Earthquake with magnitude of Md 2.1 on date 07-04-1985 and time 09:09:27 (Italy) in region 9 km SW Pietracamela (TE)

A magnitude Md 2.1 earthquake occured in region: 9 km SW Pietracamela (TE), on

  • 07-04-1985 07:09:27 (UTC)
  • 07-04-1985 09:09:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4600, 13.4830 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 9 271 271
Crognaleto TE 10 1297 1568
Fano Adriano TE 11 296 1864
L'Aquila AQ 14 69753 71617
Campotosto AQ 14 542 72159
Isola del Gran Sasso d'Italia TE 16 4773 76932
Pizzoli AQ 16 4326 81258
Poggio Picenze AQ 16 1136 82394
Capitignano AQ 16 665 83059
Barete AQ 17 737 83796
Tossicia TE 17 1406 85202
Barisciano AQ 17 1828 87030
Cortino TE 18 656 87686
Montorio al Vomano TE 18 8218 95904
Fossa AQ 18 721 96625
Colledara TE 19 2179 98804
Santo Stefano di Sessanio AQ 19 111 98915
Castelli TE 19 1159 100074
Sant'Eusanio Forconese AQ 19 394 100468
Ocre AQ 20 1167 101635
San Demetrio ne' Vestini AQ 20 1854 103489

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km NE of L'Aquila (69753 inhabitants)
29 Km SW of Teramo (54892 inhabitants)
55 Km W of Montesilvano (53738 inhabitants)
58 Km W of Chieti (51815 inhabitants)
60 Km W of Pescara (121014 inhabitants)
69 Km E of Terni (111501 inhabitants)
79 Km NE of Tivoli (56533 inhabitants)
81 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
Bulletin
Rev1000
Md 2.1 1985-04-07
07:09:27
42.46 13.483 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 4289
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-04-07 07:09:27 ± 0.152
Latitude 42.4600 ± 0.0092
Longitude 13.4830 ± 0.0208
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 4289

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) 1990.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 198
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00105
Epicentral distance of station farthest from the epicenter (degree) 0.00372
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 4289
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:08:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.PO9.Z. 1985-04-07T07:09:43.00 10.0 undecidable manual SG 286 0.4107 0.33 0.1
--.PO9.Z. 1985-04-07T07:09:36.00 10.0 undecidable manual PG 286 0.4107 -0.23 0.6
--.ALP.Z. 1985-04-07T07:09:36.50 10.0 undecidable manual SG? 10 0.3219 -3.33 0
--.ALP.Z. 1985-04-07T07:09:34.60 10.0 undecidable manual PG 10 0.3219 0.01 3.1
--.AQU.Z. 1985-04-07T07:09:33.00 10.0 undecidable manual SG 209 0.1221 -0.27 0.2
--.AQU.Z. 1985-04-07T07:09:31.00 10.0 undecidable manual PG 209 0.1221 0.2 0.9
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