Earthquake with magnitude of Md 2.3 on date 16-04-1988 and time 14:09:35 (Italy) in region 6 km NW Montereale (AQ)

A magnitude Md 2.3 earthquake occured in region: 6 km NW Montereale (AQ), on

  • 16-04-1988 12:09:35 (UTC)
  • 16-04-1988 14:09:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.5680, 13.2120 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
Montereale AQ 6 2581 2581
Cittareale RI 7 482 3063
Borbona RI 9 617 3680
Capitignano AQ 9 665 4345
Amatrice RI 9 2657 7002
Posta RI 11 694 7696
Cagnano Amiterno AQ 12 1369 9065
Campotosto AQ 13 542 9607
Barete AQ 14 737 10344
Accumoli RI 15 667 11011
Pizzoli AQ 16 4326 15337
Micigliano RI 18 127 15464
Antrodoco RI 20 2588 18052

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km NW of L'Aquila (69753 inhabitants)
42 Km W of Teramo (54892 inhabitants)
46 Km E of Terni (111501 inhabitants)
60 Km SE of Foligno (57155 inhabitants)
75 Km NE of Guidonia Montecelio (88673 inhabitants)
75 Km NE of Tivoli (56533 inhabitants)
77 Km W of Montesilvano (53738 inhabitants)
82 Km W of Chieti (51815 inhabitants)
83 Km W of Pescara (121014 inhabitants)
90 Km SE of Perugia (166134 inhabitants)
92 Km E of Viterbo (67173 inhabitants)
96 Km NE of Roma (2864731 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 1988-04-16
12:09:35
42.568 13.212 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 66579
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-04-16 12:09:35 ± 0.335
Latitude 42.5680 ± 0.0214
Longitude 13.2120 ± 0.0402
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 66579

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) 4059.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 158
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00227
Epicentral distance of station farthest from the epicenter (degree) 0.00866
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:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 5
Type of magnitude Md
Reference to an origin 66579
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:03:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ARV.Z. 1988-04-16T12:10:07.48 10.0 undecidable manual SG 348 0.9435 -0.27 0.6
--.ASS.Z. 1988-04-16T12:09:57.67 10.0 undecidable manual SG 320 0.6327 -0.17 0.8
--.ARV.Z. 1988-04-16T12:09:55.39 10.0 undecidable manual PG 348 0.9435 1.35 0.5
--.SDI.Z. 1988-04-16T12:09:54.42 10.0 undecidable manual PG 152 0.9657 0.09 1.6
--.MNS.Z. 1988-04-16T12:09:52.66 10.0 undecidable manual SG 245 0.4329 1.56 0.2
--.ASS.Z. 1988-04-16T12:09:47.15 10.0 undecidable manual PG 320 0.6327 -1.17 0.8
--.MNS.Z. 1988-04-16T12:09:43.91 10.0 undecidable manual PG 245 0.4329 -0.52 1.7
--.AQU.Z. 1988-04-16T12:09:40.96 10.0 undecidable manual PG 146 0.2553 -0.2 1.9
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