Earthquake with magnitude of Md 2.3 on date 06-07-1991 and time 14:06:56 (Italy) in region 7 km W Terranova di Pollino (PZ)

A magnitude Md 2.3 earthquake occured in region: 7 km W Terranova di Pollino (PZ), on

  • 06-07-1991 12:06:56 (UTC)
  • 06-07-1991 14:06:56 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.9540, 16.2290 at 8 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
Terranova di Pollino PZ 7 1208 1208
San Severino Lucano PZ 10 1563 2771
San Lorenzo Bellizzi CS 11 644 3415
San Costantino Albanese PZ 11 729 4144
Viggianello PZ 12 3025 7169
Alessandria del Carretto CS 13 462 7631
San Paolo Albanese PZ 13 294 7925
Frascineto CS 13 2154 10079
Francavilla in Sinni PZ 15 4215 14294
Cersosimo PZ 15 656 14950
Morano Calabro CS 15 4576 19526
Civita CS 16 902 20428
Castrovillari CS 16 22240 42668
Rotonda PZ 16 3494 46162
San Basile CS 17 1055 47217
Cerchiara di Calabria CS 17 2385 49602
Noepoli PZ 17 878 50480
Episcopia PZ 18 1434 51914
Plataci CS 18 739 52653
Fardella PZ 19 627 53280
Chiaromonte PZ 19 1965 55245

Municipalities with at least 50000 inhabitants

An earthquake occurred to
73 Km N of Cosenza (67546 inhabitants)
84 Km SE of Potenza (67122 inhabitants)
85 Km SW 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 2.3
ML-VAX 1.9
1991-07-06
12:06:56
39.954 16.229 8 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 144769
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1991-07-06 12:06:56 ± 0.187
Latitude 39.9540 ± 0.0122
Longitude 16.2290 ± 0.0158
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 144769

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) 1912.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 92
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
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) 0.01190
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 144769
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:15:10

ML:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 144769
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
--.CZI.Z. 1991-07-06T12:07:23.74 10.0 undecidable manual SG 185 0.7326 1.53 0
--.DR2.Z. 1991-07-06T12:07:20.32 10.0 undecidable manual PN 190 1.3209 -0.47 0.6
--.PF9.Z. 1991-07-06T12:07:18.74 10.0 undecidable manual SG 326 0.6549 -0.96 0.1
--.MGR.Z. 1991-07-06T12:07:16.98 10.0 undecidable manual SG 289 0.5439 0.9 0.2
--.SGO.Z. 1991-07-06T12:07:15.00 10.0 undecidable manual PG 311 0.9213 0.33 1
--.CZI.Z. 1991-07-06T12:07:11.32 10.0 undecidable manual PG 185 0.7326 0.14 1.3
--.PF9.Z. 1991-07-06T12:07:10.54 10.0 undecidable manual PG 326 0.6549 0.81 0.5
--.TDS.Z. 1991-07-06T12:07:07.60 10.0 undecidable manual SG 164 0.2997 -0.55 0.4
--.MGR.Z. 1991-07-06T12:07:06.64 10.0 undecidable manual PG 289 0.5439 -1 0.3
--.ROI.Z. 1991-07-06T12:07:05.52 10.0 undecidable manual PG 145 0.4551 -0.52 1
--.ORI.Z. 1991-07-06T12:07:04.36 10.0 undecidable manual SG 59 0.1887 0.47 0.4
--.TDS.Z. 1991-07-06T12:07:03.60 10.0 undecidable manual PG 164 0.2997 0 1.6
--.ORI.Z. 1991-07-06T12:07:00.55 10.0 negative manual PG 59 0.1887 -0.05 3.2
--.CSI.Z. 1991-07-06T12:07:00.66 10.0 undecidable manual PG 163 0.1665 0.35 1.3
--.MMN.Z. 1991-07-06T12:07:00.60 10.0 undecidable manual PG 251 0.1887 -0.08 3.1
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