Earthquake with magnitude of Md 2.5 on date 27-05-1998 and time 05:04:53 (Italy) in region 6 km NE Viggiano (PZ)

A magnitude Md 2.5 earthquake occured in region: 6 km NE Viggiano (PZ), on

  • 27-05-1998 03:04:53 (UTC)
  • 27-05-1998 05:04:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.3710, 15.9610 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Viggiano PZ 6 3329 3329
Corleto Perticara PZ 7 2511 5840
Montemurro PZ 8 1235 7075
Laurenzana PZ 10 1797 8872
Marsicovetere PZ 11 5546 14418
Armento PZ 12 631 15049
Grumento Nova PZ 12 1700 16749
Spinoso PZ 12 1462 18211
Guardia Perticara PZ 12 552 18763
Sarconi PZ 15 1404 20167
Calvello PZ 15 1948 22115
Tramutola PZ 16 3089 25204
Gorgoglione MT 16 989 26193
Moliterno PZ 16 4062 30255
Anzi PZ 16 1696 31951
San Martino d'Agri PZ 17 801 32752
Gallicchio PZ 18 862 33614
Cirigliano MT 18 375 33989
Pietrapertosa PZ 18 1032 35021
Paterno PZ 19 3368 38389
Castelmezzano PZ 19 800 39189
Abriola PZ 20 1531 40720
Marsico Nuovo PZ 20 4098 44818
Missanello PZ 20 566 45384

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km SE of Potenza (67122 inhabitants)
63 Km SW of Matera (60436 inhabitants)
71 Km SW of Altamura (70396 inhabitants)
87 Km E of Battipaglia (50786 inhabitants)
99 Km S of Andria (100440 inhabitants)
100 Km S of Cerignola (58396 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
ML-VAX 1.5
1998-05-27
03:04:53
40.371 15.961 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 339819
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-05-27 03:04:53 ± 0.321
Latitude 40.3710 ± 0.0535
Longitude 15.9610 ± 0.0579
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 339819

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) 7709.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 173
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.7
Epicentral distance of station closest to the epicenter (degree) 0.00437
Epicentral distance of station farthest from the epicenter (degree) 0.00769
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 339819
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:18:18

ML:1.5

Field Value
Value 1.5
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 339819
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
--.CI9.Z. 1998-05-27T03:05:23.98 10.0 undecidable manual SG 304 0.8547 0.45 0.6
--.MU9.Z. 1998-05-27T03:05:14.60 10.0 undecidable manual SG 317 0.5217 1.23 0.3
--.SGO.Z. 1998-05-27T03:05:12.27 10.0 undecidable manual SG 290 0.5328 -0.6 0.7
--.CI9.Z. 1998-05-27T03:05:11.61 10.0 undecidable manual PG 304 0.8547 0.59 1.5
--.ORI.Z. 1998-05-27T03:05:11.37 10.0 undecidable manual SG 130 0.4884 -0.14 0.8
--.TDS.Z. 1998-05-27T03:05:10.73 10.0 undecidable manual PG 157 0.7659 1.49 0.7
--.MU9.Z. 1998-05-27T03:05:04.67 10.0 undecidable manual PG 317 0.5217 -0.17 2.1
--.SGO.Z. 1998-05-27T03:05:03.63 10.0 undecidable manual PG 290 0.5328 -1.23 0.8
--.ORI.Z. 1998-05-27T03:05:03.63 10.0 undecidable manual PG 130 0.4884 -0.45 1.6
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