Earthquake with magnitude of Md 2.3 on date 19-01-1989 and time 18:12:33 (Italy) in region 4 km S L'Aquila (AQ)

A magnitude Md 2.3 earthquake occured in region: 4 km S L'Aquila (AQ), on

  • 19-01-1989 17:12:33 (UTC)
  • 19-01-1989 18:12:33 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.3130, 13.3950 at 9 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
L'Aquila AQ 4 69753 69753
Lucoli AQ 5 1011 70764
Ocre AQ 7 1167 71931
Fossa AQ 8 721 72652
Tornimparte AQ 8 3187 75839
Sant'Eusanio Forconese AQ 11 394 76233
Rocca di Cambio AQ 12 533 76766
Poggio Picenze AQ 12 1136 77902
Villa Sant'Angelo AQ 13 424 78326
Scoppito AQ 13 3727 82053
San Demetrio ne' Vestini AQ 14 1854 83907
Rocca di Mezzo AQ 16 1526 85433
Pizzoli AQ 16 4326 89759
Fagnano Alto AQ 16 418 90177
Barisciano AQ 16 1828 92005
Prata d'Ansidonia AQ 18 496 92501
Barete AQ 18 737 93238
Borgorose RI 19 4591 97829
Fontecchio AQ 20 369 98198

Municipalities with at least 50000 inhabitants

An earthquake occurred to
4 Km S of L'Aquila (69753 inhabitants)
46 Km SW of Teramo (54892 inhabitants)
63 Km NE of Tivoli (56533 inhabitants)
64 Km W of Chieti (51815 inhabitants)
65 Km NE of Guidonia Montecelio (88673 inhabitants)
66 Km W of Montesilvano (53738 inhabitants)
67 Km E of Terni (111501 inhabitants)
69 Km W of Pescara (121014 inhabitants)
86 Km NE of Velletri (53303 inhabitants)
88 Km NE of Roma (2864731 inhabitants)
91 Km SE of Foligno (57155 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 1.6
1989-01-19
17:12:33
42.313 13.395 9 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 85529
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-01-19 17:12:33 ± 0.206
Latitude 42.3130 ± 0.0111
Longitude 13.3950 ± 0.0235
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 85529

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) 2292.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 137
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00032
Epicentral distance of station farthest from the epicenter (degree) 0.00834
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 85529
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:20:17

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 85529
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
--.CM8.Z. 1989-01-19T17:13:06.73 10.0 undecidable manual SG! 348 0.8991 2.46 0
--.ASS.Z. 1989-01-19T17:13:05.52 10.0 undecidable manual SG 324 0.9213 0.41 0.4
--.SDI.Z. 1989-01-19T17:12:57.20 10.0 undecidable manual SG 152 0.6771 -0.09 0.7
--.ASS.Z. 1989-01-19T17:12:51.68 10.0 undecidable manual PG 324 0.9213 0.02 1.5
--.ALP.Z. 1989-01-19T17:12:51.61 10.0 undecidable manual SG 15 0.4773 0.7 0.4
--.CM8.Z. 1989-01-19T17:12:50.36 10.0 undecidable manual PG 348 0.8991 -0.82 0.5
--.SDI.Z. 1989-01-19T17:12:46.78 10.0 undecidable manual PG 152 0.6771 -0.27 1.4
--.CP9.Z. 1989-01-19T17:12:45.86 10.0 undecidable manual PG 216 0.5439 1.04 0.4
--.ALP.Z. 1989-01-19T17:12:43.52 10.0 undecidable manual PG 15 0.4773 0.05 1.8
--.MNS.Z. 1989-01-19T17:12:43.87 10.0 undecidable manual PG 278 0.5328 -0.48 1.1
--.AQU.Z. 1989-01-19T17:12:35.45 10.0 undecidable manual PG 7 0.0333 0.09 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