHE. ML:1.9 0.000069738355 0.3584 AML other m 2021-03-27T15:50:15.08
OT.OT05.EHN. ML:1.9 0.00006519717 0.32 AML other m 2021-03-27T15:50:15.17
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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