Earthquake with magnitude of Md 2.3 on date 16-04-1990 and time 10:48:35 (UTC) in region 5 km N Roccella Valdemone (ME)

A magnitude Md 2.3 earthquake occured in region: 5 km N Roccella Valdemone (ME), on

  • 16-04-1990 10:48:35 (UTC)
  • 16-04-1990 12:48:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.9790, 15.0120 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Roccella Valdemone ME 5 666 666
Montalbano Elicona ME 5 2287 2953
Malvagna ME 8 733 3686
Santa Domenica Vittoria ME 8 980 4666
Floresta ME 9 485 5151
San Piero Patti ME 9 2915 8066
Moio Alcantara ME 9 717 8783
Basicò ME 10 612 9395
Tripi ME 11 873 10268
Novara di Sicilia ME 11 1337 11605
Raccuja ME 12 1041 12646
Randazzo CT 13 10900 23546
Ucria ME 14 1058 24604
Francavilla di Sicilia ME 14 3945 28549
Librizzi ME 14 1660 30209
Fondachelli-Fantina ME 14 1019 31228
Castiglione di Sicilia CT 14 3215 34443
MazzarrĂ  Sant'Andrea ME 17 1531 35974
Falcone ME 17 2808 38782
Motta Camastra ME 17 845 39627
Oliveri ME 17 2181 41808
Furnari ME 17 3784 45592
Tortorici ME 17 6435 52027
Montagnareale ME 18 1615 53642
Sinagra ME 18 2705 56347
Patti ME 19 13431 69778
Sant'Angelo di Brolo ME 19 3090 72868
Linguaglossa CT 19 5403 78271

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km NW of Acireale (52622 inhabitants)
53 Km N of Catania (314555 inhabitants)
53 Km W of Messina (238439 inhabitants)
57 Km W of Reggio di Calabria (183035 inhabitants)
99 Km NE of Caltanissetta (63360 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 2.3
ML-VAX 2.1
1990-04-16
10:48:35
37.979 15.012 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 114379
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-04-16 10:48:35 ± 0.252
Latitude 37.9790 ± 0.0202
Longitude 15.0120 ± 0.0195
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 114379

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) 2819.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 95
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
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) 0.00227
Epicentral distance of station farthest from the epicenter (degree) 0.01247
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 6
Type of magnitude Md
Reference to an origin 114379
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:46:21

ML:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 6
Type of magnitude ML
Reference to an origin 114379
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
--.PZI.Z. 1990-04-16T10:49:07.11 10.0 undecidable manual SG 183 0.9213 0.21 0.4
--.GRI.Z. 1990-04-16T10:49:00.70 10.0 undecidable manual PN 51 1.3875 -0.33 0.6
--.MSI.Z. 1990-04-16T10:48:54.40 10.0 undecidable manual SG 61 0.4773 1.33 0
--.DR2.Z. 1990-04-16T10:48:54.50 10.0 negative manual PG 46 0.9768 -0.08 2
--.MO9.Z. 1990-04-16T10:48:54.56 10.0 undecidable manual SG 87 0.5328 0.09 0.5
--.PZI.Z. 1990-04-16T10:48:52.51 10.0 undecidable manual PG 183 0.9213 -1.03 0.1
--.FE2.Z. 1990-04-16T10:48:51.93 10.0 positive manual PG 85 0.8436 -0.2 2
--.ATN.Z. 1990-04-16T10:48:49.82 10.0 undecidable manual SG 62 0.3996 -0.14 0.5
--.GA2.Z. 1990-04-16T10:48:48.80 10.0 positive manual PG 73 0.666 -0.02 2.5
--.MO9.Z. 1990-04-16T10:48:46.68 10.0 positive manual PG 87 0.5328 0.31 2
--.SA1.Z. 1990-04-16T10:48:46.55 10.0 undecidable manual PG 346 0.5883 -0.96 0.2
--.MSI.Z. 1990-04-16T10:48:45.48 10.0 undecidable manual PG 61 0.4773 0.13 1.2
--.ATN.Z. 1990-04-16T10:48:44.20 10.0 undecidable manual PG 62 0.3996 0.26 1.1
--.MNO.Z. 1990-04-16T10:48:41.77 10.0 negative manual PG 259 0.2553 0.66 1
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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