Earthquake with magnitude of Md 2.9 on date 23-01-1989 and time 22:24:58 (Italy) in region 2 km SE Prata d'Ansidonia (AQ)

A magnitude Md 2.9 earthquake occured in region: 2 km SE Prata d'Ansidonia (AQ), on

  • 23-01-1989 21:24:58 (UTC)
  • 23-01-1989 22:24:58 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.27, 13.63 at 1 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
Prata d'Ansidonia AQ 2 496 496
San Pio delle Camere AQ 3 661 1157
Fontecchio AQ 4 369 1526
Caporciano AQ 4 230 1756
Fagnano Alto AQ 4 418 2174
San Demetrio ne' Vestini AQ 6 1854 4028
Carapelle Calvisio AQ 6 87 4115
Tione degli Abruzzi AQ 7 310 4425
Villa Sant'Angelo AQ 7 424 4849
Castelvecchio Calvisio AQ 7 153 5002
Barisciano AQ 7 1828 6830
Sant'Eusanio Forconese AQ 9 394 7224
Santo Stefano di Sessanio AQ 9 111 7335
Calascio AQ 9 137 7472
Poggio Picenze AQ 9 1136 8608
Navelli AQ 9 554 9162
Rocca di Mezzo AQ 11 1526 10688
Rocca di Cambio AQ 12 533 11221
Fossa AQ 12 721 11942
Capestrano AQ 12 884 12826
Acciano AQ 13 327 13153
Ocre AQ 13 1167 14320
Ofena AQ 13 506 14826
Secinaro AQ 13 359 15185
Collepietro AQ 14 237 15422
Castel del Monte AQ 14 413 15835
Villa Santa Lucia degli Abruzzi AQ 15 123 15958
San Benedetto in Perillis AQ 15 113 16071
Molina Aterno AQ 16 386 16457
Gagliano Aterno AQ 17 254 16711
Ovindoli AQ 17 1227 17938
Castelvecchio Subequo AQ 17 982 18920
Bussi sul Tirino PE 18 2518 21438
Castel di Ieri AQ 19 303 21741

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km E of L'Aquila (69753 inhabitants)
44 Km S of Teramo (54892 inhabitants)
46 Km W of Chieti (51815 inhabitants)
51 Km SW of Montesilvano (53738 inhabitants)
53 Km W of Pescara (121014 inhabitants)
76 Km E of Tivoli (56533 inhabitants)
80 Km E of Guidonia Montecelio (88673 inhabitants)
87 Km E of Terni (111501 inhabitants)
95 Km NE of Velletri (53303 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 2.9
ML-VAX 2.1
1989-01-23
21:24:58
42.27 13.63 1 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 85899
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-01-23 21:24:58 ± 0.246
Latitude 42.27 ± 0.01
Longitude 13.63 ± 0.03
Depth (km) 1 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 85899

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) 2675.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 139
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00162
Epicentral distance of station farthest from the epicenter (degree) 0.0119
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

Md:2.9

Field Value
Value 2.9
Uncertainty
Num. used stations 6
Type of magnitude Md
Reference to an origin 85899
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:20:38

ML:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 6
Type of magnitude ML
Reference to an origin 85899
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
--.ASS.Z. 1989-01-23T21:25:37.00 10.0 undecidable manual SG 318 0.0096 0.18 0.6
--.CM8.Z. 1989-01-23T21:25:34.40 10.0 undecidable manual SG 339 0.0089 0.05 0.9
--.RDP.Z. 1989-01-23T21:25:31.00 10.0 undecidable manual SG 233 0.0075 1.43 0.1
--.SS8.Z. 1989-01-23T21:25:27.70 10.0 undecidable manual SG 338 0.0071 -0.3 1
--.MNS.Z. 1989-01-23T21:25:25.00 10.0 undecidable manual SG 279 0.0063 -0.2 0.7
--.ARV.Z. 1989-01-23T21:25:25.26 10.0 undecidable manual PN 338 0.0119 0.73 0.8
--.CP9.Z. 1989-01-23T21:25:23.50 10.0 undecidable manual SG 231 0.0057 0.41 0.6
--.ASS.Z. 1989-01-23T21:25:20.60 10.0 undecidable manual PG 318 0.0096 -0.13 1.4
--.SDI.Z. 1989-01-23T21:25:19.40 10.0 undecidable manual SG 165 0.0051 -1.43 0.1
--.ALP.Z. 1989-01-23T21:25:18.60 10.0 undecidable manual SG 355 0.0046 -0.03 1.1
--.CM8.Z. 1989-01-23T21:25:18.50 10.0 undecidable manual PG 339 0.0089 -0.8 0.8
--.DUI.Z. 1989-01-23T21:25:18.90 10.0 undecidable manual PG 134 0.0078 1.15 0.4
--.RDP.Z. 1989-01-23T21:25:16.66 10.0 undecidable manual PG 233 0.0075 0.11 1.7
--.RMP.Z. 1989-01-23T21:25:16.38 10.0 undecidable manual PG 236 0.0074 0.24 1.6
--.SS8.Z. 1989-01-23T21:25:15.00 10.0 undecidable manual PG 338 0.0071 -0.64 1.1
--.CP9.Z. 1989-01-23T21:25:12.10 10.0 undecidable manual PG 231 0.0057 -0.8 1
--.MNS.Z. 1989-01-23T21:25:12.91 10.0 undecidable manual PG 279 0.0063 -1.12 0.5
--.SDI.Z. 1989-01-23T21:25:11.21 10.0 undecidable manual PG 165 0.0051 -0.29 1.7
--.AZI.Z. 1989-01-23T21:25:10.21 10.0 undecidable manual SG 206 0.0028 -0.6 0.5
--.ALP.Z. 1989-01-23T21:25:10.30 10.0 undecidable manual PG 355 0.0046 0.06 3.6
--.AZI.Z. 1989-01-23T21:25:06.10 10.0 undecidable manual PG 206 0.0028 0.29 1.7
--.AQU.Z. 1989-01-23T21:25:04.35 10.0 undecidable manual PG 297 0.0016 1.41 0.2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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