Earthquake with magnitude of Md 2.5 on date 23-01-1989 and time 21:35:39 (Italy) in region 4 km SE Atella (PZ)

A magnitude Md 2.5 earthquake occured in region: 4 km SE Atella (PZ), on

  • 23-01-1989 20:35:39 (UTC)
  • 23-01-1989 21:35:39 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.8570, 15.6960 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
Atella PZ 4 3827 3827
Filiano PZ 5 2926 6753
Ripacandida PZ 7 1744 8497
Rionero in Vulture PZ 8 13230 21727
Ginestra PZ 9 747 22474
Barile PZ 10 2785 25259
Maschito PZ 13 1670 26929
Ruvo del Monte PZ 13 1083 28012
Rapolla PZ 14 4432 32444
Forenza PZ 14 2122 34566
San Fele PZ 14 3004 37570
Avigliano PZ 14 11577 49147
Ruoti PZ 16 3579 52726
Melfi PZ 16 17767 70493
Venosa PZ 16 11863 82356
Rapone PZ 17 990 83346
Bella PZ 17 5171 88517
Pietragalla PZ 20 4160 92677

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km NW of Potenza (67122 inhabitants)
49 Km SW of Cerignola (58396 inhabitants)
65 Km SW of Andria (100440 inhabitants)
66 Km E of Battipaglia (50786 inhabitants)
69 Km S of Foggia (151991 inhabitants)
71 Km SW of Barletta (94814 inhabitants)
72 Km W of Altamura (70396 inhabitants)
76 Km E of Avellino (54857 inhabitants)
76 Km SW of Trani (56217 inhabitants)
79 Km W of Matera (60436 inhabitants)
80 Km SW of Bisceglie (55422 inhabitants)
81 Km E of Salerno (135261 inhabitants)
83 Km E of Benevento (60091 inhabitants)
85 Km E of Cava de' Tirreni (53659 inhabitants)
85 Km W of Molfetta (59874 inhabitants)
88 Km S of Manfredonia (57279 inhabitants)
89 Km W of Bitonto (55540 inhabitants)
96 Km S of San Severo (53905 inhabitants)
99 Km E of Scafati (50787 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 2.5 1989-01-23
20:35:39
40.857 15.696 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 85889
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-01-23 20:35:39 ± 0.121
Latitude 40.8570 ± 0.0085
Longitude 15.6960 ± 0.0119
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 85889

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) 1372.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 109
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00275
Epicentral distance of station farthest from the epicenter (degree) 0.00988
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 85889
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:20:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.BRT.Z. 1989-01-23T20:36:16.99 10.0 undecidable manual SN 88 1.0989 -0.38 0.3
--.FG2.Z. 1989-01-23T20:36:14.27 10.0 undecidable manual SG? 337 1.0212 -1.05 0
--.BRT.Z. 1989-01-23T20:36:01.55 10.0 undecidable manual PN 88 1.0989 0.21 1.2
--.FG2.Z. 1989-01-23T20:36:00.48 10.0 undecidable manual PG 337 1.0212 0.33 0.9
--.BAI.Z. 1989-01-23T20:35:58.00 10.0 undecidable manual PG 73 0.9213 -0.26 1.2
--.MGR.Z. 1989-01-23T20:35:54.74 10.0 undecidable manual PG 188 0.7215 0.17 1.6
--.FG4.Z. 1989-01-23T20:35:50.75 10.0 undecidable manual SG 333 0.3108 -0.59 0.1
--.CDM.Z. 1989-01-23T20:35:50.00 10.0 undecidable manual PG 62 0.4884 -0.11 1.8
--.SGO.Z. 1989-01-23T20:35:48.38 10.0 undecidable manual PG 224 0.4107 -0.41 0.8
--.FG4.Z. 1989-01-23T20:35:46.69 10.0 undecidable manual PG 333 0.3108 0.38 0.9
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