Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.5 on date 27-12-1990 and time 17:42:32 (UTC) in region Costa Calabra sud occidentale (Catanzaro, Vibo Valentia, Reggio di Calabria)

A magnitude Md 2.5 earthquake occured in region: Costa Calabra sud occidentale (Catanzaro, Vibo Valentia, Reggio di Calabria), on

  • 27-12-1990 17:42:32 (UTC)
  • 27-12-1990 18:42:32 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.6730, 15.8490 at 54 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Tropea VV 4 6441 6441
Ricadi VV 6 4900 11341
Drapia VV 6 2085 13426
Parghelia VV 7 1300 14726
Spilinga VV 7 1464 16190
Zaccanopoli VV 7 752 16942
Joppolo VV 11 1926 18868
Zungri VV 12 1976 20844
Zambrone VV 13 1775 22619
Rombiolo VV 16 4569 27188
Cessaniti VV 16 3290 30478
Nicotera VV 16 6290 36768
Limbadi VV 16 3695 40463
Filandari VV 17 1853 42316
Briatico VV 17 4053 46369
San Calogero VV 18 4315 50684
Ionadi VV 19 4238 54922
San Costantino Calabro VV 20 2239 57161
Mileto VV 20 6763 63924

Municipalities with at least 50000 inhabitants

An earthquake occurred to
53 Km SW of Lamezia Terme (70714 inhabitants)
59 Km NE of Messina (238439 inhabitants)
65 Km N of Reggio di Calabria (183035 inhabitants)
70 Km W of Catanzaro (90612 inhabitants)
78 Km SW of Cosenza (67546 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 2.1 		1990-12-27
17:42:32		 38.673 15.849 54 2013-07-15
08:40:51		 Bollettino Sismico Italiano INGV 133099
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-12-27 17:42:32 ± 0.376
Latitude 38.6730 ± 0.0214
Longitude 15.8490 ± 0.0620
Depth (km) 54 ± 5 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 133099

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) 5884.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 116
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00057
Epicentral distance of station farthest from the epicenter (degree) 0.01732
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 133099
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:04:01

ML:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 133099
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
--.TDS.Z. 1990-12-27T17:43:05.36 10.0 undecidable manual S 20 1.0545 -0.02 0.5
--.SGO.Z. 1990-12-27T17:43:03.72 10.0 undecidable manual P 347 1.9203 0.23 0.9
--.SOI.Z. 1990-12-27T17:42:54.76 10.0 undecidable manual S 164 0.6105 -0.92 0.2
--.ATN.Z. 1990-12-27T17:42:54.00 10.0 undecidable manual S 210 0.5883 -1.18 0.1
--.MNO.Z. 1990-12-27T17:42:54.10 10.0 undecidable manual P 231 1.1544 0.82 0.6
--.MMN.Z. 1990-12-27T17:42:53.50 10.0 undecidable manual P 5 1.2099 -0.38 1
--.MSI.Z. 1990-12-27T17:42:53.61 10.0 undecidable manual S 206 0.5217 -0.07 0.7
--.CSI.Z. 1990-12-27T17:42:53.50 10.0 undecidable manual P 17 1.1544 -0.04 1.3
--.GMB.Z. 1990-12-27T17:42:52.10 10.0 undecidable manual S 181 0.4995 -1.31 0.1
--.ROI.Z. 1990-12-27T17:42:52.60 10.0 undecidable manual P 31 1.0545 0.91 0.5
--.SC9.Z. 1990-12-27T17:42:51.80 10.0 undecidable manual S 194 0.4218 -0.08 0.7
--.TDS.Z. 1990-12-27T17:42:50.15 10.0 undecidable manual P 20 1.0545 -1.54 0.1
--.DR2.Z. 1990-12-27T17:42:48.35 10.0 undecidable manual S 113 0.0666 0.88 0.3
--.SOI.Z. 1990-12-27T17:42:46.90 10.0 undecidable manual P 164 0.6105 0.81 0.7
--.ATN.Z. 1990-12-27T17:42:45.66 10.0 undecidable manual P 210 0.5883 -0.14 1.6
--.GMB.Z. 1990-12-27T17:42:44.79 10.0 undecidable manual P 181 0.4995 0.06 1.7
--.GA2.Z. 1990-12-27T17:42:44.92 10.0 negative manual P 181 0.4995 0.2 3.2
--.MSI.Z. 1990-12-27T17:42:44.91 10.0 undecidable manual P 206 0.5217 -0.02 1.7
--.SC9.Z. 1990-12-27T17:42:43.37 10.0 undecidable manual P 194 0.4218 -0.52 1.2
--.DR2.Z. 1990-12-27T17:42:41.60 10.0 negative manual P 113 0.0666 0.25 3.1
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