Earthquake with magnitude of Md 1.7 on date 15-10-1990 and time 09:55:25 (Italy) in region 1 km E Acri (CS)

A magnitude Md 1.7 earthquake occured in region: 1 km E Acri (CS), on

  • 15-10-1990 08:55:25 (UTC)
  • 15-10-1990 09:55:25 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 39.4930, 16.3990 at 5 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 2 20858 20858
Santa Sofia d'Epiro CS 9 2628 23486
San Demetrio Corone CS 9 3559 27045
Bisignano CS 10 10203 37248
San Cosmo Albanese CS 10 591 37839
Luzzi CS 11 9396 47235
San Giorgio Albanese CS 11 1432 48667
Vaccarizzo Albanese CS 11 1125 49792
Rose CS 13 4373 54165
Corigliano Calabro CS 16 40427 94592
Tarsia CS 18 2054 96646
San Pietro in Guarano CS 18 3663 100309
Castiglione Cosentino CS 18 2896 103205
Longobucco CS 19 3183 106388
Terranova da Sibari CS 19 5100 111488

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km NE of Cosenza (67546 inhabitants)
58 Km N of Lamezia Terme (70714 inhabitants)
67 Km N of Catanzaro (90612 inhabitants)
78 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 1.7 1990-10-15
08:55:25
39.493 16.399 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 128639
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-10-15 08:55:25 ± 0.157
Latitude 39.4930 ± 0.0084
Longitude 16.3990 ± 0.0105
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 128639

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) 1294.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 158
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00130
Epicentral distance of station farthest from the epicenter (degree) 0.00308
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 128639
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:59:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.CZI.Z. 1990-10-15T08:55:38.20 10.0 undecidable manual SG 216 0.3441 -0.51 0.1
--.CZI.Z. 1990-10-15T08:55:33.36 10.0 undecidable manual PG 216 0.3441 0.27 0.9
--.CSI.Z. 1990-10-15T08:55:32.45 10.0 undecidable manual PG 344 0.2997 0.24 1.1
--.TDS.Z. 1990-10-15T08:55:32.50 10.0 undecidable manual SG 344 0.1665 0.18 0.6
--.ROI.Z. 1990-10-15T08:55:31.20 10.0 undecidable manual SG 58 0.1443 -0.31 0.4
--.TDS.Z. 1990-10-15T08:55:29.00 10.0 undecidable manual PG 344 0.1665 -0.4 0.6
--.ROI.Z. 1990-10-15T08:55:29.00 10.0 positive manual PG 58 0.1443 0.07 3.4
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