Earthquake with magnitude of Md 3.3 on date 01-04-1985 and time 10:03:28 (Italy) in region Costa Abruzzese Chieti (Chieti)

A magnitude Md 3.3 earthquake occured in region: Costa Abruzzese Chieti (Chieti), on

  • 01-04-1985 08:03:28 (UTC)
  • 01-04-1985 10:03:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.27, 14.9 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
61 Km E of Pescara (121014 inhabitants)
61 Km E of Chieti (51815 inhabitants)
68 Km E of Montesilvano (53738 inhabitants)
76 Km NW of San Severo (53905 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 3.3
ML-VAX 3.1
1985-04-01
08:03:28
42.27 14.91 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 3859
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-04-01 08:03:28 ± 0.309
Latitude 42.27 ± 0.03
Longitude 14.91 ± 0.03
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 3859

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) 3841.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 156
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 35
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.8
Epicentral distance of station closest to the epicenter (degree) 0.00623
Epicentral distance of station farthest from the epicenter (degree) 0.03991
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 24
Magnitudes information

Md:3.3

Field Value
Value 3.3
Uncertainty
Num. used stations 10
Type of magnitude Md
Reference to an origin 3859
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:08:34

ML:3.1

Field Value
Value 3.1
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 3859
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
--.CH1.Z. 1985-04-01T08:04:42.00 10.0 undecidable manual SN 302 0.0229 2.13 0.1
--.CTI.Z. 1985-04-01T08:04:34.50 10.0 undecidable manual PN 329 0.0399 -1.15 0.6
--.BRT.Z. 1985-04-01T08:04:31.50 10.0 undecidable manual SN 128 0.0196 0.49 0.6
--.AS1.Z. 1985-04-01T08:04:25.00 10.0 undecidable manual SN 296 0.0165 2.21 0.1
--.SOR.Z. 1985-04-01T08:04:22.60 10.0 undecidable manual SN 194 0.0156 2.09 0.1
--.RMP.N. 1985-04-01T08:04:20.00 10.0 undecidable manual SN 254 0.0152 0.48 0.6
--.SGO.Z. 1985-04-01T08:04:20.00 10.0 undecidable manual SN 169 0.0155 -0.41 0.6
--.LCI.Z. 1985-04-01T08:04:19.00 10.0 undecidable manual PN 127 0.0278 1.88 0.3
--.PO9.Z. 1985-04-01T08:04:16.00 10.0 undecidable manual SN 282 0.0133 1.66 0.2
--.MA1.Z. 1985-04-01T08:04:13.00 10.0 undecidable manual PN 274 0.0249 0.19 1.2
--.CH1.Z. 1985-04-01T08:04:09.50 10.0 undecidable manual PN 302 0.0229 -0.28 1.3
--.ORI.Z. 1985-04-01T08:04:09.00 10.0 undecidable manual PN 151 0.0225 -0.06 1.4
--.PE1.Z. 1985-04-01T08:04:06.00 10.0 undecidable manual PN 126 0.0215 -1.46 0.6
--.AQU.Z. 1985-04-01T08:04:06.00 10.0 undecidable manual SN 274 0.01 0.36 0.6
--.BRT.Z. 1985-04-01T08:04:04.50 10.0 undecidable manual PN 128 0.0196 -0.16 1.4
--.PRG.Z. 1985-04-01T08:04:03.00 10.0 undecidable manual PN 294 0.0181 0.53 2.7
--.BAI.Z. 1985-04-01T08:04:03.00 10.0 undecidable manual PN? 127 0.0168 2.53 0.1
--.SGG.Z. 1985-04-01T08:04:02.00 10.0 undecidable manual SG 203 0.0087 0.44 0.6
--.MS1.Z. 1985-04-01T08:04:02.00 10.0 undecidable manual SG 125 0.0086 0.78 0.9
--.SD1.Z. 1985-04-01T08:04:01.00 10.0 undecidable manual SG 235 0.0088 -1.28 0.6
--.AS1.Z. 1985-04-01T08:04:00.00 10.0 undecidable manual PN 296 0.0165 0.09 3.2
--.RMP.Z. 1985-04-01T08:03:59.00 10.0 undecidable manual PN 254 0.0152 0.97 1.1
--.SGO.Z. 1985-04-01T08:03:59.20 10.0 undecidable manual PN 169 0.0155 0.66 1.4
--.AR1.Z. 1985-04-01T08:03:59.00 10.0 undecidable manual PN 310 0.017 -1.67 1.2
--.SOR.Z. 1985-04-01T08:03:58.00 10.0 undecidable manual PN 194 0.0156 -0.6 1.4
--.MNS.Z. 1985-04-01T08:03:58.00 10.0 positive manual PN 274 0.0148 0.67 2.7
--.PO9.Z. 1985-04-01T08:03:55.20 10.0 undecidable manual PN 282 0.0133 0.16 1.6
--.AM1.Z. 1985-04-01T08:03:54.80 10.0 undecidable manual PN 323 0.0143 -1.83 0.5
--.TR9.Z. 1985-04-01T08:03:53.00 10.0 undecidable manual PN 168 0.0112 1.18 1
--.MSC.Z. 1985-04-01T08:03:52.10 10.0 undecidable manual PN 212 0.0115 -0.23 1.6
--.AQU.Z. 1985-04-01T08:03:49.80 10.0 undecidable manual PN 274 0.01 -0.21 1.6
--.MS1.Z. 1985-04-01T08:03:47.00 10.0 undecidable manual PG 125 0.0086 -0.46 1.5
--.SGG.Z. 1985-04-01T08:03:46.30 10.0 undecidable manual PG 203 0.0087 -1.36 0.8
--.SD1.Z. 1985-04-01T08:03:44.50 10.0 negative manual PG? 235 0.0088 -3.57 0
--.DUI.Z. 1985-04-01T08:03:41.40 10.0 undecidable manual PG 208 0.0062 -1.24 0.9
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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