Earthquake with magnitude of Md 2.4 on date 11-01-1991 and time 03:00:31 (UTC) in region 6 km SW Terranova di Pollino (PZ)

A magnitude Md 2.4 earthquake occured in region: 6 km SW Terranova di Pollino (PZ), on

  • 11-01-1991 03:00:31 (UTC)
  • 11-01-1991 04:00:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 39.9370, 16.2620 at 40 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 6 1208 1208
San Lorenzo Bellizzi CS 8 644 1852
Alessandria del Carretto CS 10 462 2314
Frascineto CS 11 2154 4468
San Costantino Albanese PZ 12 729 5197
San Paolo Albanese PZ 13 294 5491
Civita CS 13 902 6393
Cerchiara di Calabria CS 13 2385 8778
San Severino Lucano PZ 14 1563 10341
Cersosimo PZ 14 656 10997
Castrovillari CS 15 22240 33237
Plataci CS 15 739 33976
Morano Calabro CS 15 4576 38552
Viggianello PZ 15 3025 41577
San Basile CS 16 1055 42632
Francavilla Marittima CS 17 2910 45542
Francavilla in Sinni PZ 17 4215 49757
Noepoli PZ 18 878 50635
Cassano all'Ionio CS 18 18495 69130
Albidona CS 18 1352 70482
Rotonda PZ 19 3494 73976
Villapiana CS 19 5387 79363
Castroregio CS 20 303 79666
Saracena CS 20 3828 83494

Municipalities with at least 50000 inhabitants

An earthquake occurred to
72 Km N of Cosenza (67546 inhabitants)
86 Km SW of Matera (60436 inhabitants)
87 Km SE of Potenza (67122 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 2.4
ML-VAX 1.8
1991-01-11
03:00:31
39.937 16.262 40 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 134029
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1991-01-11 03:00:31 ± 0.281
Latitude 39.9370 ± 0.0255
Longitude 16.2620 ± 0.0278
Depth (km) 40 ± 6 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 134029

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) 3692.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 137
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
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) 0.01319
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 134029
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:04:58

ML:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 134029
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
--.LCI.Z. 1991-01-11T03:00:54.91 10.0 negative manual P 73 1.4652 -0.15 1.7
--.BRT.Z. 1991-01-11T03:00:51.00 10.0 negative manual P 35 1.1544 0.25 1.6
--.GRI.Z. 1991-01-11T03:00:50.00 10.0 undecidable manual P 173 1.11 -0.3 0.8
--.SGO.Z. 1991-01-11T03:00:48.20 10.0 positive manual P 310 0.9546 -0.06 2.3
--.ORI.Z. 1991-01-11T03:00:44.00 10.0 undecidable manual S 50 0.1665 0.33 0.2
--.TDS.Z. 1991-01-11T03:00:40.00 10.0 undecidable manual P 168 0.2775 0.69 0.3
--.ORI.Z. 1991-01-11T03:00:37.25 10.0 undecidable manual P 50 0.1665 -1.09 0.1
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