Earthquake with magnitude of Md 3.4 on date 18-09-1989 and time 17:09:28 (Italy) in region 8 km W Cittareale (RI)

A magnitude Md 3.4 earthquake occured in region: 8 km W Cittareale (RI), on

  • 18-09-1989 15:09:28 (UTC)
  • 18-09-1989 17:09:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.63, 13.06 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Cittareale RI 8 482 482
Monteleone di Spoleto PG 9 599 1081
Cascia PG 11 3217 4298
Leonessa RI 11 2435 6733
Posta RI 12 694 7427
Poggiodomo PG 14 117 7544
Borbona RI 14 617 8161
Accumoli RI 17 667 8828
Polino TR 18 233 9061
Norcia PG 18 4957 14018
Amatrice RI 19 2657 16675
Montereale AQ 19 2581 19256
Micigliano RI 20 127 19383
Poggio Bustone RI 20 2055 21438

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Terni (111501 inhabitants)
42 Km NW of L'Aquila (69753 inhabitants)
46 Km SE of Foligno (57155 inhabitants)
53 Km W of Teramo (54892 inhabitants)
75 Km NE of Guidonia Montecelio (88673 inhabitants)
76 Km SE of Perugia (166134 inhabitants)
77 Km N of Tivoli (56533 inhabitants)
82 Km E of Viterbo (67173 inhabitants)
90 Km W of Montesilvano (53738 inhabitants)
95 Km NE of Roma (2864731 inhabitants)
96 Km W of Chieti (51815 inhabitants)
96 Km W of Pescara (121014 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 2.7
1989-09-18
15:09:28
42.63 13.06 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 99649
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-09-18 15:09:28 ± 0.151
Latitude 42.63 ± 0.01
Longitude 13.06 ± 0.02
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 99649

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) 2019
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 47
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 40
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) 0.00332
Epicentral distance of station farthest from the epicenter (degree) 0.03197
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 28
Magnitudes information

Md:3.4

Field Value
Value 3.4
Uncertainty
Num. used stations 5
Type of magnitude Md
Reference to an origin 99649
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:33:04

ML:2.7

Field Value
Value 2.7
Uncertainty
Num. used stations 7
Type of magnitude ML
Reference to an origin 99649
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
--.CTI.Z. 1989-09-18T15:10:25.20 10.0 undecidable manual PN 343 0.032 1.18 0.4
--.VOY.Z. 1989-09-18T15:10:22.90 10.0 undecidable manual PN 9 0.031 0.38 0.9
--.BOB.Z. 1989-09-18T15:10:22.40 10.0 undecidable manual PN 310 0.0303 0.62 0.8
--.MGR.Z. 1989-09-18T15:10:19.00 10.0 undecidable manual PN 142 0.028 1.09 0.5
--.TRI.Z. 1989-09-18T15:10:18.00 10.0 undecidable manual PN 8 0.028 0.06 1
--.SGG.Z. 1989-09-18T15:10:16.00 10.0 undecidable manual SN 141 0.0142 -1.77 0.1
--.DUI.Z. 1989-09-18T15:10:15.71 10.0 undecidable manual SN 132 0.0127 1.8 0.1
--.SGO.Z. 1989-09-18T15:10:11.21 10.0 undecidable manual PN 139 0.024 -0.52 1
--.MME.Z. 1989-09-18T15:10:07.50 10.0 undecidable manual PN 312 0.0208 0.09 1.3
--.BDI.Z. 1989-09-18T15:10:07.84 10.0 undecidable manual PN 309 0.0206 1.25 0.5
--.MS1.Z. 1989-09-18T15:10:07.00 10.0 undecidable manual PN 112 0.0209 -0.08 1.3
--.SOR.Z. 1989-09-18T15:10:05.60 10.0 undecidable manual PN 154 0.0203 -0.54 1.1
--.AM8.Z. 1989-09-18T15:10:04.60 10.0 undecidable manual SG 22 0.009 1.34 0.4
--.RDP.Z. 1989-09-18T15:10:00.75 10.0 undecidable manual SG 196 0.0081 0.46 0.6
--.ARV.Z. 1989-09-18T15:10:00.28 10.0 undecidable manual SG 354 0.0079 1.11 0.3
--.RMP.Z. 1989-09-18T15:09:59.24 10.0 undecidable manual SG 197 0.0077 0.47 0.6
--.SGG.Z. 1989-09-18T15:09:58.10 10.0 positive manual PN 141 0.0142 1.24 1.3
--.PGD.Z. 1989-09-18T15:09:57.13 10.0 undecidable manual PN 322 0.0142 0.3 1.5
--.SFI.Z. 1989-09-18T15:09:57.99 10.0 undecidable manual PN 325 0.0139 1.59 0.4
--.RFI.Z. 1989-09-18T15:09:56.40 10.0 undecidable manual PN 152 0.0134 0.72 1.2
--.DUI.Z. 1989-09-18T15:09:55.78 10.0 undecidable manual PN 132 0.0127 1.15 0.8
--.MC8.Z. 1989-09-18T15:09:55.50 10.0 undecidable manual SG 21 0.0064 1.43 0.3
--.CP9.Z. 1989-09-18T15:09:55.88 10.0 undecidable manual SG 185 0.0069 -0.07 0.7
--.AZI.Z. 1989-09-18T15:09:54.40 10.0 undecidable manual SG 156 0.0062 0.74 0.5
--.MAO.Z. 1989-09-18T15:09:53.93 10.0 positive manual PN 261 0.0127 -0.69 2.5
--.CM8.Z. 1989-09-18T15:09:49.50 10.0 undecidable manual SG 5 0.0051 0.11 1
--.AM8.Z. 1989-09-18T15:09:47.10 10.0 undecidable manual PG 22 0.009 -1.39 1.1
--.ASS.Z. 1989-09-18T15:09:47.97 10.0 undecidable manual SG 325 0.0047 -0.05 0.7
--.ARV.Z. 1989-09-18T15:09:46.95 10.0 undecidable manual PG 354 0.0079 0.83 1.1
--.RDP.Z. 1989-09-18T15:09:46.31 10.0 undecidable manual PG 196 0.0081 -0.46 1.5
--.RMP.Z. 1989-09-18T15:09:45.47 10.0 undecidable manual PG 197 0.0077 -0.42 1.5
--.CP9.Z. 1989-09-18T15:09:44.29 10.0 undecidable manual PG 185 0.0069 0.03 1.7
--.ALP.Z. 1989-09-18T15:09:42.50 10.0 undecidable manual SG 67 0.0036 -1.84 0.1
--.MC8.Z. 1989-09-18T15:09:42.60 10.0 undecidable manual PG 21 0.0064 -0.58 2.8
--.AZI.Z. 1989-09-18T15:09:42.61 10.0 undecidable manual PG 156 0.0062 -0.33 1.6
--.ASS.Z. 1989-09-18T15:09:39.11 10.0 undecidable manual PG 325 0.0047 -0.57 1.4
--.CM8.Z. 1989-09-18T15:09:39.50 10.0 undecidable manual PG 5 0.0051 -0.98 2
--.AQU.Z. 1989-09-18T15:09:37.30 10.0 undecidable manual PG 137 0.0033 0.35 1.6
--.ALP.Z. 1989-09-18T15:09:35.74 10.0 undecidable manual PG 67 0.0036 -1.56 0.4
--.MNS.Z. 1989-09-18T15:09:35.35 10.0 positive manual PG 228 0.0033 -1.26 1.4
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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