Earthquake with magnitude of Md 2.5 on date 04-03-1985 and time 04:22:19 (UTC) in region 5 km SE Pizzoli (AQ)

A magnitude Md 2.5 earthquake occured in region: 5 km SE Pizzoli (AQ), on

  • 04-03-1985 04:22:19 (UTC)
  • 04-03-1985 05:22:19 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.4, 13.32 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
Pizzoli AQ 5 4326 4326
Scoppito AQ 6 3727 8053
Barete AQ 7 737 8790
L'Aquila AQ 8 69753 78543
Cagnano Amiterno AQ 11 1369 79912
Tornimparte AQ 12 3187 83099
Lucoli AQ 12 1011 84110
Capitignano AQ 14 665 84775
Montereale AQ 16 2581 87356
Ocre AQ 18 1167 88523
Fossa AQ 18 721 89244
Campotosto AQ 18 542 89786
Antrodoco RI 20 2588 92374

Municipalities with at least 50000 inhabitants

An earthquake occurred to
8 Km NW of L'Aquila (69753 inhabitants)
43 Km SW of Teramo (54892 inhabitants)
58 Km E of Terni (111501 inhabitants)
64 Km NE of Tivoli (56533 inhabitants)
66 Km NE of Guidonia Montecelio (88673 inhabitants)
69 Km W of Montesilvano (53738 inhabitants)
70 Km W of Chieti (51815 inhabitants)
74 Km W of Pescara (121014 inhabitants)
80 Km SE of Foligno (57155 inhabitants)
89 Km NE of Roma (2864731 inhabitants)
91 Km NE of Velletri (53303 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 2.5 1985-03-04
04:22:19
42.4 13.32 8 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 2989
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-03-04 04:22:19 ± 0.324
Latitude 42.40 ± 0.04
Longitude 13.32 ± 0.07
Depth (km) 8 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 2989

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) 7493.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 161
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00065
Epicentral distance of station farthest from the epicenter (degree) 0.00737
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 2989
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:07:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.AS1.Z. 1985-03-04T04:22:47.00 10.0 undecidable manual SG 323 0.0074 -1.73 0
--.SD1.Z. 1985-03-04T04:22:46.00 10.0 undecidable manual SG 152 0.007 -1.17 0.2
--.AS1.Z. 1985-03-04T04:22:37.00 10.0 undecidable manual PG 323 0.0074 0.44 1.3
--.SD1.Z. 1985-03-04T04:22:36.50 10.0 undecidable manual PG 152 0.007 0.84 0.8
--.PO9.Z. 1985-03-04T04:22:34.00 10.0 undecidable manual SG 302 0.0029 1.19 0.2
--.MNS.Z. 1985-03-04T04:22:29.50 10.0 undecidable manual PG 268 0.0042 -0.5 1.6
--.PO9.Z. 1985-03-04T04:22:27.50 10.0 undecidable manual PG 302 0.0029 0.13 2
--.AQU.Z. 1985-03-04T04:22:24.00 10.0 undecidable manual SG 125 0.0006 0.05 0.8
--.AQU.Z. 1985-03-04T04:22:22.00 10.0 undecidable manual PG 125 0.0006 -0.25 1.9
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download