Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.7 on date 23-01-2020 and time 06:33:58 (Italy) in region Mar Ionio Meridionale (MARE)

A magnitude ML 2.7 earthquake occured in region: Mar Ionio Meridionale (MARE), on

  • 23-01-2020 05:33:58 (UTC)
  • 23-01-2020 06:33:58 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 35.89, 15.3 at 20 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 2.7 2020-01-23
05:33:58		 35.89 15.3 20 2020-07-18
21:08:24		 Bollettino Sismico Italiano INGV 77071741
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-23 05:33:58 ± 0.18
Latitude 35.89 ± 0.01
Longitude 15.30 ± 0.02
Depth (km) 20 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 77071741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1420
Semi-minor axis of confidence ellipse (meter) 737
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 257
Circular confidence region, given by single value of horizontal uncertainty (meter) 1420
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 270
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.63492
Epicentral distance of station farthest from the epicenter (degree) 1.66285
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:2.7

Field Value
Value 2.7
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 77071741
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-03-10 11:11:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.HAGA.HHZ. 2020-01-23T05:34:42.02 0.3 undecidable manual S 355 1.3984 54 -0.35 73
IV.HVZN.HNZ. 2020-01-23T05:34:41.94 0.3 undecidable manual S 340 1.3706 54 0.23 74
IV.ACATE.EHZ. 2020-01-23T05:34:40.43 0.6 undecidable manual S 331 1.304 94 0.38 49
IV.MEU.EHZ. 2020-01-23T05:34:38.90 0.3 undecidable manual S 343 1.2779 94 -0.38 75
IV.CROCE.HHZ. 2020-01-23T05:34:35.07 0.3 undecidable manual S 327 1.1269 95 0.25 79
IV.CLTA.HHN. 2020-01-23T05:34:27.20 1.0 undecidable manual P 320 1.6628 54 -0.45 20
IV.HPAC.HHZ. 2020-01-23T05:34:26.64 0.3 undecidable manual S 345 0.8445 96 0.13 86
IV.RAFF.HHZ. 2020-01-23T05:34:25.89 0.6 undecidable manual P 331 1.5306 54 0.07 47
IV.HAGA.HHZ. 2020-01-23T05:34:24.18 0.3 undecidable manual P 355 1.3984 54 0.19 74
IV.HVZN.HNZ. 2020-01-23T05:34:23.52 0.3 undecidable manual P 340 1.3706 54 -0.09 77
IV.ACATE.EHZ. 2020-01-23T05:34:22.93 1.0 undecidable manual P 331 1.304 94 0.28 25
IV.MEU.EHZ. 2020-01-23T05:34:21.84 0.1 undecidable manual P 343 1.2779 94 -0.36 100
MN.WDD.HHE. 2020-01-23T05:34:20.20 0.3 undecidable manual S 265 0.6349 99 -0.13 89
IV.CROCE.HHZ. 2020-01-23T05:34:19.53 0.3 undecidable manual P 327 1.1269 95 -0.1 82
IV.HPAC.HHZ. 2020-01-23T05:34:15.00 0.3 undecidable manual P 345 0.8445 96 0.17 86
MN.WDD.HHE. 2020-01-23T05:34:11.46 0.3 undecidable manual P 265 0.6349 99 0.2 91
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.WDD.HHN. ML:2.4 0.0004085 1.08 AML other m 2020-01-23T05:34:23.66
MN.WDD.HHE. ML:2.5 0.000539 0.38 AML other m 2020-01-23T05:34:23.66
IV.HPAC.HHE. ML:2.8 0.0006095 0.96 AML other m 2020-01-23T05:34:31.96
IV.HPAC.HHN. ML:2.8 0.0006335 1.56 AML other m 2020-01-23T05:34:32.01
IV.CROCE.HHN. ML:2.4 0.000154 0.7 AML other m 2020-01-23T05:34:39.56
IV.CROCE.HHE. ML:2.5 0.0002185 0.3 AML other m 2020-01-23T05:34:39.57
IV.MEU.EHN. ML:3 0.0005815 0.28 AML other m 2020-01-23T05:34:40.61
IV.MEU.EHE. ML:3 0.000503 1.56 AML other m 2020-01-23T05:34:41.91
IV.RAFF.HHE. ML:2.9 0.0003535 1 AML other m 2020-01-23T05:34:56.61
IV.RAFF.HHN. ML:2.8 0.000233 1.22 AML other m 2020-01-23T05:34:59.80
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download