Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.5 on date 28-02-1990 and time 23:09:46 (Italy) in region 1 km SE Melicucco (RC)

A magnitude Md 2.5 earthquake occured in region: 1 km SE Melicucco (RC), on

  • 28-02-1990 22:09:46 (UTC)
  • 28-02-1990 23:09:46 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.4270, 16.0710 at 10 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Melicucco RC 1 5101 5101
Anoia RC 2 2212 7313
Polistena RC 2 10496 17809
Cinquefrondi RC 3 6539 24348
Maropati RC 3 1524 25872
Feroleto della Chiesa RC 5 1695 27567
Galatro RC 5 1709 29276
San Giorgio Morgeto RC 5 3058 32334
Giffone RC 7 1907 34241
Laureana di Borrello RC 7 5174 39415
Cittanova RC 8 10410 49825
Candidoni RC 9 416 50241
Taurianova RC 10 15636 65877
Rizziconi RC 10 7829 73706
Serrata RC 10 845 74551
Rosarno RC 10 14841 89392
San Pietro di Caridà RC 12 1195 90587
Terranova Sappo Minulio RC 13 523 91110
Dinami VV 13 2168 93278
Molochio RC 14 2564 95842
Varapodio RC 15 2160 98002
San Ferdinando RC 15 4490 102492
Gioia Tauro RC 15 19864 122356
Mammola RC 17 2847 125203
Oppido Mamertina RC 17 5332 130535
Canolo RC 17 746 131281
San Calogero VV 17 4315 135596
Limbadi VV 18 3695 139291
Acquaro VV 18 2484 141775
Nicotera VV 18 6290 148065
Grotteria RC 18 3154 151219
Antonimina RC 18 1317 152536
Dasà VV 19 1208 153744
Agnana Calabra RC 19 562 154306
San Giovanni di Gerace RC 19 481 154787
Arena VV 20 1456 156243
Mileto VV 20 6763 163006
Rombiolo VV 20 4569 167575

Municipalities with at least 50000 inhabitants

An earthquake occurred to
51 Km NE of Reggio di Calabria (183035 inhabitants)
52 Km NE of Messina (238439 inhabitants)
65 Km SW of Lamezia Terme (70714 inhabitants)
70 Km SW of Catanzaro (90612 inhabitants)
98 Km S 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 		1990-02-28
22:09:46		 38.427 16.071 10 2013-07-15
08:41:04		 Bollettino Sismico Italiano INGV 110909
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-02-28 22:09:46 ± 0.269
Latitude 38.4270 ± 0.0173
Longitude 16.0710 ± 0.0266
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 110909

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) 3008.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 147
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00283
Epicentral distance of station farthest from the epicenter (degree) 0.01578
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:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 110909
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:43:08

ML:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 5
Type of magnitude ML
Reference to an origin 110909
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. 1990-02-28T22:10:17.84 10.0 undecidable manual PN 346 1.7538 1.13 0
--.MO9.Z. 1990-02-28T22:10:05.00 10.0 undecidable manual SG 214 0.5106 -0.09 0.5
--.ATN.Z. 1990-02-28T22:10:05.44 10.0 undecidable manual SG 240 0.5439 -0.6 0.2
--.GRI.Z. 1990-02-28T22:10:02.48 10.0 undecidable manual SG 34 0.4773 -1.4 0
--.SOI.Z. 1990-02-28T22:09:59.56 10.0 undecidable manual SG 181 0.3552 -0.26 0.4
--.GMB.Z. 1990-02-28T22:09:58.90 10.0 undecidable manual SG 216 0.3108 0.13 0.5
--.ATN.Z. 1990-02-28T22:09:57.44 10.0 undecidable manual PG 240 0.5439 -0.37 0.9
--.MSI.Z. 1990-02-28T22:09:56.50 10.0 undecidable manual PG 241 0.4551 0.28 1.1
--.MO9.Z. 1990-02-28T22:09:56.81 10.0 positive manual PG 214 0.5106 -0.44 1.6
--.GRI.Z. 1990-02-28T22:09:56.37 10.0 undecidable manual PG 34 0.4773 -0.19 1.1
--.SOI.Z. 1990-02-28T22:09:54.60 10.0 positive manual PG 181 0.3552 0.39 1.7
--.GMB.Z. 1990-02-28T22:09:53.70 10.0 positive manual PG 216 0.3108 0.1 2.4
--.SC9.Z. 1990-02-28T22:09:53.74 10.0 positive manual PG 238 0.3219 0.04 2.5
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