Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.5 on date 29-09-1990 and time 05:04:04 (Italy) in region 4 km S Sant'Alessio in Aspromonte (RC)

A magnitude Md 2.5 earthquake occured in region: 4 km S Sant'Alessio in Aspromonte (RC), on

  • 29-09-1990 03:04:04 (UTC)
  • 29-09-1990 05:04:04 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.1330, 15.7610 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.

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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
Sant'Alessio in Aspromonte RC 5 343 343
Santo Stefano in Aspromonte RC 5 1263 1606
Laganadi RC 5 413 2019
Cardeto RC 5 1641 3660
Calanna RC 7 934 4594
San Roberto RC 9 1750 6344
Reggio di Calabria RC 11 183035 189379
Fiumara RC 11 1018 190397
Campo Calabro RC 13 4536 194933
Bagaladi RC 13 1039 195972
Scilla RC 14 4964 200936
Villa San Giovanni RC 15 13784 214720
San Lorenzo RC 15 2640 217360
Roccaforte del Greco RC 16 476 217836
Motta San Giovanni RC 16 6208 224044
Condofuri RC 17 5113 229157
Sant'Eufemia d'Aspromonte RC 17 4120 233277
Montebello Ionico RC 17 6214 239491
Bagnara Calabra RC 17 10255 249746
Sinopoli RC 18 2089 251835
Delianuova RC 18 3352 255187
Messina ME 19 238439 493626
Scido RC 20 931 494557

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km E of Reggio di Calabria (183035 inhabitants)
19 Km E of Messina (238439 inhabitants)
78 Km NE of Acireale (52622 inhabitants)
92 Km NE of Catania (314555 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 1.9 		1990-09-29
03:04:04		 38.133 15.761 5 2013-07-15
08:40:51		 Bollettino Sismico Italiano INGV 127919
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-09-29 03:04:04 ± 0.116
Latitude 38.1330 ± 0.0072
Longitude 15.7610 ± 0.0068
Depth (km) 5 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 127919

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) 996.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 97
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
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) 0.00057
Epicentral distance of station farthest from the epicenter (degree) 0.00769
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 127919
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:58:58

ML:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 127919
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
--.GRI.Z. 1990-09-29T03:04:35.48 10.0 undecidable manual SG 36 0.8547 0.23 0.5
--.MNO.Z. 1990-09-29T03:04:35.90 10.0 undecidable manual SG 256 0.8547 -0.23 0.5
--.LPI.Z. 1990-09-29T03:04:31.57 10.0 undecidable manual SG 299 0.7326 0.18 0.6
--.GRI.Z. 1990-09-29T03:04:22.54 10.0 undecidable manual PG 36 0.8547 0.19 1.3
--.MNO.Z. 1990-09-29T03:04:22.95 10.0 undecidable manual PG 256 0.8547 0.56 0.8
--.LPI.Z. 1990-09-29T03:04:19.43 10.0 undecidable manual PG 299 0.7326 -0.69 0.5
--.SOI.Z. 1990-09-29T03:04:13.75 10.0 undecidable manual SG 104 0.2331 -0.32 0.7
--.ATN.Z. 1990-09-29T03:04:13.97 10.0 undecidable manual SG 276 0.2331 0.02 0.9
--.MSI.Z. 1990-09-29T03:04:11.25 10.0 undecidable manual SG 293 0.1665 -0.44 0.5
--.MO9.Z. 1990-09-29T03:04:10.90 10.0 undecidable manual SG 201 0.1332 0.49 0.7
--.ATN.Z. 1990-09-29T03:04:09.91 10.0 undecidable manual PG 276 0.2331 -0.14 2.2
--.MSI.Z. 1990-09-29T03:04:09.76 10.0 undecidable manual PG 293 0.1665 1.01 0.3
--.SC9.Z. 1990-09-29T03:04:09.16 10.0 undecidable manual SG 344 0.1221 -0.79 0.2
--.SOI.Z. 1990-09-29T03:04:09.73 10.0 undecidable manual PG 104 0.2331 -0.39 1.6
--.GMB.Z. 1990-09-29T03:04:08.00 10.0 undecidable manual SG 56 0.0666 0.3 0.8
--.SC9.Z. 1990-09-29T03:04:07.62 10.0 undecidable manual PG 344 0.1221 -0.12 2.3
--.MO9.Z. 1990-09-29T03:04:07.76 10.0 undecidable manual PG 201 0.1332 -0.25 1.9
--.GMB.Z. 1990-09-29T03:04:06.80 10.0 undecidable manual PG 56 0.0666 0.36 1.8
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