Earthquake with magnitude of Md 2.3 on date 20-10-1988 and time 17:37:59 (Italy) in region 3 km NW Acri (CS)

A magnitude Md 2.3 earthquake occured in region: 3 km NW Acri (CS), on

  • 20-10-1988 16:37:59 (UTC)
  • 20-10-1988 17:37:59 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 39.5040, 16.3590 at 11 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 3 20858 20858
Santa Sofia d'Epiro CS 5 2628 23486
Bisignano CS 6 10203 33689
San Demetrio Corone CS 7 3559 37248
Luzzi CS 9 9396 46644
San Cosmo Albanese CS 10 591 47235
Vaccarizzo Albanese CS 11 1125 48360
San Giorgio Albanese CS 12 1432 49792
Rose CS 13 4373 54165
Tarsia CS 15 2054 56219
Terranova da Sibari CS 17 5100 61319
Corigliano Calabro CS 17 40427 101746
Castiglione Cosentino CS 18 2896 104642
San Pietro in Guarano CS 18 3663 108305
Spezzano Albanese CS 18 7028 115333
Torano Castello CS 18 4614 119947
San Lorenzo del Vallo CS 19 3394 123341
Lattarico CS 20 4013 127354

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km NE of Cosenza (67546 inhabitants)
59 Km N of Lamezia Terme (70714 inhabitants)
69 Km N of Catanzaro (90612 inhabitants)
81 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
ML-VAX 1.8
1988-10-20
16:37:59
39.504 16.359 11 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 79409
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-10-20 16:37:59 ± 0.091
Latitude 39.5040 ± 0.0055
Longitude 16.3590 ± 0.0112
Depth (km) 11 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 79409

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) 1137.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 104
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
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) 0.00138
Epicentral distance of station farthest from the epicenter (degree) 0.01190
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 79409
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:14:43

ML:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 79409
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
--.MGR.Z. 1988-10-20T16:38:30.50 10.0 undecidable manual SG 315 0.8769 0.41 0.1
--.SGO.Z. 1988-10-20T16:38:23.50 10.0 undecidable manual PN 323 1.3209 0 1
--.GRI.Z. 1988-10-20T16:38:23.00 10.0 undecidable manual SG 175 0.6771 -0.18 0.4
--.MGR.Z. 1988-10-20T16:38:16.49 10.0 undecidable manual PG 315 0.8769 -0.34 0.5
--.GRI.Z. 1988-10-20T16:38:13.66 10.0 undecidable manual PG 175 0.6771 0.57 0.2
--.SE2.Z. 1988-10-20T16:38:10.96 10.0 undecidable manual PG 150 0.5661 -0.04 1.6
--.CZI.Z. 1988-10-20T16:38:06.42 10.0 undecidable manual PG 211 0.333 -0.2 1
--.TDS.Z. 1988-10-20T16:38:06.00 10.0 undecidable manual SG 354 0.1554 -0.3 0.4
--.CSI.Z. 1988-10-20T16:38:05.74 10.0 undecidable manual PG 349 0.2775 0.02 1.6
--.TDS.Z. 1988-10-20T16:38:03.61 10.0 undecidable manual PG 354 0.1554 0.26 1
--.ROI.Z. 1988-10-20T16:38:03.62 10.0 undecidable manual PG 67 0.1665 -0.05 3.2
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