Earthquake with magnitude of Md 3.1 on date 18-09-1999 and time 13:59:57 (Italy) in region Costa Calabra sud occidentale (Catanzaro, Vibo Valentia, Reggio di Calabria)

A magnitude Md 3.1 earthquake occured in region: Costa Calabra sud occidentale (Catanzaro, Vibo Valentia, Reggio di Calabria), on

  • 18-09-1999 11:59:57 (UTC)
  • 18-09-1999 13:59:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.42, 15.81 at 27 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
Gioia Tauro RC 8 19864 19864
Palmi RC 8 18930 38794
Seminara RC 11 2811 41605
San Ferdinando RC 12 4490 46095
Rizziconi RC 13 7829 53924
MelicuccĂ  RC 15 930 54854
Bagnara Calabra RC 15 10255 65109
Rosarno RC 17 14841 79950
Nicotera VV 17 6290 86240
San Procopio RC 17 534 86774
Sant'Eufemia d'Aspromonte RC 18 4120 90894
Sinopoli RC 19 2089 92983
Varapodio RC 19 2160 95143
Taurianova RC 20 15636 110779
Joppolo VV 20 1926 112705
Cosoleto RC 20 859 113564

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km NE of Messina (238439 inhabitants)
38 Km NE of Reggio di Calabria (183035 inhabitants)
76 Km SW of Lamezia Terme (70714 inhabitants)
87 Km SW 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 3.1
ML-VAX 2.5
1999-09-18
11:59:57
38.42 15.81 27 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 373789
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1999-09-18 11:59:57 ± 0.219
Latitude 38.42 ± 0.02
Longitude 15.81 ± 0.02
Depth (km) 27 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 373789

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) 2881.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 101
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00259
Epicentral distance of station farthest from the epicenter (degree) 0.02388
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitudes information

Md:3.1

Field Value
Value 3.1
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 373789
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:50:53

ML:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 7
Type of magnitude ML
Reference to an origin 373789
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 Takeoff_angle Residual Weight
--.GIB.Z. 1999-09-18T12:00:38.72 10.0 undecidable manual SN 253 0.0131 -1 0.2
--.CI9.Z. 1999-09-18T12:00:37.23 10.0 undecidable manual PN 346 0.0226 0.95 0.5
--.BRT.Z. 1999-09-18T12:00:36.70 10.0 undecidable manual PN 22 0.0239 -1.6 0.1
--.SGO.Z. 1999-09-18T12:00:31.78 10.0 undecidable manual PN 349 0.0195 0.18 1.2
--.SL9.Z. 1999-09-18T12:00:29.79 10.0 undecidable manual PN 355 0.0177 0.92 0.6
--.MNO.Z. 1999-09-18T12:00:28.78 10.0 undecidable manual SN 240 0.009 0.05 0.7
--.ORI.Z. 1999-09-18T12:00:26.32 10.0 undecidable manual PN 16 0.0152 1.18 0.4
--.PZI.Z. 1999-09-18T12:00:23.39 10.0 undecidable manual PN 206 0.0137 0.59 1
--.MEU.Z. 1999-09-18T12:00:22.28 10.0 undecidable manual PN 210 0.0137 -0.45 1.2
--.CS9.Z. 1999-09-18T12:00:21.18 10.0 undecidable manual PN 250 0.013 -0.54 1.1
--.GIB.Z. 1999-09-18T12:00:21.46 10.0 undecidable manual PN 253 0.0131 -0.49 1.1
--.GRI.Z. 1999-09-18T12:00:20.20 10.0 undecidable manual SN 49 0.0056 0.56 0.4
--.AU9.Z. 1999-09-18T12:00:19.73 10.0 undecidable manual PN 201 0.0113 0.63 1.1
--.TDS.Z. 1999-09-18T12:00:19.20 10.0 undecidable manual PN 18 0.0117 -0.68 1
--.MNO.Z. 1999-09-18T12:00:16.52 10.0 undecidable manual PN 240 0.009 0.91 0.7
--.SOI.Z. 1999-09-18T12:00:14.30 10.0 undecidable manual SG 150 0.0036 0.39 0.5
--.SA1.Z. 1999-09-18T12:00:12.18 10.0 undecidable manual PN 280 0.007 -0.3 1.4
--.MSI.Z. 1999-09-18T12:00:10.45 10.0 undecidable manual SG 222 0.0026 -0.38 0.5
--.GRI.Z. 1999-09-18T12:00:09.52 10.0 undecidable manual PN 49 0.0056 -0.84 0.9
--.SOI.Z. 1999-09-18T12:00:06.69 10.0 negative manual PG 150 0.0036 -0.2 3.2
--.MSI.Z. 1999-09-18T12:00:05.47 10.0 negative manual PG 222 0.0026 0.2 3.2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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