Earthquake with magnitude of Md 2.5 on date 23-10-1998 and time 22:52:44 (UTC) in region 13 km SW Longobucco (CS)

A magnitude Md 2.5 earthquake occured in region: 13 km SW Longobucco (CS), on

  • 23-10-1998 22:52:44 (UTC)
  • 24-10-1998 00:52:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.3550, 16.5150 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
Longobucco CS 13 3183 3183
Celico CS 16 2802 5985
Spezzano Piccolo CS 16 2079 8064
Spezzano della Sila CS 16 4541 12605
Serra Pedace CS 17 986 13591
Rovito CS 17 3158 16749
San Pietro in Guarano CS 17 3663 20412
Pedace CS 17 1907 22319
Casole Bruzio CS 18 2578 24897
Lappano CS 18 941 25838
Pietrafitta CS 18 1310 27148
Trenta CS 18 2633 29781
Acri CS 19 20858 50639
Rose CS 19 4373 55012
San Giovanni in Fiore CS 19 17372 72384
Castiglione Cosentino CS 19 2896 75280
Aprigliano CS 20 2890 78170
Zumpano CS 20 2570 80740

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km E of Cosenza (67546 inhabitants)
45 Km NE of Lamezia Terme (70714 inhabitants)
50 Km N of Catanzaro (90612 inhabitants)
61 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 2.5
ML-VAX 1.6
1998-10-23
22:52:44
39.355 16.515 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 353799
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-10-23 22:52:44 ± 0.388
Latitude 39.3550 ± 0.0128
Longitude 16.5150 ± 0.0608
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 353799

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) 5414.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 192
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) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00300
Epicentral distance of station farthest from the epicenter (degree) 0.01360
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 5
Type of magnitude Md
Reference to an origin 353799
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:31:36

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 353799
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. 1998-10-23T22:53:21.63 10.0 undecidable manual SG 316 1.0656 -0.29 0.5
--.SGO.Z. 1998-10-23T22:53:13.39 10.0 undecidable manual PN 322 1.5096 1.18 0.6
--.ORI.Z. 1998-10-23T22:53:10.17 10.0 undecidable manual SG 355 0.6882 0.38 0.7
--.SOI.Z. 1998-10-23T22:53:10.32 10.0 undecidable manual PN 195 1.3209 0.69 1.3
--.SL9.Z. 1998-10-23T22:53:09.60 10.0 undecidable manual PN 326 1.2321 1.27 0.6
--.MGR.Z. 1998-10-23T22:53:05.98 10.0 undecidable manual PG 316 1.0656 -0.14 1.7
--.GRI.Z. 1998-10-23T22:53:04.42 10.0 undecidable manual SG 187 0.5328 -0.23 0.7
--.ORI.Z. 1998-10-23T22:52:57.99 10.0 undecidable manual PG 355 0.6882 -1.12 0.8
--.TDS.Z. 1998-10-23T22:52:57.15 10.0 undecidable manual SG 335 0.333 -0.38 0.6
--.GRI.Z. 1998-10-23T22:52:55.62 10.0 undecidable manual PG 187 0.5328 -0.53 1.5
--.TDS.Z. 1998-10-23T22:52:51.96 10.0 undecidable manual PG 335 0.333 -0.07 2.1
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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