Earthquake with magnitude of Md 3.4 on date 21-05-1985 and time 19:43:32 (Italy) in region 9 km W Martello (BZ)

A magnitude Md 3.4 earthquake occured in region: 9 km W Martello (BZ), on

  • 21-05-1985 17:43:32 (UTC)
  • 21-05-1985 19:43:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.53, 10.68 at 6 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
Martello BZ 9 869 869
Lasa BZ 10 3993 4862
Prato allo Stelvio BZ 12 3474 8336
Stelvio BZ 13 1161 9497
Silandro BZ 13 6016 15513
Sluderno BZ 17 1804 17317
Laces BZ 17 5188 22505
Glorenza BZ 19 896 23401
Peio TN 19 1860 25261
Rabbi TN 20 1372 26633

Municipalities with at least 50000 inhabitants

An earthquake occurred to
52 Km W of Bolzano (106441 inhabitants)
61 Km NW of Trento (117317 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
Rev 1000 Md 3.4
ML-VAX 3.1
1985-05-21
17:43:32
46.53 10.68 6 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 7009
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-05-21 17:43:32 ± 1.133
Latitude 46.53 ± 0.03
Longitude 10.68 ± 0.03
Depth (km) 6 ± 6 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 7009

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) 4423.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 201
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.9
Epicentral distance of station closest to the epicenter (degree) 0.00737
Epicentral distance of station farthest from the epicenter (degree) 0.03837
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

Md:3.4

Field Value
Value 3.4
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 7009
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:11:16

ML:3.1

Field Value
Value 3.1
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 7009
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
--.PO9.Z. 1985-05-21T17:44:39.40 10.0 undecidable manual PN 157 0.0384 1.45 0.5
--.VOY.Z. 1985-05-21T17:44:37.00 10.0 undecidable manual SN 102 0.0204 -1.37 0.3
--.ORO.Z. 1985-05-21T17:44:33.00 10.0 undecidable manual SN 245 0.0186 -0.6 0.6
--.STV.Z. 1985-05-21T17:44:24.50 10.0 undecidable manual PN 227 0.0294 0.22 1.4
--.BN9.Z. 1985-05-21T17:44:23.00 10.0 undecidable manual PN 244 0.0283 0.33 1.4
--.FO1.Z. 1985-05-21T17:44:18.00 10.0 undecidable manual SN 87 0.013 -0.66 0.6
--.BD1.Z. 1985-05-21T17:44:15.00 10.0 undecidable manual PN 182 0.0222 1.79 0.4
--.VOY.Z. 1985-05-21T17:44:11.20 10.0 undecidable manual PN 102 0.0204 0.59 1.5
--.RBL.Z. 1985-05-21T17:44:08.30 10.0 undecidable manual PN 92 0.0179 1.6 0.6
--.BVT.Z. 1985-05-21T17:44:08.00 10.0 undecidable manual PN 197 0.0192 -0.75 1.4
--.ORO.Z. 1985-05-21T17:44:06.80 10.0 undecidable manual PN 245 0.0186 -1.06 1.1
--.SAL.Z. 1985-05-21T17:44:05.00 10.0 undecidable manual SG 187 0.0083 -0.09 0.7
--.PCN.Z. 1985-05-21T17:44:03.00 10.0 undecidable manual PN 206 0.0147 1.16 1.1
--.CTI.Z. 1985-05-21T17:44:02.20 10.0 undecidable manual SG 125 0.0074 0.34 0.7
--.FO1.Z. 1985-05-21T17:43:57.90 10.0 undecidable manual PN 87 0.013 -1.34 0.8
--.SAL.Z. 1985-05-21T17:43:50.60 10.0 positive manual PG 187 0.0083 -0.8 2.7
--.CTI.Z. 1985-05-21T17:43:48.60 10.0 undecidable manual PG 125 0.0074 -0.93 1.2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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