Earthquake with magnitude of Md 2.2 on date 25-02-1985 and time 01:26:53 (UTC) in region 10 km SW Pietracamela (TE)

A magnitude Md 2.2 earthquake occured in region: 10 km SW Pietracamela (TE), on

  • 25-02-1985 01:26:53 (UTC)
  • 25-02-1985 02:26:53 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.46, 13.48 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
Pietracamela TE 10 271 271
Crognaleto TE 10 1297 1568
Fano Adriano TE 12 296 1864
L'Aquila AQ 13 69753 71617
Campotosto AQ 14 542 72159
Pizzoli AQ 15 4326 76485
Poggio Picenze AQ 16 1136 77621
Barete AQ 16 737 78358
Capitignano AQ 16 665 79023
Isola del Gran Sasso d'Italia TE 16 4773 83796
Barisciano AQ 17 1828 85624
Tossicia TE 17 1406 87030
Fossa AQ 18 721 87751
Cortino TE 19 656 88407
Santo Stefano di Sessanio AQ 19 111 88518
Sant'Eusanio Forconese AQ 19 394 88912
Ocre AQ 19 1167 90079
Montorio al Vomano TE 19 8218 98297
Colledara TE 19 2179 100476
Castelli TE 20 1159 101635
San Demetrio ne' Vestini AQ 20 1854 103489

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km NE of L'Aquila (69753 inhabitants)
29 Km SW of Teramo (54892 inhabitants)
56 Km W of Montesilvano (53738 inhabitants)
58 Km W of Chieti (51815 inhabitants)
61 Km W of Pescara (121014 inhabitants)
69 Km E of Terni (111501 inhabitants)
78 Km NE of Tivoli (56533 inhabitants)
80 Km NE of Guidonia Montecelio (88673 inhabitants)
84 Km SE of Foligno (57155 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
Rev 1000 Md 2.2 1985-02-25
01:26:53
42.46 13.48 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 2479
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-02-25 01:26:53 ± 0.355
Latitude 42.46 ± 0.01
Longitude 13.48 ± 0.04
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 2479

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) 3306.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 226
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00097
Epicentral distance of station farthest from the epicenter (degree) 0.00696
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:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 2479
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:07:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.CM8.Z. 1985-02-25T01:27:21.00 10.0 undecidable manual SG 341 0.007 0.52 0.2
--.CM8.Z. 1985-02-25T01:27:08.80 10.0 undecidable manual PG 341 0.007 -0.33 0.8
--.MNS.Z. 1985-02-25T01:27:05.50 10.0 undecidable manual PG 263 0.0053 -0.19 1.5
--.AQU.Z. 1985-02-25T01:26:59.50 10.0 undecidable manual SG 208 0.001 0.22 0.6
--.AQU.Z. 1985-02-25T01:26:57.00 10.0 undecidable manual PG 208 0.001 0.11 1.9
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download