Earthquake with magnitude of Md 2.1 on date 11-09-1988 and time 02:55:36 (Italy) in region 3 km S Sassano (SA)

A magnitude Md 2.1 earthquake occured in region: 3 km S Sassano (SA), on

  • 11-09-1988 00:55:36 (UTC)
  • 11-09-1988 02:55:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.3120, 15.5710 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
Sassano SA 4 5013 5013
Monte San Giacomo SA 4 1572 6585
Buonabitacolo SA 6 2549 9134
Sanza SA 8 2608 11742
Teggiano SA 8 7976 19718
Padula SA 8 5368 25086
Sala Consilina SA 10 12664 37750
Montesano sulla Marcellana SA 12 6704 44454
Casalbuono SA 14 1194 45648
Paterno PZ 16 3368 49016
Caselle in Pittari SA 16 1956 50972
Atena Lucana SA 16 2336 53308
San Rufo SA 17 1754 55062
Rofrano SA 17 1576 56638
Piaggine SA 17 1311 57949
San Pietro al Tanagro SA 17 1695 59644
Valle dell'Angelo SA 18 248 59892
Casaletto Spartano SA 18 1420 61312
Marsico Nuovo PZ 18 4098 65410
Sacco SA 19 492 65902
Tramutola PZ 19 3089 68991
Morigerati SA 19 665 69656
Tortorella SA 19 523 70179
Brienza PZ 19 4078 74257
Alfano SA 19 1023 75280
Sant'Arsenio SA 19 2815 78095

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km SW of Potenza (67122 inhabitants)
60 Km SE of Battipaglia (50786 inhabitants)
80 Km SE of Salerno (135261 inhabitants)
85 Km SE of Cava de' Tirreni (53659 inhabitants)
94 Km SE of Avellino (54857 inhabitants)
96 Km W of Matera (60436 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 2.1 1988-09-11
00:55:36
40.312 15.571 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 77049
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-09-11 00:55:36 ± 1.011
Latitude 40.3120 ± 0.0324
Longitude 15.5710 ± 0.1334
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 77049

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) 11875.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 222
Number of associated phases, regardless of their use for origin computation 5
Number of defining phases 5
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) 0.00154
Epicentral distance of station farthest from the epicenter (degree) 0.00656
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitude information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 77049
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:12:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.BSS.Z. 1988-09-11T00:55:52.61 10.0 undecidable manual PG 309 0.7326 1.05 0.2
--.SGO.Z. 1988-09-11T00:55:48.29 10.0 undecidable manual SG 321 0.3108 -0.43 0.4
--.MGR.Z. 1988-09-11T00:55:43.50 10.0 undecidable manual SG 183 0.1665 -0.25 0.5
--.SGO.Z. 1988-09-11T00:55:43.13 10.0 negative manual PG 321 0.3108 -0.36 2.4
--.MGR.Z. 1988-09-11T00:55:40.28 10.0 undecidable manual PG 183 0.1665 -0.08 1.5
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