Earthquake with magnitude of Md 2.3 on date 07-04-1989 and time 21:59:29 (UTC) in region Tirreno Meridionale (MARE)

A magnitude Md 2.3 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 07-04-1989 21:59:29 (UTC)
  • 07-04-1989 23:59:29 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.2910, 15.5880 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.

Municipalities within 20 km from the epicenter

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
58 Km W of Cosenza (67546 inhabitants)
72 Km NW of Lamezia Terme (70714 inhabitants)
97 Km W of Catanzaro (90612 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
Md 2.3
ML-VAX 1.9
1989-04-07
21:59:29
39.291 15.588 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 89489
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-04-07 21:59:29 ± 0.284
Latitude 39.2910 ± 0.0124
Longitude 15.5880 ± 0.0222
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 89489

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 2357.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 250
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00380
Epicentral distance of station farthest from the epicenter (degree) 0.01149
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 89489
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:23:57

ML:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 89489
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.SGO.Z. 1989-04-07T22:00:11.40 10.0 undecidable manual SN 350 1.2765 0.32 0.4
--.MGR.Z. 1989-04-07T21:59:58.68 10.0 undecidable manual SG 358 0.8436 -0.06 0.8
--.SGO.Z. 1989-04-07T21:59:53.81 10.0 undecidable manual PN 350 1.2765 0.44 0.6
--.MMN.Z. 1989-04-07T21:59:53.50 10.0 undecidable manual SG 27 0.666 0.28 0.6
--.MMN.Z. 1989-04-07T21:59:47.50 10.0 undecidable manual PG! 27 0.666 4.23 0
--.MGR.Z. 1989-04-07T21:59:46.14 10.0 negative manual PG 358 0.8436 -0.32 2.5
--.CZI.Z. 1989-04-07T21:59:38.68 10.0 undecidable manual PG 99 0.4218 -0.04 2.1
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