Earthquake with magnitude of Md 2.3 on date 04-12-1990 and time 11:29:26 (Italy) in region 10 km E Acri (CS)

A magnitude Md 2.3 earthquake occured in region: 10 km E Acri (CS), on

  • 04-12-1990 10:29:26 (UTC)
  • 04-12-1990 11:29:26 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 39.4590, 16.4930 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Acri CS 10 20858 20858
Longobucco CS 10 3183 24041
San Giorgio Albanese CS 14 1432 25473
San Cosmo Albanese CS 15 591 26064
Vaccarizzo Albanese CS 15 1125 27189
Corigliano Calabro CS 15 40427 67616
San Demetrio Corone CS 17 3559 71175
Santa Sofia d'Epiro CS 17 2628 73803
Luzzi CS 18 9396 83199
Rossano CS 18 36842 120041
Paludi CS 18 1062 121103
Rose CS 18 4373 125476
Bisignano CS 19 10203 135679
San Pietro in Guarano CS 20 3663 139342

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km NE of Cosenza (67546 inhabitants)
56 Km N of Lamezia Terme (70714 inhabitants)
62 Km N of Catanzaro (90612 inhabitants)
69 Km NW of Crotone (62178 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 1990-12-04
10:29:26
39.459 16.493 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 131999
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-12-04 10:29:26 ± 0.463
Latitude 39.4590 ± 0.0270
Longitude 16.4930 ± 0.0400
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 131999

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) 4560.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 131
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00113
Epicentral distance of station farthest from the epicenter (degree) 0.00826
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 131999
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:02:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.MMN.Z. 1990-12-04T10:29:49.70 10.0 undecidable manual SG! 318 0.5772 2.64 0
--.DR2.Z. 1990-12-04T10:29:46.00 10.0 undecidable manual PG 208 0.9213 1.21 0.2
--.CSI.Z. 1990-12-04T10:29:40.30 10.0 undecidable manual SG 334 0.3552 0.27 0.5
--.MMN.Z. 1990-12-04T10:29:37.60 10.0 undecidable manual PG 318 0.5772 -0.8 0.6
--.TDS.Z. 1990-12-04T10:29:36.50 10.0 undecidable manual SG 329 0.222 0.5 0.4
--.SE2.Z. 1990-12-04T10:29:35.54 10.0 undecidable manual PG 158 0.4773 -1.13 0.4
--.CSI.Z. 1990-12-04T10:29:33.80 10.0 negative manual PG 334 0.3552 -0.55 2.1
--.TDS.Z. 1990-12-04T10:29:32.00 10.0 undecidable manual PG 329 0.222 -0.02 1.4
--.ROI.Z. 1990-12-04T10:29:30.52 10.0 positive manual PG 27 0.1221 0.49 2.2
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