Earthquake with magnitude of Md 2.0 on date 10-06-1991 and time 05:20:51 (Italy) in region 2 km S San Mauro Forte (MT)

A magnitude Md 2.0 earthquake occured in region: 2 km S San Mauro Forte (MT), on

  • 10-06-1991 03:20:51 (UTC)
  • 10-06-1991 05:20:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.4660, 16.2530 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
San Mauro Forte MT 3 1552 1552
Stigliano MT 7 4361 5913
Accettura MT 9 1856 7769
Salandra MT 9 2829 10598
Garaguso MT 10 1073 11671
Oliveto Lucano MT 10 450 12121
Cirigliano MT 11 375 12496
Gorgoglione MT 12 989 13485
Calciano MT 15 777 14262
Aliano MT 17 1008 15270
Pietrapertosa PZ 17 1032 16302
Guardia Perticara PZ 17 552 16854
Ferrandina MT 18 8853 25707
Grottole MT 19 2208 27915
Castelmezzano PZ 19 800 28715
Campomaggiore PZ 19 811 29526
Grassano MT 19 5189 34715
Tricarico MT 20 5388 40103
Corleto Perticara PZ 20 2511 42614

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km SW of Matera (60436 inhabitants)
43 Km E of Potenza (67122 inhabitants)
48 Km SW of Altamura (70396 inhabitants)
81 Km SW of Bitonto (55540 inhabitants)
83 Km W of Taranto (201100 inhabitants)
85 Km S of Andria (100440 inhabitants)
87 Km SW of Molfetta (59874 inhabitants)
89 Km S of Bisceglie (55422 inhabitants)
90 Km SW of Bari (326344 inhabitants)
91 Km S of Trani (56217 inhabitants)
94 Km SE of Cerignola (58396 inhabitants)
95 Km S of Barletta (94814 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 2.0
ML-VAX 1.6
1991-06-10
03:20:51
40.466 16.253 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 143129
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1991-06-10 03:20:51 ± 0.206
Latitude 40.4660 ± 0.0143
Longitude 16.2530 ± 0.0174
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 143129

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) 2167.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 111
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) 0.00300
Epicentral distance of station farthest from the epicenter (degree) 0.00704
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:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 5
Type of magnitude Md
Reference to an origin 143129
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:13:35

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 143129
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
--.BRT.Z. 1991-06-10T03:21:18.52 10.0 undecidable manual SG 58 0.777 -0.27 0.5
--.MGR.Z. 1991-06-10T03:21:11.81 10.0 undecidable manual SG 238 0.6216 -1.67 0
--.BRT.Z. 1991-06-10T03:21:07.13 10.0 undecidable manual PG 58 0.777 -0.12 1.5
--.ORI.Z. 1991-06-10T03:21:07.51 10.0 undecidable manual SG 160 0.4329 -0.01 0.8
--.MGR.Z. 1991-06-10T03:21:05.10 10.0 undecidable manual PG 238 0.6216 0.92 0.4
--.VG9.Z. 1991-06-10T03:21:04.70 10.0 undecidable manual SG 307 0.333 0.34 0.6
--.PG9.Z. 1991-06-10T03:21:04.74 10.0 undecidable manual SG 296 0.3552 -0.34 0.6
--.ORI.Z. 1991-06-10T03:21:00.76 10.0 undecidable manual PG 160 0.4329 0.02 1.9
--.PG9.Z. 1991-06-10T03:20:59.19 10.0 undecidable manual PG 296 0.3552 -0.15 1.8
--.VG9.Z. 1991-06-10T03:20:59.40 10.0 undecidable manual PG 307 0.333 0.12 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